The bug is still triggered (not always) by suspend-to-ram then wake-up.
This make a frustrating user experience since the most affordable
workaround is to close the session the reopen it when bug occurs. Since
many applications are defaced (see screenshots), the user cannot
properly check if
Unfortunately, the bug occurred again a few minutes ago.
This means that uninstalling light-locker and using xscreensaver instead
is not enough to prevent the bug from occurring.
AFAIK, doing so avoids light-locker creating possibly short-lived X
servers (for the purpose of asking password for
Hello Christopher @penalvch.
> Could you please report this problem through the appropriate channel
by following the instructions verbatim at
http://nouveau.freedesktop.org/wiki/Bugs/ ?
I performed part of it. The situation passed the "TroubleShooting" step.
I checked on the bugzilla, visited
gouri, the issue you are reporting is an upstream one. Could you please
report this problem through the appropriate channel by following the
instructions verbatim at http://nouveau.freedesktop.org/wiki/Bugs/ ?
Please provide a direct URL to your bug report once you have made it so
that it may be
After another failed attempt at installing nVidia driver through
software-properties-gtk here is another bug report
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-361/+bug/1556960
So bugs happens every few days.
Hypothesis: bug happens when another X server is run. This
Still occurs with latest build
xserver-xorg-video-nouveau 1:1.0.12-1build2
*Bug is severely impacting for daily work.*
Strangely enough, video worked rather well with 14.10 and 15.04, we
mainly had trouble with NetworkManager there.
After using Ubuntu more than 10 years now (first was
Nouveau driver seems active according to dmesg.
[0.721176] nouveau :01:00.0: NVIDIA GM107 (117110a2)
[0.747014] nouveau :01:00.0: bios: version 82.07.2a.00.17
[0.856760] nouveau :01:00.0: fb: 4096 MiB DDR3
[0.856814] nouveau :01:00.0: priv: HUB0: 10ecc0
** Changed in: xorg (Ubuntu)
Status: Incomplete => Triaged
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https://bugs.launchpad.net/bugs/1547077
Title:
Some glyphs drawn consistently wrong, bug comes and go
** Tags removed: has-workaround
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https://bugs.launchpad.net/bugs/1547077
Title:
Some glyphs drawn consistently wrong, bug comes and go
Status in xorg package in Ubuntu:
Laptop stickers show: nVidia GeForce GTX 850M and lspci shows both
nVidia and Intel graphics.
I'm not quite sure if nouveau or intel driver is used.
egrep '(intel|nouveau)' -i Xorg.0.log -o | sort | uniq -c
62 intel
9 Intel
1 INTEL
12 nouveau
2 NOUVEAU
Can anyone
As requested by @penalvch, checked what the BIOS offers.
Answer: the BIOS does not offer to disable any intel or nividia chip.
In "Graphics Configuration", the BIOS only offers "DVMT Pre-Allocated"
with values 64M 128M 256M 512M, currently set to default 64M.
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Summary: trying proprietary nVidia driver as a workaround does not work.
I tried again to switch to nvidia-driver using GUI tool software-
properties-gtk
This caused again nvidia driver installation failure.
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-361/+bug/1553554
Last
Summary: trying proprietary nVidia driver as a workaround does not work.
I tried again to switch to nvidia-driver using GUI tool software-
properties-gtk
This caused again nvidia driver installation failure.
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-361/+bug/1553554
Last
I'll try that BIOS test.
In the meantime I thought I'd try again nVidia proprietary driver.
Installation of package was requested through Ubuntu driver selection
GUI.
Resulted in 2 new bugs automatically notified and reported:
https://bugs.launchpad.net/ubuntu/+source/bbswitch/+bug/1552108
gouri, to further narrow down, are you able to disable either the Intel
or nvidia card in BIOS?
If so, what happens when you disable one versus the other?
** Description changed:
# Summary
-
* Some glyphs badly drawn at some moments.
* When happens, same glyph drawn on various windows
@penalvch this goes into complications.
Actually, I've been using 16.04 and Intel driver because in 14.10, 15.04
and 15.10, all solutions (open-source nouveau driver, open-source intel
driver and proprietary nVidia driver) have had different problems (but
not this problem).
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gouri, to see if a WORKAROUND is available, could you please test the
nvidia drivers via Additional Drivers and advise to the results?
** Tags added: latest-bios-203
** Changed in: xorg (Ubuntu)
Importance: Low => Medium
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Hello.
Suspending then resuming system seems to have some effect.
This morning, after resume from suspend (with session still open), all
text glyphs appeared blank on the lightdm screen.
I expected the session to be fully unusable, but surprisingly, the
session itself has had no problem at all
apport information
** Tags added: apport-collected has-workaround regression reproducible
ubuntu
** Description changed:
# Summary
* Some glyphs badly drawn at some moments.
* When happens, same glyph drawn on various windows shows same corruption.
* Problem comes and go.
#
gouri, thank you for reporting this and helping make Ubuntu better.
Could you please run the following command once from a terminal by ensuring you
have the package xdiagnose installed, and that you click the Yes button for
attaching additional debugging information:
apport-collect -p xorg
** Description changed:
# Summary
* Some glyphs badly drawn at some moments.
* When happens, same glyph drawn on various windows shows same corruption.
* Problem comes and go.
# Context
Laptop, using Intel driver.
Expected: all glyphs rendered correctly.
Observed:
** Attachment added: "see main text"
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