Arch Linux

kira2535

Member

Registered: 2026-09-14

Posts: 1

[SOLVED]nouveau problem

I'm not a programer and new to linux community I've done everything with AI assistance.
I had a problem with nvidia graphic card. I had problem with screen resolution and fixed it with driver nouveau and mesa, it helped but I still had problems with acceleration( graphics card didnt work and instead worked llvmpipe). After long I fixed everything by creating /etc/X11/xorg.conf.d/20-modesetting.conf with
Section "Device"
Identifier "NVIDIA"
Driver "modesetting"
BusID "PCI:1:0:0"
EndSection
This changed the Xorg driver from xf86-video-nouveau to the generic modesetting driver, while the kernel driver remained nouveau. It seams like gpu is now working because I could feel that in games, and different visual effects in kde appeared. BUT, In info center it still shows that gpu is 0% working no matter what, xr-animator( program for vtubers) that worked before (very slow, but worked) now has a standard 3d model broken (textures on the model blink and stretch all over the screen). I tried to reinstall it, but it didnt fix the issue. xr-animator also got a lot of warnings about font:
Fontconfig warning: "/etc/fonts/conf.d/48-guessfamily.conf", line 19: invalid attribute 'xsi:nil' invalid constant used : monospace invalid constant used : sans-serif invalid constant used : serif......
......
Im not sure if they are useful or not.
I also got a strange error which I cant understand:
nouveau ... drm: failed to create ce channel, -22
nouveau ... drm: MM: using COPY for buffer copies
All information about pc and drivers are below. If you know how to fix some of these 3 problems help me please.
OS: Arch Linux
Desktop: KDE Plasma
Display server: X11
Window manager/compositor: KWin X11
GPU: NVIDIA NVS 2100M / GT218M
PCI ID: 10de:0a6a
Architecture: Tesla / NV50
VRAM: 512 MB DDR3
Toshiba subsystem: 1179:0001
Kernel driver: nouveau
Kernel module: nouveau
Xorg initially used: xf86-video-nouveau
Mesa: 26.2.2
LLVM: 22.1.8
libdrm: 2.4.134
libglvnd: 1.7.0
xf86-video-nouveau: 1.0.18
nouveau-fw: 340.108-1

Last edited by kira2535 (2026-09-17 08:46:41)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,659

Re: [SOLVED]nouveau problem

qdbus6 org.kde.KWin /KWin supportInformation
glxinfo -B

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