Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Screen resolution, 3D Acceleration, nVidia, ATI
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PMLakeman
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Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by PMLakeman » Mon Dec 02, 2019 6:14 am

Hello,

I just switched from Win 10 to Linux Mint Mate 19.2 64 bit.

Now I have a problem with the graphic card (AMD Radeon HD 6670) and the monitor scaling.
I wanted to change the resolution of the open source driver from 1400x 1050 to 1920x1080.
According to xrandr the card is named DEFAULT

My screen is a Medion Life X55000 (MD 20144) with a possible resolution of 1920 x 1080.
The problem is that the screen uses the 1400x1050 resolution and the Monitor display is at fullscreen mode.
Only when setting the aspect ratio to 4:3, I have a normal sharp image, but with black edges.

I wanted to change the internal aspect ratio to 1920x1080, but the card doesn't work here.

Installed driver: xserver-xorg-video-ati Version 1:18.0.1-1X Org Server --AMD/ATI display driver wrapper

Some details:

Code: Select all

lakeman@lakeman-MS-7728:~$ inxi -Fz
System:
  Host: lakeman-MS-7728 Kernel: 4.15.0-70-generic x86_64 bits: 64 
  Desktop: MATE 1.22.0 Distro: Linux Mint 19.2 Tina 
Machine:
  Type: Desktop Mobo: MEDIONPC model: MS-7728 v: 2.0 serial: <filter> 
  BIOS: American Megatrends v: E7728MLN.206 date: 05/10/2011 
CPU:
  Topology: Dual Core model: Intel Core i3-2100 bits: 64 type: MT MCP 
  L2 cache: 3072 KiB 
  Speed: 1596 MHz min/max: 1600/3100 MHz Core speeds (MHz): 1: 3091 2: 2092 
  3: 1811 4: 2469 
Graphics:
  Device-1: AMD Turks XT [Radeon HD 6670/7670] driver: N/A 
  Display: x11 server: X.Org 1.19.6 driver: ati,fbdev 
  unloaded: modesetting,radeon,vesa resolution: 1400x1050~77Hz 
  OpenGL: renderer: llvmpipe (LLVM 8.0 256 bits) v: 3.3 Mesa 19.0.8 
Audio:
  Device-1: Intel 6 Series/C200 Series Family High Definition Audio 
  driver: snd_hda_intel 
  Device-2: AMD Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series] 
  driver: snd_hda_intel 
  Device-3: Yamaha type: USB driver: snd-usb-audio 
  Sound Server: ALSA v: k4.15.0-70-generic 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  driver: r8169 
  IF: enp4s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
  Device-2: IMC Networks Mediao 802.11n WLAN [Realtek RTL8191SU] type: USB 
  driver: r8712u 
  IF: wlxe0b9a5907d0d state: up mac: <filter> 
Drives:
  Local Storage: total: 4.09 TiB used: 2.01 TiB (49.0%) 
  ID-1: /dev/sda vendor: Western Digital model: WD15EARS-00MVWB0 
  size: 1.36 TiB 
  ID-2: /dev/sdb type: USB vendor: Seagate model: ST1000DM003-9YN162 
  size: 931.51 GiB 
  ID-3: /dev/sdc type: USB vendor: Western Digital model: WD Elements 25A1 
  size: 1.82 TiB 
Partition:
  ID-1: / size: 1.34 TiB used: 50.06 GiB (3.6%) fs: ext4 dev: /dev/sda1 
Sensors:
  System Temperatures: cpu: 37.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 186 Uptime: 8m Memory: 3.84 GiB used: 871.5 MiB (22.2%) 
  Shell: bash inxi: 3.0.32 
lakeman@lakeman-MS-7728:~$

Code: Select all

lakeman@lakeman-MS-7728:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1400 x 1050, current 1400 x 1050, maximum 1400 x 1050
default connected 1400x1050+0+0 0mm x 0mm
   1400x1050     77.00* 
lakeman@lakeman-MS-7728:~$ 

I tryed the following:

Code: Select all

lakeman@lakeman-MS-7728:~$ cvt 1920 1080 60
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync
lakeman@lakeman-MS-7728:~$ xrandr --newmode "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync
xrandr: Failed to get size of gamma for output default
lakeman@lakeman-MS-7728:~$ xrandr --addmode default "1920x1080_60.00"
xrandr: Failed to get size of gamma for output default
lakeman@lakeman-MS-7728:~$ xrandr --output default --mode "1920x1080_60.00"
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed
lakeman@lakeman-MS-7728:~$ 
At the end is xrandr: Configure crtc 0 failed

I can select the new resolution, but the following message appears
"Configuration for CRTC "678" could not be applied.
The screen remains unchanged.

How to solve this one?

Many thanks and regards
Lakeman

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roblm
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by roblm » Wed Dec 04, 2019 2:37 pm

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 link that displays in the Terminal window.

Use the Mint installation USB / DVD to run a live session. Get the output of inxi -Gx and post it.

PMLakeman
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by PMLakeman » Wed Dec 04, 2019 7:20 pm

@robim
The link is: https://termbin.com/sp6a

Output inxi -Gx

Code: Select all

inxi -Gx
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Turks XT [Radeon HD 6670/7670] vendor: Micro-Star MSI driver: N/A 
           bus ID: 01:00.0 
           Display: x11 server: X.Org 1.19.6 driver: vesa unloaded: fbdev,modesetting resolution: 1400x1050~N/A 
           OpenGL: renderer: llvmpipe (LLVM 8.0 256 bits) v: 3.3 Mesa 19.0.8 direct render: Yes 

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roblm
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by roblm » Wed Dec 04, 2019 8:38 pm

Are you sure the Xorg.0.log was from the actual Mint installation? It shows the parameter nomodeset is being used. Is it needed to boot to the desktop? If no, then open the grub file:
xed admin:///etc/default/grub

Remove nomodest and then update grub: sudo update-grub

Reboot.

PMLakeman
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by PMLakeman » Thu Dec 05, 2019 4:25 pm

@robim
This is the current link and inxi -Gx
https://termbin.com/2009

Code: Select all

inxi -Gx
Graphics:
  Device-1: AMD Turks XT [Radeon HD 6670/7670] vendor: Micro-Star MSI 
  driver: N/A bus ID: 01:00.0 
  Display: x11 server: X.Org 1.19.6 driver: ati,fbdev 
  unloaded: modesetting,radeon,vesa resolution: 1400x1050~77Hz 
  OpenGL: renderer: llvmpipe (LLVM 8.0 256 bits) v: 3.3 Mesa 19.0.8 
  direct render: Yes 
I wonder why there is driver: N/A mentioned. Preferred screen resolution would be 1920x1080 60 Hz

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roblm
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by roblm » Thu Dec 05, 2019 4:53 pm

The last log file shows the parameter radeon.modeset=0 being used, which has the same effect as nomodeset. Open the grub file and remove it and update grub, as instructed in my previous post.

PMLakeman
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by PMLakeman » Fri Dec 06, 2019 3:25 am

@roblm: Thanks for your answer.

I will update GRUB as you suggested.
Browsing the web concerning this issue is quite confusing to me, sorry. How do we get the card working with the 1920x1080 resolution?

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roblm
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Re: Wrong Monitor scaling (only recognized as default) AMD Radeon HD 6670

Post by roblm » Fri Dec 06, 2019 9:40 am

Using nomodeset or radeon.modeset=0 prevents the preferred radeon driver from loading. The resolution problem will probably be solved with that driver working.

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