Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

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Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

Greetings, I recently switched from Windows to Linux Mint and realized that something was off. I couldn't get 60hz no matter what I tried. I tried downloading the latest graphics drivers and I can't switch from 30hz to 60hz in Display or Nvidia X Server Settings though my monitor supports it. Help would very much be appreciated.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by SMG »

Welcome to the forum, n00b5.

Please give us information about your install by entering this command in a terminal: inxi -Fxxxrz
Click </> from the mini toolbar above the textbox where you type your reply and then place your cursor between the code markers and paste the results of the command between the code markers [code]Results[/code]. This will let us know how Mint sees your hardware.

Please also supply the output of xrandr --verbose and enclose the results between code markers.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

Code: Select all

ystem:
  Kernel: 5.4.0-70-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: Cinnamon 4.8.6 wm: muffin 4.8.1 dm: LightDM 1.30.0 
  Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal 
Machine:
  Type: Desktop System: Exertis_CapTech product: MS-7998 v: 1.0 
  serial: <filter> 
  Mobo: MSI model: Z170A-S02 (MS-7998) v: 1.0 serial: <filter> 
  UEFI: American Megatrends v: 3.A0 date: 12/28/2016 
CPU:
  Topology: Quad Core model: Intel Core i5-6400 bits: 64 type: MCP 
  arch: Skylake-S rev: 3 L2 cache: 6144 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 21599 
  Speed: 800 MHz min/max: 800/3300 MHz Core speeds (MHz): 1: 800 2: 800 
  3: 800 4: 800 
Graphics:
  Device-1: NVIDIA GP106 [GeForce GTX 1060 6GB] vendor: Micro-Star MSI 
  driver: nvidia v: 460.39 bus ID: 01:00.0 chip ID: 10de:1c03 
  Display: x11 server: X.Org 1.20.9 driver: nvidia 
  unloaded: modesetting,nouveau,vesa alternate: fbdev 
  resolution: 2560x1440~60Hz 
  OpenGL: renderer: GeForce GTX 1060 6GB/PCIe/SSE2 v: 4.6.0 NVIDIA 460.39 
  direct render: Yes 
Audio:
  Device-1: Intel 100 Series/C230 Series Family HD Audio 
  vendor: Micro-Star MSI driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
  chip ID: 8086:a170 
  Device-2: NVIDIA GP106 High Definition Audio vendor: Micro-Star MSI 
  driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 10de:10f1 
  Device-3: Razer USA Razer Kraken 7.1 Chroma type: USB 
  driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-6:5 chip ID: 1532:0504 
  Sound Server: ALSA v: k5.4.0-70-generic 
Network:
  Device-1: Intel Ethernet I219-V vendor: Micro-Star MSI driver: e1000e 
  v: 3.2.6-k port: f000 bus ID: 00:1f.6 chip ID: 8086:15b8 
  IF: enp0s31f6 state: up speed: 1000 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 3.41 TiB used: 82.03 GiB (2.3%) 
  ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB 
  speed: 6.0 Gb/s serial: <filter> rev: 2B6Q scheme: GPT 
  ID-2: /dev/sdb vendor: Western Digital model: WDS500G2B0A-00SM50 
  size: 465.76 GiB speed: 6.0 Gb/s serial: <filter> rev: 00WD scheme: GPT 
  ID-3: /dev/sdc vendor: Western Digital model: WD10EURX-63C57Y0 
  size: 931.51 GiB speed: 6.0 Gb/s rotation: 5400 rpm serial: <filter> 
  rev: 1A01 scheme: GPT 
  ID-4: /dev/sdd vendor: Seagate model: ST2000DM006-2DM164 size: 1.82 TiB 
  speed: 6.0 Gb/s rotation: 7200 rpm serial: <filter> rev: CC26 scheme: GPT 
Partition:
  ID-1: / size: 456.94 GiB used: 82.00 GiB (17.9%) fs: ext4 dev: /dev/sdb3 
Sensors:
  System Temperatures: cpu: 29.8 C mobo: 28.5 C gpu: nvidia temp: 29 C 
  Fan Speeds (RPM): N/A gpu: nvidia fan: 49% 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/additional-repositories.list 
  1: deb https://dl.winehq.org/wine-builds/ubuntu/ focal main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com ulyssa main upstream import backport #id:linuxmint_main
  2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
  3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
  4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ focal partner
  Active apt repos in: /etc/apt/sources.list.d/qbittorrent-team-qbittorrent-stable-focal.list 
  1: deb http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/steam.list 
  1: deb [arch=amd64,i386] https://repo.steampowered.com/steam/ stable steam
  2: deb-src [arch=amd64,i386] https://repo.steampowered.com/steam/ stable steam
Info:
  Processes: 220 Uptime: 3m Memory: 23.45 GiB used: 1.60 GiB (6.8%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: gnome-terminal inxi: 3.0.38
  
  Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
DVI-D-0 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x1bd
	Timestamp:  150469
	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: 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: DVI-D 
	ConnectorNumber: 0 
	_ConnectorLocation: 0 
	non-desktop: 0 
		supported: 0, 1
HDMI-0 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x1be
	Timestamp:  150469
	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: 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: HDMI 
	ConnectorNumber: 3 
	_ConnectorLocation: 3 
	non-desktop: 0 
		supported: 0, 1
DP-0 connected primary 2560x1440+0+0 (0x1c2) normal (normal left inverted right x axis y axis) 596mm x 335mm
	Identifier: 0x1bf
	Timestamp:  150469
	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: 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	EDID: 
		00ffffffffffff0006b3a127c49c0000
		0e1b0104b53c22783b4dd5a7554a9d24
		0e5054a32800d1c0814081809500b300
		81c0810001014dd000a0f0703e803020
		3500544f2100001aa36600a0f0701f80
		30203500544f2100001a000000fd0023
		3c87873c010a202020202020000000fc
		00415355532050423237550a2020017f
		020319714c0203111213041f900e0f1d
		1e2309170783010000565e00a0a0a029
		5030203500544f2100001ee26800a0a0
		402e6030203600544f2100001ad60980
		a0205e63103060b20c544f2100001a00
		00000000000000000000000000000000
		00000000000000000000000000000000
		000000000000000000000000000000c5
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: DisplayPort 
		supported: DisplayPort
	ConnectorType: DisplayPort 
	ConnectorNumber: 4 
	_ConnectorLocation: 4 
	non-desktop: 0 
		supported: 0, 1
  3840x2160 (0x1c0) 262.750MHz +HSync -VSync +preferred
        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
  2560x1600 (0x1c1) 268.500MHz +HSync -VSync
        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
  2560x1440 (0x1c2) 241.500MHz +HSync +VSync *current
        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
  1920x1080 (0x1c3) 148.500MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
  1920x1080 (0x1c4) 148.350MHz +HSync +VSync
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.43KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  59.94Hz
  1920x1080 (0x1c5) 148.500MHz +HSync +VSync
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  56.25KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  50.00Hz
  1680x1050 (0x1c6) 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
  1440x900 (0x1c7) 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
  1440x576 (0x1c8) 54.000MHz -HSync +VSync
        h: width  1440 start 1464 end 1592 total 1728 skew    0 clock  31.25KHz
        v: height  576 start  581 end  586 total  625           clock  50.00Hz
  1440x480 (0x1c9) 54.000MHz -HSync -VSync
        h: width  1440 start 1472 end 1596 total 1716 skew    0 clock  31.47KHz
        v: height  480 start  489 end  495 total  525           clock  59.94Hz
  1280x1024 (0x1ca) 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
  1280x960 (0x1cb) 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
  1280x800 (0x1cc) 83.500MHz -HSync +VSync
        h: width  1280 start 1352 end 1480 total 1680 skew    0 clock  49.70KHz
        v: height  800 start  803 end  809 total  831           clock  59.81Hz
  1280x720 (0x1cd) 74.250MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  45.00KHz
        v: height  720 start  725 end  730 total  750           clock  60.00Hz
  1280x720 (0x1ce) 74.180MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  44.96KHz
        v: height  720 start  725 end  730 total  750           clock  59.94Hz
  1280x720 (0x1cf) 74.250MHz +HSync +VSync
        h: width  1280 start 1720 end 1760 total 1980 skew    0 clock  37.50KHz
        v: height  720 start  725 end  730 total  750           clock  50.00Hz
  1024x768 (0x1d0) 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
  800x600 (0x1d1) 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 (0x1d2) 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
  720x576 (0x1d3) 27.000MHz -HSync -VSync
        h: width   720 start  732 end  796 total  864 skew    0 clock  31.25KHz
        v: height  576 start  581 end  586 total  625           clock  50.00Hz
  720x480 (0x1d4) 27.000MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.47KHz
        v: height  480 start  489 end  495 total  525           clock  59.94Hz
  640x480 (0x1d5) 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
  640x350 (0x1d6) 25.180MHz +HSync -VSync
        h: width   640 start  688 end  784 total  800 skew    0 clock  31.48KHz
        v: height  350 start  409 end  411 total  449           clock  70.10Hz
DP-1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x1d7
	Timestamp:  150469
	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: 
	CTM: 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 
		0 1 
	CscMatrix: 65536 0 0 0 0 65536 0 0 0 0 65536 0 
	BorderDimensions: 4 
		supported: 4
	Border: 0 0 0 0 
		range: (0, 65535)
	SignalFormat: TMDS 
		supported: TMDS
	ConnectorType: DisplayPort 
	ConnectorNumber: 4 
	_ConnectorLocation: 4 
	non-desktop: 0 
		supported: 0, 1
Right now I'm running on 1440p @60hz but I really wanna use the full capacity of my monitor because that's what I bought it for. Thanks in advance. Yes 60hz is supported for my monitor( I could do it and still can do it on Windows without any problems).
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SMG
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by SMG »

The xrandr info does confirm what you are seeing.

Code: Select all

  3840x2160 (0x1c0) 262.750MHz +HSync -VSync +preferred
        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

  2560x1440 (0x1c2) 241.500MHz +HSync +VSync *current
        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
The only suggestion I have is to try the Nvidia-450 driver and see if that provides the higher refresh rate.

There are others on the forum who are better with this type of issue than I am. Maybe they will be able to provide a better solution.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by roblm »

Some additional info needs to be obtained. Use this command to create an xorg.conf file:
sudo touch /etc/X11/xorg.conf

Open the file for editing: xed admin:///etc/X11/xorg.conf

Add these lines:

Code: Select all

Section "Device"
   Identifier   "Device0"
   Driver   "nvidia"   			
   Option "ModeDebug" "true"
EndSection
Log out and back in. 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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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

https://termbin.com/7ukfl
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by roblm »

Some error must have been made. The log should list a lot more info on video modes. The xorg.conf file was created but perhaps it has an error. Open the file and post it’s contents: xed /etc/X11/xorg.conf

Did you log out and back in before uploading the file?
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

Code: Select all

https://termbin.com/3ymh
Sorry, I forgot to log out and in, but now it should be correct.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by roblm »

These lines are in the log:

Code: Select all

Validating Mode "3840x2160_60":
[   122.544] (WW) NVIDIA(GPU-0):     Mode Source: EDID
[   122.544] (WW) NVIDIA(GPU-0):     3840 x 2160 @ 60 Hz
[   122.544] (WW) NVIDIA(GPU-0):       Pixel Clock      : 533.25 MHz
[   122.544] (WW) NVIDIA(GPU-0):       HRes, HSyncStart : 3840, 3888
[   122.544] (WW) NVIDIA(GPU-0):       HSyncEnd, HTotal : 3920, 4000
[   122.544] (WW) NVIDIA(GPU-0):       VRes, VSyncStart : 2160, 2163
[   122.544] (WW) NVIDIA(GPU-0):       VSyncEnd, VTotal : 2168, 2222
[   122.544] (WW) NVIDIA(GPU-0):       Sync Polarity    : +H -V 
[   122.544] (WW) NVIDIA(GPU-0):     The EDID for AUS ASUS PB27U (DP-0) contradicts itself:
[   122.544] (WW) NVIDIA(GPU-0):     mode "3840x2160" is specified in the EDID; however, the
[   122.544] (WW) NVIDIA(GPU-0):     EDID's valid HorizSync range (135.000 kHz) would exclude
[   122.544] (WW) NVIDIA(GPU-0):     this mode's HorizSync (133.313 kHz); ignoring HorizSync
[   122.544] (WW) NVIDIA(GPU-0):     check for mode "3840x2160".
[   122.544] (WW) NVIDIA(GPU-0):     Mode is rejected: DP Bandwidth check failed.
[   122.544] (WW) NVIDIA(GPU-0):     GPU extended capability check failed.
[   122.544] (WW) NVIDIA(GPU-0):     Mode "3840x2160_60" is invalid.
Open the xorg.conf file: xed admin:///etc/X11/xorg.conf
Remove all the lines and then add these:

Code: Select all

Section "Device"
   Identifier   "Device0"
   Driver   "nvidia"   			
   Option "ModeDebug" "true"
EndSection

Section "Screen"
   Identifier   "Screen0"
   Device   "Device0"
   Monitor   "Monitor0"
   DefaultDepth   24
   Option "ModeValidation" "NoDisplayPortBandwidthCheck, NoExtendedGpuCapabilitiesCheck"
EndSection
Log out and back in. If the 60 Hz refresh rate is not used, then upload the Xorg.0.log again.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

That didn’t work. My screen just shut down when I logged down so I restarted and and after I restarted I chose Linux mint again and the screen still shut down. On the boot menu log thing it said something like “frequency can’t be used” before the screen shut down. Idk how to get back into my machine now.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by roblm »

Press Ctrl+Alt+F1 to enter virtual console tty1. Use this command to remove the xorg.conf file and reboot:
sudo rm /etc/X11/xorg.conf; reboot

If you can't enter tty1, then select Advanced options > Recovery Mode at the GRUB boot menu. If no menu shows, then hold down the Shift key while starting, or keep tapping it, or tap the Esc key. In the menu, select “root - drop to root shell prompt ” and press ENTER. Press ENTER again.

Use this command to change the file permissions to read and write: mount -o remount,rw /

Remove the xorg.conf file and reboot: rm /etc/X11/xorg.conf; reboot


This info is extracted from the monitor’s EDID, which comes from the xrandr --verbose output:
Monitor ranges (bare limits): 35-60Hz V, 135-135kHz H, max dotclock 600MHz
The Horizontal frequency is only listed as 135 kHz, which is incorrect. There should be a range of values, just the same as for the Vertical frequency, which is 35-60 Hz.

These values are from ASUS:
Digital Signal Frequency : 24~160 KHz (H) / 23~80 Hz (V)
https://www.asus.com/Displays-Desktops/ ... /techspec/


Try repeating the previous steps in creating the xorg.conf file but use these lines:

Code: Select all

Section "Monitor"
   Identifier    "Monitor0"
   HorizSync      24.0 - 160.0 	   
   VertRefresh    23.0 - 80.0
EndSection

Section "Device"
   Identifier   "Device0"
   Driver   "nvidia"   			
   Option "UseEdidFreqs" "false" 
   Option "ModeDebug" "true"
EndSection

Section "Screen"
   Identifier   "Screen0"
   Device   "Device0"
   Monitor   "Monitor0"
   DefaultDepth   24
   Option "ModeValidation" "NoDisplayPortBandwidthCheck, NoExtendedGpuCapabilitiesCheck"
EndSection
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

Sorry for the late reply. I’m not sure you’re still here but I kind of gave up trying after the first error but now I decided to try again but I’m sorry to say that the most recent solution you gave me didn’t work either. Thanks in advance if you still want to help me. I guess I have to get used to a blurrier resolution on my screen until new drivers hopefully will fix this problem, whenever that may be, or maybe I will just switch back to Windows for the time being. Thanks for everything that have tried helping me through so far.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by roblm »

Repeat the steps in my previous post and upload the Xorg.0.log.
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Re: Can't get 60hz on Displayport with 4k monitor (PB27UQ - Asus)

Post by n00b5 »

I don’t understand (｀_´)ゞ. I’m so frustrated right now. I even got a new 3070 graphics card and re-download both Linux Mint and my graphics drivers and that didn’t help it either. :cry: :cry: I really want to enjoy Linux since I hate Window’s spying.
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