Bug#943844: nouveau: cannot create GPU channel in Buster (worked in Stretch) - GeForce 6150
On Thu, 31 Oct 2019 15:46:30 +0000 Daniel James
<daniel.james@sonadata.co.uk> wrote:
I normally try to stay clear of testing and unstable, but I'll try those
when I get a chance ...
Sorry it's taken a while.
With Testing (Kernel 5.2.0, Nouveau 1.0.16) the system boots to a
full-screen graphical login. I can enter my username and password, and
the screen then switches to a garbled version of the desktop (a bit like
an old CRT television whose horizontal hold is incorrectly set, but
static not moving).
On this system, "dmesg | grep -E '(drm|nouveau)'" (as root) gives:
[ 2.743125] nouveau 0000:00:05.0: NVIDIA C51 (04e000a2)
[ 2.752186] nouveau 0000:00:05.0: bios: version 05.51.22.33.07
[ 2.753091] nouveau 0000:00:05.0: fb: 128 MiB of unknown memory type
[ 4.052950] nouveau 0000:00:05.0: DRM: VRAM: 125 MiB
[ 4.052985] nouveau 0000:00:05.0: DRM: GART: 512 MiB
[ 4.053022] nouveau 0000:00:05.0: DRM: TMDS table version 1.1
[ 4.053058] nouveau 0000:00:05.0: DRM: DCB version 3.0
[ 4.053094] nouveau 0000:00:05.0: DRM: DCB outp 00: 02000300 00000023
[ 4.053131] nouveau 0000:00:05.0: DRM: DCB outp 01: 03011312 00000000
[ 4.053168] nouveau 0000:00:05.0: DRM: DCB outp 02: 020023f1 0040c080
[ 4.053205] nouveau 0000:00:05.0: DRM: DCB conn 00: 0000
[ 4.053240] nouveau 0000:00:05.0: DRM: DCB conn 01: 0131
[ 4.053275] nouveau 0000:00:05.0: DRM: DCB conn 02: 0210
[ 4.053311] nouveau 0000:00:05.0: DRM: DCB conn 03: 0211
[ 4.053346] nouveau 0000:00:05.0: DRM: DCB conn 04: 0213
[ 4.054701] nouveau 0000:00:05.0: DRM: MM: using M2MF for buffer copies
[ 4.055157] nouveau 0000:00:05.0: DRM: Saving VGA fonts
[ 4.093998] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 4.094037] [drm] Driver supports precise vblank timestamp query.
[ 4.095028] nouveau 0000:00:05.0: DRM: Setting dpms mode 3 on TV
encoder (output 2)
[ 4.176611] nouveau 0000:00:05.0: DRM: allocated 1920x1200 fb:
0x9000, bo (____ptrval____)
[ 4.218180] fbcon: nouveaudrmfb (fb0) is primary device
[ 4.329239] nouveau 0000:00:05.0: fb0: nouveaudrmfb frame buffer device
[ 4.345656] [drm] Initialized nouveau 1.3.1 20120801 for 0000:00:05.0
on minor 0
Interestingly, when I switch between "terminals" (is that the right
word?) with Ctrl+Alt+F1 and back with Ctrl+Alt+F7 I see a perfect
desktop display briefly before changing away to the text terminial, and
again when I switch back but this then changes to the garbled display
again. Every time I switch away from the graphics terminal to a text one
and back this happens, for slightly varying time periods but never more
than about half a second.
There are no obvious relevant errors in /var/log/Xorg.0.log (and it's
quite long) -- should I post it here?
I've yet to try unstable ... I haven't any more spare hard drives so I'd
have to overwrite the testing system and I don't want to do that if
there's a chance that it may tell us something.
--
Reply to: