xubuntu : displays have become blank & unusable
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xubuntu-meta (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Xubuntu groovy QA-test (live) on
hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)
No issues during test before this issue, I'd mounted an external drive and was using random found files to open & view files using installed apps. On opening a movie type of file, it started playing in parole on one display, I was jumping forward to different parts of the video file expecting to soon close & it and move to next file, alas both displays became unusuble
** problem
at first no issues moving the 'video' forward, then both screens suddenly showed blocky-graphics (pre-digital era untuned-tv) which seemed to change on mouse clicks. At first I found pattern hard to detect, as it switched black&white, colored-blocks, then black-screen with cursor.
It settled down to black-screen with cursor (correct except black screen), right-click would make it black-white-blocky (like untuned analogue tv), right click again and it would return to black background with normal cursor. On occasion both displays flicker white though (the image on right click seems to vary on where the mouse-pointer is)
My Xubuntu/XFCE gui session is gone & unusuable.
** expected result
I expected `parole` to cope with my various jumps in the video file, until I closed it.
I see no squashfs errs in dmesg/journalctl, both show issues with `nouveau` [440.365961]
Possibly I should have filed against `xserver-
I won't take a photo, it'd require video as screen isn't always static though it is most of the time (depends where pointer is on screen)
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xubuntu-desktop 2.233
ProcVersionSign
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelMo
ApportVersion: 2.20.11-0ubuntu42
Architecture: amd64
CasperMD5CheckR
CasperVersion: 1.452
Date: Fri Jul 3 02:08:27 2020
LiveMediaBuild: Xubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200701)
ProcEnviron:
TERM=linux
PATH=(custom, no user)
XDG_RUNTIME_
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: xubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)
description: | updated |
[ 341.008336] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null) perf_event_ max_sample_ rate to 79250 perf_event_ max_sample_ rate to 63250
[ 434.346319] perf: interrupt took too long (2523 > 2500), lowering kernel.
[ 440.365961] nouveau 0000:01:00.0: fifo: CACHE_ERROR - ch 4 [Xorg[1630]] subc 3 mthd 0208 data 000000cf
[ 440.380700] nouveau 0000:01:00.0: gr: TRAP_MP_EXEC - TP 0 MP 0: 00000010 [INVALID_OPCODE] at 07fac4 warp 19, opcode bffffdde bf7fffff
[ 440.380713] nouveau 0000:01:00.0: gr: TRAP_MP_EXEC - TP 0 MP 1: 00000010 [INVALID_OPCODE] at 07fac4 warp 1, opcode bffffdde bf7fffff
[ 440.380719] nouveau 0000:01:00.0: gr: 00200000 [] ch 4 [000f739000 Xorg[1630]] subc 3 class 8297 mthd 1b0c data 1000f010
[ 1836.468475] perf: interrupt took too long (3154 > 3153), lowering kernel.
I think first message here is when I mounted the external drive (in thunar) and started opening selected/random files in default apps; first was picture files (jpg, png..), pdf then I selected a video file which is where it went wrong
the nouveau lines are where I believe it went wrong