Arch Linux

aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

[SOLVED]3rd monitor stopped working after update

Can not get all 3 monitors working at the same time after update today.

SAMSUNG LS32AG32x

plasmashell 5.25.2
Qt: 5.15.5
KDE Frameworks: 5.95.0
kf5-config: 1.0
OpenGL version string: 4.6 (Compatibility Profile) Mesa 22.1.3
Device: AMD Radeon RX 6700 XT (navy_flounder, LLVM 14.0.6, DRM 3.46, 5.18.9-arch1-1)

When booting up all 3 monitors display correctly in the greeter, but as soon as I log into the KDE desktop one of the monitors stops displaying. In the KDE Display and Monitor settings the window keeps reloading saying a new output has been added. Settings have been reloaded. I was able to see in between reloads that the monitor appears in the device drop-down and is not enabled. If I enable it, the settings reload, and it is not enabled again. I can unplug one monitor and the remaining two seem to work, but as soon as I plug in a third one stops displaying.

Really don't know how to troubleshoot this or why this happened after lasted update.

Last edited by aboogesnickle (2022-07-06 19:58:54)

aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

Re: [SOLVED]3rd monitor stopped working after update

It looks like it might be an issue with the GPU drivers because I am also now getting an error on a steam game that previously worked

Failed to initialize graphics.
Make sure you have DirectX 11 installed, have up to date
drivers for your graphics card and have not disabled
3D acceleration in display settings.
InitializeEngineGraphics failed

Last edited by aboogesnickle (2022-07-06 17:45:46)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,498

Re: [SOLVED]3rd monitor stopped working after update

This can happen if your KMS kicks in late and/or delay in compiling shaders. What's your output of

glxinfo -B #Needs mesa-utils
glxinfo32 -B #Needs lib32-mesa-utils
vulkaninfo --summary #Needs vulkan-tools
pacman -Qs 'mesa|amdvlk'

and you probably want to set up https://wiki.archlinux.org/title/Kernel … _KMS_start regardless.

aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

Re: [SOLVED]3rd monitor stopped working after update

This can happen if your KMS kicks in late and/or delay in compiling shaders. What's your output of

glxinfo -B #Needs mesa-utils
glxinfo32 -B #Needs lib32-mesa-utils
vulkaninfo --summary #Needs vulkan-tools
pacman -Qs 'mesa|amdvlk'

and you probably want to set up https://wiki.archlinux.org/title/Kernel … _KMS_start regardless.

glxinfo -B #Needs mesa-utils

name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: AMD (0x1002)
    Device: AMD Radeon RX 6700 XT (navy_flounder, LLVM 14.0.6, DRM 3.46, 5.18.9-arch1-1) (0x73df)
    Version: 22.1.3
    Accelerated: yes
    Video memory: 12288MB
    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: 11767 MB, largest block: 11767 MB
    VBO free aux. memory - total: 12210 MB, largest block: 12210 MB
    Texture free memory - total: 11767 MB, largest block: 11767 MB
    Texture free aux. memory - total: 12210 MB, largest block: 12210 MB
    Renderbuffer free memory - total: 11767 MB, largest block: 11767 MB
    Renderbuffer free aux. memory - total: 12210 MB, largest block: 12210 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 12288 MB
    Total available memory: 24560 MB
    Currently available dedicated video memory: 11767 MB
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon RX 6700 XT (navy_flounder, LLVM 14.0.6, DRM 3.46, 5.18.9-arch1-1)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 22.1.3
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 22.1.3
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 22.1.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

vulkaninfo --summary #Needs vulkan-tools

bash: vulkaninfo: command not found

pacman -Qs 'mesa|amdvlk'

local/amdvlk 2022.Q2.3-1
    AMD's standalone Vulkan driver
local/glu 9.0.2-3
    Mesa OpenGL utility library
local/lib32-amdvlk 2022.Q2.3-1
    AMD's standalone Vulkan driver
local/lib32-glu 9.0.2-3
    Mesa OpenGL utility library (32 bits)
local/lib32-mesa 22.1.3-1
    An open-source implementation of the OpenGL specification (32-bit)
local/lib32-vulkan-radeon 22.1.3-1
    Radeon's Vulkan mesa driver (32-bit)
local/libva-mesa-driver 22.1.3-1
    VA-API implementation for gallium
local/mesa 22.1.3-1
    An open-source implementation of the OpenGL specification
local/mesa-utils 8.5.0-2
    Essential Mesa utilities
local/vulkan-mesa-layers 22.1.3-1
    Mesa's Vulkan layers
local/vulkan-radeon 22.1.3-1
    Radeon's Vulkan mesa driver

aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

Re: [SOLVED]3rd monitor stopped working after update

vulkaninfo --summary #Needs vulkan-tools

bash: vulkaninfo: command not found

Installed vulkan-tools and reran that command.

vulkaninfo --summary
ERROR at /build/vulkan-tools/src/Vulkan-Tools-1.3.217/vulkaninfo/vulkaninfo.h:231:vkEnumeratePhysicalDevices failed with INCOMPLETE

aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

Re: [SOLVED]3rd monitor stopped working after update

This can happen if your KMS kicks in late and/or delay in compiling shaders. What's your output of

glxinfo -B #Needs mesa-utils
glxinfo32 -B #Needs lib32-mesa-utils
vulkaninfo --summary #Needs vulkan-tools
pacman -Qs 'mesa|amdvlk'

and you probably want to set up https://wiki.archlinux.org/title/Kernel … _KMS_start regardless.

I edited the mkinitcpio.conf file to

MODULES=(ext4 amdgpu)

Rebooted, but same issue.

seth

Member

Registered: 2012-09-03

Posts: 64,956

Re: [SOLVED]3rd monitor stopped working after update

Editing the mkinitcpio.conf doesn't do anything.
You also have to rebuild the initramfs.

echo $XDG_SESSION_TYPE

Are you running KDE on wayland (now)?
Does the same thing happen on kde on X11?

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aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

Re: [SOLVED]3rd monitor stopped working after update

Editing the mkinitcpio.conf doesn't do anything.
You also have to rebuild the initramfs.

echo $XDG_SESSION_TYPE

Are you running KDE on wayland (now)?
Does the same thing happen on kde on X11?

Checked that the mkinitcpio.conf was still correct, and ran

mkinitcpio -P

then rebooted. The 3 monitors ran until I got to the greeter, but 1 monitor went black after logging into KDE.

echo $XDG_SESSION_TYPE

x11

aboogesnickle

Member

Registered: 2022-07-06

Posts: 7

Re: [SOLVED]3rd monitor stopped working after update

So I found an article on the KDE forum https://forum.kde.org/viewtopic.php?t=128251

That mentioned a similar issue, I deleted the ~.local/share/kscreen/ folder and rebooted. Seems to have got the 3rd monitor working again.

Thanks for the help.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,408

Re: [SOLVED]3rd monitor stopped working after update

At that point, I would log into KDE and go into setup and take a look at the display configuration.  KDE may have removed one when it was not available.

Edit:  Never mind, we cross posted

Last edited by ewaller (2022-07-06 19:59:04)

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