Bug 1964038

Summary: Latest mesa-dri-drivers will break xorg if using amdgpu.
Product: [Fedora] Fedora Reporter: AKSN74 <missile0407>
Component: mesaAssignee: Adam Jackson <ajax>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 34CC: ajax, bskeggs, caillon+fedoraproject, igor.raits, jglisse, leander, lyude, naderkhalid, rclark, rhughes, rstrode, tstellar
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Hardware: x86_64   
OS: Unspecified   
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Last Closed: 2021-05-31 15:46:32 UTC Type: Bug
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Xorg log when error none

Description AKSN74 2021-05-24 15:05:47 UTC 
Description of problem:
The latest system update has mesa-dri-drivers-21.1.1-1.fc34.x86_64.
But desktop cannot launch after update, with black screen.
Check logs in $HOME/.local/share/xorg/Xorg.0.log and found that X11 failed to launch with below error:

(EE) AIGLX error: dlopen of /usr/lib64/dri/swrast_dri.so failed (/usr/lib64/dri/swrast_dri.so: undefined symbol: amdgpu_query_video_caps_info
(EE) AIGLX error: unable to load driver swrast
(EE) GLX: could not load software renderer
(II) GLX: No usable GL providers found for screen 0

Now everything works fine after downgrade to mesa-dri-drivers-21.0.2-1.fc34.x86_64.

Version-Release number of selected component (if applicable):
mesa-dri-drivers-21.1.1-1.fc34.x86_64

How reproducible:
Use AMD GPU then do system update to latest.

Steps to Reproduce:
1. Do system update then reboot.


Actual results:
Booted but black screen after login.

Expected results:
Show up the desktop after login.

Additional info:
My GPU is AMD Radeon VII.
And I can login to desktop if I install amdgpu-pro from AMD official website, but I can't use it since AMD didn't support EGL on this driver already.
Comment 1 AKSN74 2021-05-24 15:44:17 UTC 
Created attachment 1786508 [details]
Xorg log when error
Comment 2 Leander 2021-05-28 04:26:57 UTC 
Can confirm I'm seeing this same bug, same error in my Xorg log. Fedora Workstation 34 with a Vega 56 card running the amdgpu kernel drivers.
Comment 3 naderkhalid 2021-05-29 13:34:15 UTC 
*** Bug 1964480 has been marked as a duplicate of this bug. ***
Comment 4 Michel Dänzer 2021-05-31 14:49:38 UTC 
What does

 ldd /usr/lib64/dri/swrast_dri.so | grep amdgpu

say?

Which version of the libdrm package is installed?
Comment 5 AKSN74 2021-05-31 15:46:32 UTC 
(In reply to Michel Dänzer from comment #4)
> What does
> 
>  ldd /usr/lib64/dri/swrast_dri.so | grep amdgpu
> 
> say?
> 
> Which version of the libdrm package is installed?

Hi.
This notice me the lib dependency of swrast_dri.so
Found that it caused by AMD official OpenCL driver, which will install its own libdrm-amdgpu package.
And another package will make swrast_dri.so to link its own libdrm-amdgpu package.
Issue solved after remove AMD OpenCl driver then update mesa-dri-drivers again.

In conclusion, this is caused by AMD OpenCL driver.
I'll close this issue and report to AMD.

Sorry about inconvenience.