Arch Linux

mindbound

Member

Registered: 2011-07-30

Posts: 46

Graphics glitches on AMD GPU

Hi,

I'm having odd graphics glitches or noise when running games or other programs using my discrete AMD GPU (via setting DRI_PRIME=1), as in the screenshot.

https://u.teknik.io/zNq6e.png

Everything else works fine and the performance is good but I haven't been able to pinpoint the nature of this problem. Setting TearFree doesn't seem to work. My GPU and driver situation is as follows (reported by `inxi -G`):

https://u.teknik.io/lMq9U.png

Please advise.

Mod Edit - Replaced oversized images with links.
CoC - Pasting pictures and code

Last edited by Slithery (2021-03-10 01:22:29)

mindbound

Member

Registered: 2011-07-30

Posts: 46

Re: Graphics glitches on AMD GPU

Solved, although not fully understood: it turns out the issue was in that I wasn't using a compositor. The glitches have disappeared after run xcompmgr. Is this a known issue with the amdgpu driver?

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,911

Re: Graphics glitches on AMD GPU

DRI_PRIME requires good cooperation between the primary and secondary card & drivers.

please post

$ pacman -Qs xf86-video
$ glxinfo -B # comes with mesa-demos
$ DRI_PRIME=1 glxinfo -B

xorg log would also be helpful

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)

mindbound

Member

Registered: 2011-07-30

Posts: 46

Re: Graphics glitches on AMD GPU

There you go:

$pacman -Qs xf86-video
local/xf86-video-amdgpu 19.1.0-2 (xorg-drivers)
    X.org amdgpu video driver
local/xf86-video-ati 1:19.1.0-2 (xorg-drivers)
    X.org ati video driver
local/xf86-video-dummy 0.3.8-4 (xorg-drivers)
    X.org dummy video driver
local/xf86-video-fbdev 0.5.0-2 (xorg-drivers)
    X.org framebuffer video driver
local/xf86-video-intel 1:2.99.917+916+g31486f40-1 (xorg-drivers)
    X.org Intel i810/i830/i915/945G/G965+ video drivers
local/xf86-video-nouveau 1.0.17-1 (xorg-drivers)
    Open Source 3D acceleration driver for nVidia cards
local/xf86-video-openchrome 0.6.0-4 (xorg-drivers)
    X.Org Openchrome drivers
local/xf86-video-qxl 0.1.5.r16.g52c421c-1 (xorg-drivers)
    Xorg X11 qxl video driver
local/xf86-video-vesa 2.5.0-1 (xorg-drivers xorg)
    X.org vesa video driver
local/xf86-video-vmware 13.3.0-2 (xorg-drivers)
    X.org vmware video driver
local/xf86-video-voodoo 1.2.5-11 (xorg-drivers)
    X.org 3dfx Voodoo1/Voodoo2 2D video driver

$glxinfo -B
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 4600 (HSW GT2) (0x412)
    Version: 20.3.4
    Accelerated: yes
    Video memory: 1536MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.5
    Max compat profile version: 3.0
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.1
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 4600 (HSW GT2)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 20.3.4
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 3.0 Mesa 20.3.4
OpenGL shading language version string: 1.30
OpenGL context flags: (none)

OpenGL ES profile version string: OpenGL ES 3.1 Mesa 20.3.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10

$DRI_PRIME=1 glxinfo -B
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: AMD (0x1002)
    Device: AMD Radeon (TM) R9 390 Series (HAWAII, DRM 3.40.0, 5.10.21-1-lts, LLVM 11.1.0) (0x67b1)
    Version: 20.3.4
    Accelerated: yes
    Video memory: 8192MB
    Unified memory: no
    Preferred profile: core (0x1)
    Max core profile version: 4.6
    Max compat profile version: 4.6
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 8171 MB, largest block: 8171 MB
    VBO free aux. memory - total: 8169 MB, largest block: 8169 MB
    Texture free memory - total: 8171 MB, largest block: 8171 MB
    Texture free aux. memory - total: 8169 MB, largest block: 8169 MB
    Renderbuffer free memory - total: 8171 MB, largest block: 8171 MB
    Renderbuffer free aux. memory - total: 8169 MB, largest block: 8169 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 8192 MB
    Total available memory: 16384 MB
    Currently available dedicated video memory: 8171 MB
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon (TM) R9 390 Series (HAWAII, DRM 3.40.0, 5.10.21-1-lts, LLVM 11.1.0)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.3.4
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.3.4
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 20.3.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,911

Re: Graphics glitches on AMD GPU

Sorry for late reply, I've been less active on forum lately and forgot I hadn't answered .

You have several unnecessary xf86-video- drivers, but most should be harmless .

remove xf86-video-intel , restart X and check .

post lspci -k output and xorg log from that start.

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)

mindbound

Member

Registered: 2011-07-30

Posts: 46

Re: Graphics glitches on AMD GPU

My primary card is Intel integrated, wouldn't removing xf86-video-intel cause problems with that?

Lone_Wolf

Member

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 11,911

Re: Graphics glitches on AMD GPU

On recent intel hardware (gen4 + ) xf86-video-intel tends to perform badly and generate problems.
Without it being present X will use its builtin modesetting driver.

If removing it doesn't help, just reinstall it.

Last edited by Lone_Wolf (2021-03-21 15:17:50)

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

(A works at time B)  && (time C > time B ) ≠  (A works at time C)

mindbound

Member

Registered: 2011-07-30

Posts: 46

Re: Graphics glitches on AMD GPU

After uninstalling xf86-video-intel Fluxbox failed to draw taskbar and other UI elements (sometimes they weren't drawn at all, sometimes garbled and unusable). For the time being, I added back the xf86-video-intel driver.

Last edited by mindbound (2021-03-28 09:06:42)