[SOLVED]Hardware refresh rate spec differs from actual in xrandr

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steveplatz
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Posts: 28
Joined: Sat Dec 31, 2011 2:45 pm
Location: Seattle

[SOLVED]Hardware refresh rate spec differs from actual in xrandr

Post by steveplatz »

I just hooked up a new ThinkVision S28u-10 to my ThinkPad P50 via the supplied HDMI. I changed my graphics driver to NVDIA-384 because there were issues getting the monitor to work at all as an external display. The products specs list the resolution at 3840 x 2160 and refresh rate at 60 Hz, but I'm not able to use a refresh rate > 30 Hz and the output of

Code: Select all

xrandr -q
is

Code: Select all

Screen 0: minimum 320 x 200, current 5760 x 2160, maximum 16384 x 16384
eDP-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1920x1080     60.01*+  59.93  
   1680x1050     60.00    59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98    60.00  
   1280x1024     59.95    60.02  
   1440x900      59.89  
   1280x960      60.00    59.99  
   1360x768      59.80    59.96  
   1152x864      59.97    60.00  
   1024x768      60.04    60.00    59.95  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   960x600       60.00  
   960x540       59.99  
   800x600       60.00    60.32    59.96    56.25  
   840x525       60.01    59.88  
   800x512       60.17  
   700x525       59.98  
   640x512       60.02  
   720x450       59.89  
   640x480       60.00    59.94    59.94  
   720x400       59.97  
   680x384       59.80    59.96  
   640x400       59.96  
   576x432       60.06  
   640x350       59.84  
   512x384       60.00  
   400x300       60.32    56.34  
   320x240       60.05  
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected 3840x2160+1920+0 (normal left inverted right x axis y axis) 621mm x 341mm
   3840x2160     30.00*   29.97    29.98  
   2560x1600     59.97  
   2560x1440     59.95  
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   1920x1200     59.95  
   1920x1080     60.00    60.00    50.00    59.94    59.93  
   1920x1080i    60.00    50.00    59.94  
   1600x1200     70.00    65.00    60.00  
   1680x1050     69.88    59.95    59.88  
   1600x1024     60.17  
   1400x1050     70.00    59.98  
   1600x900      60.00  
   1280x1024     60.02  
   1440x900      59.89    59.90  
   1280x960      60.00  
   1360x768      59.80    59.96  
   1280x800      59.91  
   1152x864      70.00    60.00  
   1280x720      60.00    50.00    59.94  
   1024x768      60.04    70.07    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   960x600       60.00  
   960x540       59.99  
   800x600       70.00    65.00    60.00    60.32    56.25  
   840x525       69.88    60.01    59.88  
   720x576       50.00  
   800x512       60.17  
   700x525       70.06    59.98  
   720x480       60.00    59.94  
   640x512       60.02  
   720x450       59.89  
   640x480       60.00    60.00    59.94  
   720x400       70.08  
   680x384       59.80    59.96  
   576x432       70.00    60.06  
   512x384       70.07    60.00  
   400x300       60.32    56.34  
   320x240       60.05  
DP-3 disconnected (normal left inverted right x axis y axis)
So, I'm pretty sure that there may be an issue with the driver, but I'm starting a thread here to try to illicit some feedback from others who may have done this kind of troubleshooting in the past. Some more set-up:

Mint 18.3 using XFCE
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 3 times in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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roblm
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Posts: 5939
Joined: Sun Feb 24, 2013 2:41 pm

Re: Hardware refresh rate spec differs from actual in xrandr

Post by roblm »

Use this command in the Terminal to get more info: inxi -Fxrz; echo +; xrandr --verbose

In the Menu at the top, select Edit > Select All and then Edit > Copy

Open the Mint Forum reply window and select </> at the top. Press Ctrl+V to paste the copied lines into a code display window.
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steveplatz
Level 1
Level 1
Posts: 28
Joined: Sat Dec 31, 2011 2:45 pm
Location: Seattle

Re: Hardware refresh rate spec differs from actual in xrandr

Post by steveplatz »

Code: Select all

System:    Host: charmes Kernel: 4.15.0-140-generic x86_64 (64 bit gcc: 5.4.0) Desktop: Xfce 4.12.3 (Gtk 2.24.28)
           Distro: Linux Mint 18.3 Sylvia
Machine:   System: LENOVO (portable) product: 20EN0013US v: ThinkPad P50
           Mobo: LENOVO model: 20EN0013US v: SDK0J40705 WIN Bios: LENOVO v: N1EET70W (1.43 ) date: 07/12/2017
CPU:       Quad core Intel Core i7-6700HQ (-HT-MCP-) cache: 6144 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 20799
           clock speeds: max: 3500 MHz 1: 1182 MHz 2: 2258 MHz 3: 1735 MHz 4: 2061 MHz 5: 2270 MHz 6: 1473 MHz
           7: 1916 MHz 8: 2045 MHz
Graphics:  Card: NVIDIA GM107GLM [Quadro M1000M] bus-ID: 01:00.0
           Display Server: X.Org 1.18.4 drivers: (unloaded: fbdev,vesa) FAILED: nouveau
           Resolution: 1920x1080@60.01hz, 3840x2160@30.00hz
           GLX Renderer: NV117 GLX Version: 3.0 Mesa 18.0.5 Direct Rendering: Yes
Audio:     Card-1 Intel 100 Series/C230 Series Family HD Audio Controller driver: snd_hda_intel bus-ID: 00:1f.3
           Card-2 NVIDIA Device 0fbc driver: snd_hda_intel bus-ID: 01:00.1
           Card-3 Plantronics driver: USB Audio usb-ID: 001-002
           Sound: Advanced Linux Sound Architecture v: k4.15.0-140-generic
Network:   Card-1: Intel Ethernet Connection (2) I219-V driver: e1000e v: 3.2.6-k bus-ID: 00:1f.6
           IF: enp0s31f6 state: down mac: <filter>
           Card-2: Intel Wireless 8260 driver: iwlwifi bus-ID: 04:00.0
           IF: wlp4s0 state: up mac: <filter>
Drives:    HDD Total Size: 525.1GB (50.7% used) ID-1: /dev/sda model: Crucial_CT525MX3 size: 525.1GB
Partition: ID-1: / size: 451G used: 219G (52%) fs: ext4 dev: /dev/sda1
           ID-2: swap-1 size: 33.69GB used: 0.00GB (0%) fs: swap dev: /dev/sda5
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 36.0C mobo: N/A
           Fan Speeds (in rpm): cpu: 0
Repos:     Active apt sources in file: /etc/apt/sources.list.d/additional-repositories.list
           deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable
           Active apt sources in file: /etc/apt/sources.list.d/brave-browser-release-xenial.list
           deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ xenial main
           Active apt sources in file: /etc/apt/sources.list.d/hvr-ghc-xenial.list
           deb http://ppa.launchpad.net/hvr/ghc/ubuntu xenial main
           deb-src http://ppa.launchpad.net/hvr/ghc/ubuntu xenial main
           Active apt sources in file: /etc/apt/sources.list.d/neovim-ppa-stable-xenial.list
           deb http://ppa.launchpad.net/neovim-ppa/stable/ubuntu xenial main
           deb-src http://ppa.launchpad.net/neovim-ppa/stable/ubuntu xenial main
           Active apt sources in file: /etc/apt/sources.list.d/nm-l2tp-network-manager-l2tp-xenial.list
           deb http://ppa.launchpad.net/nm-l2tp/network-manager-l2tp/ubuntu xenial main
           deb-src http://ppa.launchpad.net/nm-l2tp/network-manager-l2tp/ubuntu xenial main
           Active apt sources in file: /etc/apt/sources.list.d/official-package-repositories.list
           deb http://mirrors.evowise.com/linuxmint/packages sylvia main upstream import backport
           deb http://mirrors.arpnetworks.com/Ubuntu xenial main restricted universe multiverse
           deb http://mirrors.arpnetworks.com/Ubuntu xenial-updates main restricted universe multiverse
           deb http://mirrors.arpnetworks.com/Ubuntu xenial-backports main restricted universe multiverse
           deb http://security.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse
           deb http://archive.canonical.com/ubuntu/ xenial partner
           Active apt sources in file: /etc/apt/sources.list.d/ondrej-php-xenial.list
           deb http://ppa.launchpad.net/ondrej/php/ubuntu xenial main
           deb-src http://ppa.launchpad.net/ondrej/php/ubuntu xenial main
           Active apt sources in file: /etc/apt/sources.list.d/pavreh-git-cola-xenial.list
           deb http://ppa.launchpad.net/pavreh/git-cola/ubuntu xenial main
           deb-src http://ppa.launchpad.net/pavreh/git-cola/ubuntu xenial main
           Active apt sources in file: /etc/apt/sources.list.d/slack.list
           deb https://packagecloud.io/slacktechnologies/slack/debian/ jessie main
           Active apt sources in file: /etc/apt/sources.list.d/ubuntuhandbook1-audacity-xenial.list
           deb http://ppa.launchpad.net/ubuntuhandbook1/audacity/ubuntu xenial main
           deb-src http://ppa.launchpad.net/ubuntuhandbook1/audacity/ubuntu xenial main
           Active apt sources in file: /etc/apt/sources.list.d/vscode.list
           deb [arch=amd64,arm64,armhf] http://packages.microsoft.com/repos/code stable main
Info:      Processes: 230 Uptime: 6 min Memory: 2196.7/31613.4MB Init: systemd runlevel: 5 Gcc sys: 5.4.0
           Client: Shell (bash 4.3.481) inxi: 2.2.35 
+
Screen 0: minimum 320 x 200, current 5760 x 2160, maximum 16384 x 16384
eDP-1 connected 1920x1080+0+0 (0x48) normal (normal left inverted right x axis y axis) 344mm x 194mm
	Identifier: 0x43
	Timestamp:  23074
	Subpixel:   unknown
	Gamma:      1.0:1.0:1.0
	Brightness: 1.0
	Clones:    
	CRTC:       0
	CRTCs:      0 1 2 3
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID: 
		00ffffffffffff0009e5300600000000
		01190104952213780224109759548e27
		1e505400000001010101010101010101
		0101010101013c3780de703814403020
		360058c21000001a0000000000000000
		00000000000000000000000000fe0042
		4f452048460a202020202020000000fe
		004e5631353646484d2d4e34320a0099
	dithering depth: auto 
		supported: auto, 6 bpc, 8 bpc
	dithering mode: auto 
		supported: auto, off, static 2x2, dynamic 2x2, temporal
	scaling mode: None 
		supported: None, Full, Center, Full aspect
	color vibrance: 150 
		range: (0, 200)
	vibrant hue: 90 
		range: (0, 180)
	non-desktop: 0 
		range: (0, 1)
	link-status: Good 
		supported: Good, Bad
  1920x1080 (0x48) 141.400MHz +HSync -VSync *current +preferred
        h: width  1920 start 1968 end 2000 total 2142 skew    0 clock  66.01KHz
        v: height 1080 start 1083 end 1089 total 1100           clock  60.01Hz
  1920x1080 (0x49) 138.500MHz +HSync -VSync
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  66.59KHz
        v: height 1080 start 1083 end 1088 total 1111           clock  59.93Hz
  1680x1050 (0x4a) 146.357MHz -HSync +VSync
        h: width  1680 start 1784 end 1960 total 2240 skew    0 clock  65.34KHz
        v: height 1050 start 1053 end 1059 total 1089           clock  60.00Hz
  1680x1050 (0x4b) 146.250MHz -HSync +VSync
        h: width  1680 start 1784 end 1960 total 2240 skew    0 clock  65.29KHz
        v: height 1050 start 1053 end 1059 total 1089           clock  59.95Hz
  1680x1050 (0x4c) 119.000MHz +HSync -VSync
        h: width  1680 start 1728 end 1760 total 1840 skew    0 clock  64.67KHz
        v: height 1050 start 1053 end 1059 total 1080           clock  59.88Hz
  1600x1024 (0x4d) 103.125MHz +HSync +VSync
        h: width  1600 start 1600 end 1656 total 1664 skew    0 clock  61.97KHz
        v: height 1024 start 1024 end 1029 total 1030           clock  60.17Hz
  1400x1050 (0x4e) 122.000MHz +HSync +VSync
        h: width  1400 start 1488 end 1640 total 1880 skew    0 clock  64.89KHz
        v: height 1050 start 1052 end 1064 total 1082           clock  59.98Hz
  1400x1050 (0x4f) 121.790MHz -HSync +VSync
        h: width  1400 start 1488 end 1632 total 1864 skew    0 clock  65.34KHz
        v: height 1050 start 1053 end 1057 total 1089           clock  60.00Hz
  1280x1024 (0x50) 109.100MHz -HSync +VSync
        h: width  1280 start 1368 end 1496 total 1712 skew    0 clock  63.73KHz
        v: height 1024 start 1027 end 1034 total 1063           clock  59.95Hz
  1280x1024 (0x51) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1440x900 (0x52) 106.500MHz -HSync +VSync
        h: width  1440 start 1520 end 1672 total 1904 skew    0 clock  55.93KHz
        v: height  900 start  903 end  909 total  934           clock  59.89Hz
  1280x960 (0x53) 108.000MHz +HSync +VSync
        h: width  1280 start 1376 end 1488 total 1800 skew    0 clock  60.00KHz
        v: height  960 start  961 end  964 total 1000           clock  60.00Hz
  1280x960 (0x54) 101.344MHz -HSync +VSync
        h: width  1280 start 1360 end 1488 total 1696 skew    0 clock  59.75KHz
        v: height  960 start  963 end  967 total  996           clock  59.99Hz
  1360x768 (0x55) 84.750MHz -HSync +VSync
        h: width  1360 start 1432 end 1568 total 1776 skew    0 clock  47.72KHz
        v: height  768 start  771 end  781 total  798           clock  59.80Hz
  1360x768 (0x56) 72.000MHz +HSync -VSync
        h: width  1360 start 1408 end 1440 total 1520 skew    0 clock  47.37KHz
        v: height  768 start  771 end  781 total  790           clock  59.96Hz
  1152x864 (0x57) 81.768MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock  53.79KHz
        v: height  864 start  867 end  871 total  897           clock  59.97Hz
  1152x864 (0x58) 81.620MHz -HSync +VSync
        h: width  1152 start 1216 end 1336 total 1520 skew    0 clock  53.70KHz
        v: height  864 start  865 end  868 total  895           clock  60.00Hz
  1024x768 (0x59) 133.475MHz -HSync +VSync DoubleScan
        h: width  1024 start 1100 end 1212 total 1400 skew    0 clock  95.34KHz
        v: height  768 start  768 end  770 total  794           clock  60.04Hz
  1024x768 (0x5a) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  1024x768 (0x5b) 63.531MHz -HSync +VSync
        h: width  1024 start 1072 end 1176 total 1328 skew    0 clock  47.84KHz
        v: height  768 start  771 end  775 total  798           clock  59.95Hz
  960x720 (0x5c) 117.000MHz -HSync +VSync DoubleScan
        h: width   960 start 1024 end 1128 total 1300 skew    0 clock  90.00KHz
        v: height  720 start  720 end  722 total  750           clock  60.00Hz
  928x696 (0x5d) 109.150MHz -HSync +VSync DoubleScan
        h: width   928 start  976 end 1088 total 1264 skew    0 clock  86.35KHz
        v: height  696 start  696 end  698 total  719           clock  60.05Hz
  896x672 (0x5e) 102.400MHz -HSync +VSync DoubleScan
        h: width   896 start  960 end 1060 total 1224 skew    0 clock  83.66KHz
        v: height  672 start  672 end  674 total  697           clock  60.01Hz
  960x600 (0x5f) 77.000MHz +HSync -VSync DoubleScan
        h: width   960 start  984 end 1000 total 1040 skew    0 clock  74.04KHz
        v: height  600 start  601 end  604 total  617           clock  60.00Hz
  960x540 (0x60) 69.250MHz +HSync -VSync DoubleScan
        h: width   960 start  984 end 1000 total 1040 skew    0 clock  66.59KHz
        v: height  540 start  541 end  544 total  555           clock  59.99Hz
  800x600 (0x61) 81.000MHz +HSync +VSync DoubleScan
        h: width   800 start  832 end  928 total 1080 skew    0 clock  75.00KHz
        v: height  600 start  600 end  602 total  625           clock  60.00Hz
  800x600 (0x62) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  800x600 (0x63) 38.313MHz -HSync +VSync
        h: width   800 start  832 end  912 total 1024 skew    0 clock  37.42KHz
        v: height  600 start  603 end  607 total  624           clock  59.96Hz
  800x600 (0x64) 36.000MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock  35.16KHz
        v: height  600 start  601 end  603 total  625           clock  56.25Hz
  840x525 (0x65) 73.125MHz -HSync +VSync DoubleScan
        h: width   840 start  892 end  980 total 1120 skew    0 clock  65.29KHz
        v: height  525 start  526 end  529 total  544           clock  60.01Hz
  840x525 (0x66) 59.500MHz +HSync -VSync DoubleScan
        h: width   840 start  864 end  880 total  920 skew    0 clock  64.67KHz
        v: height  525 start  526 end  529 total  540           clock  59.88Hz
  800x512 (0x67) 51.562MHz +HSync +VSync DoubleScan
        h: width   800 start  800 end  828 total  832 skew    0 clock  61.97KHz
        v: height  512 start  512 end  514 total  515           clock  60.17Hz
  700x525 (0x68) 61.000MHz +HSync +VSync DoubleScan
        h: width   700 start  744 end  820 total  940 skew    0 clock  64.89KHz
        v: height  525 start  526 end  532 total  541           clock  59.98Hz
  640x512 (0x69) 54.000MHz +HSync +VSync DoubleScan
        h: width   640 start  664 end  720 total  844 skew    0 clock  63.98KHz
        v: height  512 start  512 end  514 total  533           clock  60.02Hz
  720x450 (0x6a) 53.250MHz -HSync +VSync DoubleScan
        h: width   720 start  760 end  836 total  952 skew    0 clock  55.93KHz
        v: height  450 start  451 end  454 total  467           clock  59.89Hz
  640x480 (0x6b) 54.000MHz +HSync +VSync DoubleScan
        h: width   640 start  688 end  744 total  900 skew    0 clock  60.00KHz
        v: height  480 start  480 end  482 total  500           clock  60.00Hz
  640x480 (0x6c) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz
  640x480 (0x6d) 23.975MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock  29.97KHz
        v: height  480 start  483 end  487 total  500           clock  59.94Hz
  720x400 (0x6e) 22.405MHz -HSync +VSync
        h: width   720 start  744 end  808 total  896 skew    0 clock  25.01KHz
        v: height  400 start  403 end  413 total  417           clock  59.97Hz
  680x384 (0x6f) 42.375MHz -HSync +VSync DoubleScan
        h: width   680 start  716 end  784 total  888 skew    0 clock  47.72KHz
        v: height  384 start  385 end  390 total  399           clock  59.80Hz
  680x384 (0x70) 36.000MHz +HSync -VSync DoubleScan
        h: width   680 start  704 end  720 total  760 skew    0 clock  47.37KHz
        v: height  384 start  385 end  390 total  395           clock  59.96Hz
  640x400 (0x71) 20.004MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock  25.00KHz
        v: height  400 start  403 end  409 total  417           clock  59.96Hz
  576x432 (0x72) 40.810MHz -HSync +VSync DoubleScan
        h: width   576 start  608 end  668 total  760 skew    0 clock  53.70KHz
        v: height  432 start  432 end  434 total  447           clock  60.06Hz
  640x350 (0x73) 17.522MHz -HSync +VSync
        h: width   640 start  664 end  720 total  800 skew    0 clock  21.90KHz
        v: height  350 start  353 end  363 total  366           clock  59.84Hz
  512x384 (0x74) 32.500MHz -HSync -VSync DoubleScan
        h: width   512 start  524 end  592 total  672 skew    0 clock  48.36KHz
        v: height  384 start  385 end  388 total  403           clock  60.00Hz
  400x300 (0x75) 20.000MHz +HSync +VSync DoubleScan
        h: width   400 start  420 end  484 total  528 skew    0 clock  37.88KHz
        v: height  300 start  300 end  302 total  314           clock  60.32Hz
  400x300 (0x76) 18.000MHz +HSync +VSync DoubleScan
        h: width   400 start  412 end  448 total  512 skew    0 clock  35.16KHz
        v: height  300 start  300 end  301 total  312           clock  56.34Hz
  320x240 (0x77) 12.587MHz -HSync -VSync DoubleScan
        h: width   320 start  328 end  376 total  400 skew    0 clock  31.47KHz
        v: height  240 start  245 end  246 total  262           clock  60.05Hz
DP-1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x44
	Timestamp:  23074
	Subpixel:   unknown
	Clones:    
	CRTCs:      0 1 2 3
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	dithering depth: auto 
		supported: auto, 6 bpc, 8 bpc
	dithering mode: auto 
		supported: auto, off, static 2x2, dynamic 2x2, temporal
	scaling mode: None 
		supported: None, Full, Center, Full aspect
	color vibrance: 150 
		range: (0, 200)
	vibrant hue: 90 
		range: (0, 180)
	underscan vborder: 0 
		range: (0, 128)
	underscan hborder: 0 
		range: (0, 128)
	underscan: off 
		supported: auto, off, on
	non-desktop: 0 
		range: (0, 1)
	link-status: Good 
		supported: Good, Bad
DP-2 connected 3840x2160+1920+0 (0x78) normal (normal left inverted right x axis y axis) 621mm x 341mm
	Identifier: 0x45
	Timestamp:  23074
	Subpixel:   unknown
	Gamma:      1.0:1.0:1.0
	Brightness: 1.0
	Clones:    
	CRTC:       1
	CRTCs:      0 1 2 3
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID: 
		00ffffffffffff0030aee66100000000
		351e0103803e2278eab4a5ad4f449e25
		0f5054a10800d100d1c0b30081c08180
		9500a9c081004dd000a0f0703e803020
		35006d552100001a000000fd00174c1e
		a03c000a202020202020000000fc004c
		454e20533238752d31300a20000000ff
		00564e4135434858370a202020200196
		02033bf14e61605f101f051404131211
		03020123097f07830100006b030c0010
		00303c2000200167d85dc401788003e2
		0f03681a00000101283ce6565e00a0a0
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	dithering depth: auto 
		supported: auto, 6 bpc, 8 bpc
	dithering mode: auto 
		supported: auto, off, static 2x2, dynamic 2x2, temporal
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		supported: None, Full, Center, Full aspect
	color vibrance: 150 
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	vibrant hue: 90 
		range: (0, 180)
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	link-status: Good 
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        h: width  3840 start 4016 end 4104 total 4400 skew    0 clock  67.50KHz
        v: height 2160 start 2168 end 2178 total 2250           clock  30.00Hz
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        h: width  3840 start 4016 end 4104 total 4400 skew    0 clock  67.43KHz
        v: height 2160 start 2168 end 2178 total 2250           clock  29.97Hz
  3840x2160 (0x7a) 262.750MHz +HSync -VSync
        h: width  3840 start 3888 end 3920 total 4000 skew    0 clock  65.69KHz
        v: height 2160 start 2163 end 2168 total 2191           clock  29.98Hz
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        h: width  2560 start 2608 end 2640 total 2720 skew    0 clock  98.71KHz
        v: height 1600 start 1603 end 1609 total 1646           clock  59.97Hz
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        h: width  2560 start 2608 end 2640 total 2720 skew    0 clock  88.79KHz
        v: height 1440 start 1443 end 1448 total 1481           clock  59.95Hz
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        v: height 1080 start 1084 end 1094 total 1125           clock  60.00Hz
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        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.72KHz
        v: height 1080 start 1084 end 1094 total 1125           clock  59.94Hz
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        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock  81.25KHz
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        v: height  900 start  903 end  909 total  926           clock  59.90Hz
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        h: width  1280 start 1376 end 1488 total 1800 skew    0 clock  60.00KHz
        v: height  960 start  961 end  964 total 1000           clock  60.00Hz
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        v: height  768 start  771 end  781 total  798           clock  59.80Hz
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        v: height  768 start  771 end  781 total  790           clock  59.96Hz
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        v: height  864 start  865 end  868 total  895           clock  60.00Hz
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        v: height  720 start  725 end  730 total  750           clock  60.00Hz
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        v: height  720 start  725 end  730 total  750           clock  50.00Hz
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        v: height  720 start  725 end  730 total  750           clock  59.94Hz
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        v: height  768 start  768 end  770 total  794           clock  60.04Hz
  1024x768 (0x95) 75.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1328 skew    0 clock  56.48KHz
        v: height  768 start  771 end  777 total  806           clock  70.07Hz
  1024x768 (0x5a) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
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        h: width   960 start 1024 end 1128 total 1300 skew    0 clock  90.00KHz
        v: height  720 start  720 end  722 total  750           clock  60.00Hz
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        v: height  696 start  696 end  698 total  719           clock  60.05Hz
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        h: width   896 start  960 end 1060 total 1224 skew    0 clock  83.66KHz
        v: height  672 start  672 end  674 total  697           clock  60.01Hz
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        v: height  600 start  601 end  604 total  617           clock  60.00Hz
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        v: height  540 start  541 end  544 total  555           clock  59.99Hz
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        v: height  600 start  600 end  602 total  625           clock  70.00Hz
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        h: width   800 start  832 end  928 total 1080 skew    0 clock  81.25KHz
        v: height  600 start  600 end  602 total  625           clock  65.00Hz
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        h: width   800 start  832 end  928 total 1080 skew    0 clock  75.00KHz
        v: height  600 start  600 end  602 total  625           clock  60.00Hz
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        v: height  600 start  601 end  603 total  625           clock  56.25Hz
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        v: height  480 start  489 end  495 total  525           clock  59.94Hz
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        v: height  512 start  512 end  514 total  533           clock  60.02Hz
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        v: height  480 start  480 end  482 total  500           clock  60.00Hz
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        v: height  480 start  490 end  492 total  525           clock  60.00Hz
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        v: height  480 start  490 end  492 total  525           clock  59.94Hz
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DP-3 disconnected (normal left inverted right x axis y axis)
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	Timestamp:  23074
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		range: (0, 1)
	link-status: Good 
		supported: Good, Bad
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roblm
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Re: Hardware refresh rate spec differs from actual in xrandr

Post by roblm »

I’m not sure from looking at the inxi output if the Nvidia driver is loading. To verify this, Use this command to upload the Xorg.0.log file to terminal.com pastebin:
cat /var/log/Xorg.0.log | nc termbin.com 9999

Post the URL address that displays in the Terminal window.
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SMG
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Location: USA

Re: Hardware refresh rate spec differs from actual in xrandr

Post by SMG »

steveplatz wrote: ⤴Wed Apr 14, 2021 2:03 pm I just hooked up a new ThinkVision S28u-10 to my ThinkPad P50 via the supplied HDMI. I changed my graphics driver to NVDIA-384 because there were issues getting the monitor to work at all as an external display. The products specs list the resolution at 3840 x 2160 and refresh rate at 60 Hz, but I'm not able to use a refresh rate > 30 Hz
Sometimes these types of issues can be fixed with BIOS/UEFI updates. The BIOS Update (Utility & Bootable CD) for Windows 10 (64-bit), 8.1 (64-bit), 7 (64-bit) and Linux - ThinkPad P50 indicates the latest is version 1.63.

Machine: System: LENOVO (portable) product: 20EN0013US v: ThinkPad P50
Mobo: LENOVO model: 20EN0013US v: SDK0J40705 WIN Bios: LENOVO v: N1EET70W (1.43 ) date: 07/12/2017

While checking the ReadMe for BIOS Update Utility (Linux), I noticed version 1.57 lists
"- (Fix) Fixed an issue where the display audio feature on the HDMI monitor might not work when the "Graphics Device" setting was [Discrete Graphics] in Thinkpad Setup."

which seems to indicate this is an Optimus-style laptop. So I checked the ThinkPad P50 Platform Specifications and found:
"Max resolution:
3840x2160@60Hz (DisplayPort via Mini DisplayPort cable);
3840x2160@60Hz (Thunderbolt);
3840x2160@30Hz (HDMI)"

You indicated you are using the supplied HDMI cable, so maybe that is why you are getting 30Hz given that is the listed max in the specs?
(I presume you have the BIOS set to Discrete given the inxi output only shows the Nvidia card.)

FYI-1: The NVIDIA Quadro M1000M is still supported and the latest driver available for it is the Nvidia-460.

FYI-2: Support for LM18 (all versions) ends in two weeks (April 2021).
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steveplatz
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Re: Hardware refresh rate spec differs from actual in xrandr

Post by steveplatz »

@smg super helpful, you're right, I need to use a DP cable for 60 Hz, which I've done - Thanks! However, I'm unable to update my BIOS following the installation instructions on Lenovo Support for the current BIOS utility.

Code: Select all

fwupdmgr install N1EET90W.cab
Decompressing…         
no attached hardware matched ddc0ee61-e7f0-4e7d-acc5-c070a398838e
I've also realized that I can't set my current BIOS to Discrete and have both displays work, the display on my laptop is completely black in that mode. The only outstanding issue I'm trying to fix is my mouse leaves trails if I'm not using Discrete, something that is of course fixed in later version of LM, which I've tested on a USB stick to verify. That probably means that the provided graphics driver is the later version. I guess I should just plan to update LM sooner than later.
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SMG
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Re: Hardware refresh rate spec differs from actual in xrandr

Post by SMG »

steveplatz wrote: ⤴Fri Apr 16, 2021 11:37 am @smg super helpful, you're right, I need to use a DP cable for 60 Hz, which I've done - Thanks!
If the issue in the title of the thread has been resolved, please go to the first post in the thread and click the pencil icon to edit the title and add [SOLVED] to the beginning. That lets others with a similar issue know a solution is in the thread.
steveplatz wrote: ⤴Fri Apr 16, 2021 11:37 amHowever, I'm unable to update my BIOS following the installation instructions on Lenovo Support for the current BIOS utility.

Code: Select all

fwupdmgr install N1EET90W.cab
Decompressing…         
no attached hardware matched ddc0ee61-e7f0-4e7d-acc5-c070a398838e
Lenovo has a community support forum. I don't necessarily see an answer to the question on this thread Lenovo P50 how to upgrade BIOS, but maybe there are other threads on that forum with something which will help you.
steveplatz wrote: ⤴Fri Apr 16, 2021 11:37 amI've also realized that I can't set my current BIOS to Discrete and have both displays work, the display on my laptop is completely black in that mode.
Sounds like you may have confirmed only the Intel is wired to the laptop display. Many dual graphics laptops do not have both graphics cards wired to both the laptop display and external graphics ports.
steveplatz wrote: ⤴Fri Apr 16, 2021 11:37 amThe only outstanding issue I'm trying to fix is my mouse leaves trails if I'm not using Discrete, something that is of course fixed in later version of LM, which I've tested on a USB stick to verify. That probably means that the provided graphics driver is the later version. I guess I should just plan to update LM sooner than later.
Most of the versions run from the ISO run using Intel mode. Intel has continued to update the i915 driver, so that may be the difference you see. Or it could be the other files which related to graphics in Mint which have been updated in newer versions.

In order to be able to use switchable graphics (Intel and Nvidia), you will want to make sure you have the BIOS/UEFI set to switchable/hybrid (or whatever term is used) and not Discrete so the necessary files to support switchable graphics are installed.
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steveplatz
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Re: [SOLVED]Hardware refresh rate spec differs from actual in xrandr

Post by steveplatz »

Thanks, I've marked the issue as SOLVED. Now I ned to search for solutions to upgrading BIOS, I've started a thread in the Lenovo community forums, but generally I think there may be an issue preventing me from upgrading in legacy mode, rather than UEFI mode.
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