Šarūnas Burdulis wrote on 4/22/26 7:28 PM:
You can check with `lspci -v`. Look for the entry for your VGA
controller and then for:
Kernel driver in use
Kernel modules
Thank you very much.
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04:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 430]
(rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd Device 3505
Flags: bus master, fast devsel, latency 0, IRQ 147, IOMMU group 1
Memory at de000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=128M]
Memory at d8000000 (64-bit, prefetchable) [size=32M]
I/O ports at b000 [size=128]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nouveau
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So looks like I'm already using the open source driver.
Also in `lsmod`, the relevant kernel module would be either 'nvidia'
(proprietary) or `nouveau` (open source).
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[ZB:~] lsmod | grep nouveau
nouveau 3055616 16
mxm_wmi 12288 1 nouveau
drm_gpuvm 45056 1 nouveau
drm_exec 12288 2 drm_gpuvm,nouveau
gpu_sched 65536 1 nouveau
drm_display_helper 274432 1 nouveau
drm_ttm_helper 16384 2 nouveau
ttm 106496 2 drm_ttm_helper,nouveau
drm_kms_helper 253952 3 drm_display_helper,drm_ttm_helper,nouveau
button 24576 1 nouveau
drm 774144 19
gpu_sched,drm_kms_helper,drm_exec,drm_gpuvm,drm_display_helper,drm_ttm_helper,ttm,nouveau
i2c_algo_bit 16384 2 igb,nouveau
video 81920 1 nouveau
wmi 28672 4 video,intel_wmi_thunderbolt,mxm_wmi,nouveau
[ZB:~]
That seems to confirm the fact.
So it seems that the nouveau driver in trixie has a bug that wasn't present
before. I'll see if I can figure out where to report that.
Thank you for your help.
Doc
PS:
Lately I'm quite happy using Intel's ARC video cards — kernel module
`xe` (i.e. "driver") is in standard Linux kernel.
I've made a note of that, in case the nouveau bug doesn't get fixed reasonably
quickly.
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Web: http://enginehousebooks.com/drevans
