Public bug reported:
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]
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xubuntu-desktop 2.233
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu42
Architecture: amd64
CasperMD5CheckResult: pass
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_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: xubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xubuntu-meta (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug groovy
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https://bugs.launchpad.net/bugs/1886129
Title:
xubuntu : displays have become blank & unusable
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