Arch Linux

Chagatay

Member

Registered: 2022-12-30

Posts: 4

Monitor powers off on loading screens display back on as pixelated

For a while now, when I play a game and encounter a loading screen or there are a lot of entities on the screen my monitor turns off and turns back on again. I know the game is going on in the background while the monitor is black and if I screenshot when the screen is black it actually gives me what should be displayed on the screen.  Rarely the display comes back broken up into off-center quadrants with the  bottom-right quadrant going to the top-left and glitching with yellow and green horizontal lines over the screen. More often it becomes pixelated permanently until the monitor powers off again. This has made many games unplayable on Arch for me, such as TF2, for example.

My monitor is a BenQ EX2710S.

Here's the output of 'xrandr -q':

Screen 0: minimum 16 x 16, current 1920 x 1080, maximum 32767 x 32767
XWAYLAND0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 600mm x 340mm
   1920x1080     59.96*+
   1440x1080     59.99
   1400x1050     59.98
   1280x1024     59.89
   1280x960      59.94
   1152x864      59.96
   1024x768      59.92
   800x600       59.86
   640x480       59.38
   320x240       59.52
   1680x1050     59.95
   1440x900      59.89
   1280x800      59.81
   720x480       59.71
   640x400       59.95
   320x200       58.96
   1600x900      59.95
   1368x768      59.88
   1280x720      59.86
   1024x576      59.90
   864x486       59.92
   720x400       59.55
   640x350       59.77

This issue seems to be independent of whether I'm using X11 or Wayland. I've tried both.

Last edited by Chagatay (2023-01-06 09:25:15)

cfr

Member

From: Cymru

Registered: 2011-11-27

Posts: 7,171

Re: Monitor powers off on loading screens display back on as pixelated

Please edit your post to use [ code ] [ /code ] tags. What graphics card, drivers etc. are you using? I'd suggest posting the journal from a boot when the issue occurs. If using X, post the Xorg log, too. (I don't know what the equivalent is for Wayland.)

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V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,206

Re: Monitor powers off on loading screens display back on as pixelated

Sounds cable. Test a different cable.

Chagatay

Member

Registered: 2022-12-30

Posts: 4

Re: Monitor powers off on loading screens display back on as pixelated

Please edit your post to use [ code ] [ /code ] tags. What graphics card, drivers etc. are you using? I'd suggest posting the journal from a boot when the issue occurs. If using X, post the Xorg log, too. (I don't know what the equivalent is for Wayland.)

It's not a cable issue. This seems to be triggered by software. Whenever something computationally intensive is going on the display powers off. I can consistently trigger the display power off in many different applications. I've also noticed that if I tab out in KDE and look at the preview of the application the black screen does not occur.

I'm using RX 6600 XT and I have mesa 22.3.2-1 installed. I also have xf86-video-amdgpu 22.0.0-1 and vulkan-radeon 22.3.2-1.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,732

Re: Monitor powers off on loading screens display back on as pixelated

Power management.
Try to enforce a higher profile and/or disable runtime power management
https://wiki.archlinux.org/title/AMDGPU#Power_profiles

amdgpu.dpm=0 amdgpu.aspm=0 amdgpu.runpm=0 amdgpu.bapm=0 pcie_aspm=0

(dpm=0 might cause the GPU to fail entirely, use the kernel commandline editor in your bootmanager)
https://wiki.archlinux.org/title/Kernel_parameters

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Chagatay

Member

Registered: 2022-12-30

Posts: 4

Re: Monitor powers off on loading screens display back on as pixelated

Power management.
Try to enforce a higher profile and/or disable runtime power management
https://wiki.archlinux.org/title/AMDGPU#Power_profiles

amdgpu.dpm=0 amdgpu.aspm=0 amdgpu.runpm=0 amdgpu.bapm=0 pcie_aspm=0

(dpm=0 might cause the GPU to fail entirely, use the kernel commandline editor in your bootmanager)
https://wiki.archlinux.org/title/Kernel_parameters

Hi, thanks that does seem very likely to be the issue. I don't know which file exactly is supposed to tell you the current state but I was curious to try to find it and I checked /sys/class/drm/card0/device/pp_cur_state and that is 0.

I also checked /sys/class/drm/card0/device/pp_table and that is just a long string of gibberish. I don't know if it's supposed to look like that.

chagatay@archbox ~ % cat /sys/class/drm/card0/device/pp_table
R       "	"Cv
 *a<<,N
              N
               N
nndddddddddd2




____rrllltdndssss

h8?2d

      2h77



            ?8	>.(??H>X:V>q=?(>R
?>a?\>(>@;B`?><?J>R]>(>@;B`?><?J>R]>?>
                                                   +;q=
?>?sh>;/?]>?sh>;/?]>7?:?Di>9?,?sh>;/?]>R
                                                      <a,*0?K=Ujv0?K=Ujv0?K=Ujvb?#=.&?m=,>R
                                                                                                    L


 ]Q]hs~
          n

W)羾Xp_T
                 Xޓ@rh>)\T
                             T


                            dd7	
7	
hH
   t2W+entoidgai atMemryn$mL+T_MEM1 nCnrol annZ%

Update:

I've ran 2 boots with the above mentioned kernel parameters. One with amdgpu.dpm=0 which did indeed cause the GPU to fail and one without it. The problem persists. There's no difference in how the display power off is behaving.

Last edited by Chagatay (2023-01-06 10:44:55)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,732

Re: Monitor powers off on loading screens display back on as pixelated

That's binary data, https://docs.kernel.org/gpu/amdgpu/ther … l#pp-table
Why are you looking at it, did you check the link I posted?

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Chagatay

Member

Registered: 2022-12-30

Posts: 4

Re: Monitor powers off on loading screens display back on as pixelated

That's binary data, https://docs.kernel.org/gpu/amdgpu/ther … l#pp-table
Why are you looking at it, did you check the link I posted?

I was looking around the files to try and find out if I can monitor the current power management state and whether it changes when the application is open or not.