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Re: AMD GPU Sea Islands Problem

Guyenne Tsui composed on 2020-12-12 16:23 (UTC):

> I tried to purge xserver-xorg-video-amdgpu and xserver-xorg-video-ati. 
> However it offered me to remove my entire desktop environment. So I 
> hesitated. I had a Pop!_OS installed on my drive which also encountered 
> the same graphical issues. So I instead installed a new Pop!_OS LTS on 
> my drive. The new Pop!_OS also froze when the command `DRI_PRIME=1 
> glxgears -fullscreen` is passed. This should indicate that the graphical 
> issue is not a result of my system tinkering. Since Pop!_OS is a 
> derivative of Ubuntu of which is a derivative of Debian, I think the 
> issue is either in Debian or upstream. I purged `firmware-amd-graphics` 
> but the graphical issue still persists. I cannot seem to locate which 
> package is causing the bug, so I am not sure how to file such an 
> ambiguous bug.

What follows is from a GCN#1, like yours. xserver-xorg-video-amdgpu and
firmware-amd-graphics are installed. xserver-xorg-video-ati is not installed.
'DRI_PRIME=1 glxgears -fullscreen` works as expected, as well as the rest of X.

# uname -a
Linux fi965 5.9.0-4-amd64 #1 SMP Debian 5.9.11-1 (2020-11-27) x86_64 GNU/Linux
# inxi -GISay
  Host: fi965 Kernel: 5.9.0-4-amd64 x86_64 bits: 64 compiler: gcc v: 10.2.0
  parameters:...mitigations=auto consoleblank=0 plymouth.enable=0
    radeon.si_support=0 amdgpu.si_support=1
  Desktop: Trinity R14.0.10 tk: Qt 3.5.0 info: kicker wm: Twin 3.0 dm: TDM
  Distro: Debian GNU/Linux bullseye/sid
  Device-1: AMD Oland [Radeon HD 8570 / R5 430 OEM / R7 240/340 / Radeon 520 OEM]
  vendor: Dell driver: amdgpu v: kernel alternate: radeon bus ID: 01:00.0

    chip ID: 1002:6611

  Display: x11 server: X.Org 1.20.10 driver: amdgpu
  unloaded: fbdev,modesetting,vesa alternate: ati display ID: :0 screens: 1
  Screen-1: 0 s-res: 2560x1440 s-dpi: 120 s-size: 541x304mm (21.3x12.0")
  s-diag: 621mm (24.4")
  Monitor-1: DisplayPort-0 res: 2560x1440 hz: 60 dpi: 109
  size: 598x336mm (23.5x13.2") diag: 686mm (27")
  OpenGL: renderer: AMD Radeon HD 8500 Series (OLAND DRM 3.39.0 5.9.0-4-amd64
  LLVM 11.0.0)
  v: 4.6 Mesa 20.2.4 direct render: Yes
Info:...Shell: Bash v: 5.1.0-rc3 running in: konsole inxi: 3.1.09
# lspci -nnk | grep -A3 VGA
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Oland [Radeon HD 8570 / R5 430 OEM / R7 240/340 / Radeon 520 OEM] [1002:6611]
        Subsystem: Dell Radeon R5 240 OEM [1028:210b]
        Kernel driver in use: amdgpu
        Kernel modules: radeon, amdgpu
# xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x53 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 2 outputs: 2 associated providers: 0 name:AMD Radeon HD 8500 Series @ pci:0000:01:00.0

These commands produce identical output.
     $ glxinfo | grep -e "OpenGL" -e "glx"
     $ DRI_PRIME=1 glxinfo | grep -e "OpenGL" -e "glx"

/etc/X11/xorg.con* contains nothing that is graphics-related.
Evolution as taught in public schools, like religion,
	is based on faith, not on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

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