Fonts missing after suspend

[PeterPall]

After resuming from suspend cairo-dock disappears and all gnome applications show only the letters "s" and """. The rest of the letters is blank. Hope I still manage to file a bug report and to run apport-collect on it.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+12ubuntu1
Uname: Linux 4.4.0-040400rc5-lowlatency x86_64
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 23 13:46:41 2015
EcryptfsInUse: Yes
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
DistroRelease: Ubuntu 16.04
EcryptfsInUse: Yes
Package: xorg 1:7.7+12ubuntu1
PackageArchitecture: amd64
Tags: xenial
Uname: Linux 4.4.0-040400rc5-lowlatency x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

_MarkForUpload: True

[PeterPall (peterpall)]

apport information

[PeterPall (peterpall)]

apport information

[PeterPall (peterpall)]

apport information

[PeterPall (peterpall)]

Seems like apport-collect worked. Did run it while having this problem.

[penalvch (penalvch)]

PeterPall, thank you for reporting this and helping make Ubuntu better.

Could you please run the following command once from a terminal as it will automatically gather and attach updated debug information to this report:
apport-collect -p xorg 1528843

Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

When reporting xorg related bugs in the future, please do so via the above method. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]

[drunckoder (drunckoder)]

I fix this reloading Gnome Shell: press alt+f2, type "r" (w/o quotes) and press Enter.

[PeterPall (peterpall)]

On my computer using a current vanilla kernel with wily seems to fix this problem.

[penalvch (penalvch)]

PeterPall, could you please advise which kernel precisely you tested where the issue is not reproducible?

[PeterPall (peterpall)]

Linux version 4.6.0-040600-lowlatency (kernel@gomeisa) (gcc version 5.3.1 20160509 (Ubuntu 5.3.1-19ubuntu1) ) #201605151930 SMP PREEMPT Sun May 15 23:37:56 UTC 2016

[Thomas Mayer (thomas303)]

I had the same issue for a long time in 14.04 at least together with kernel 4.2 (and very likely 3.19 and maybe even before if I remember right).

It is still not fixed in ubuntu 16.04, kernel 4.4.0-28-generic.

I get this problem mostly after suspend. But I rarely get the invisible characters also during a normal session when I click something (about every few days). I could not yet reproduce if it depends on the object I click or if there is a pattern to reproduce it.

Tested hardware: Latitude E5510, CPU/GPU Intel core i5 520M, using the on-chip graphics.
I have an PR02X docking station and a dual monitor setup (2x external BenQ GW2460 via DVI) when this error happens. The problem does not occor when using the internal monitor of the laptop only.

Please note that my on-chip-GPU can handle two monitors only. Basically that means that the internal monitor is switched off automatically as soon as I use the two external monitors. So far this is working fine, however.

uname -a
Linux lat61 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[Thomas Mayer (thomas303)]

Btw. why has this issue low priority only? It's nearly as bad as if xserver crashes, including possible loss of unsaved data. User has to reboot which can only be done "blind" or by pressing a hardware power button (which can be harmful in itsself again).