This bug was fixed in the package nux - 4.0.8+18.10.20180613.3-0ubuntu1
---------------
nux (4.0.8+18.10.20180613.3-0ubuntu1) cosmic; urgency=medium
* debian/50_check_unity_support:
- various changes to fix (LP: #1768610):
+ export LIBGL_ALWAYS_SOFTWARE=1 only on command failure
+ run only when called inside an unity session
-- Marco Trevisan (Treviño) <m...@3v1n0.net> Wed, 13 Jun 2018 12:20:53
+0000
** Changed in: nux (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1768610
Title:
leftover conffile forces GNOME is software rendering
Status in mesa package in Ubuntu:
New
Status in nux package in Ubuntu:
Fix Released
Status in mesa source package in Xenial:
New
Status in nux source package in Xenial:
In Progress
Status in mesa source package in Artful:
New
Status in nux source package in Artful:
In Progress
Status in mesa source package in Bionic:
New
Status in nux source package in Bionic:
In Progress
Bug description:
After an upgrade from 17.10 to 18.04, I noticed that all gnome windows
animations were gone. After some digging, it seems that gnome-session
incorrectly assumes that my graphics has no acceleration, when in fact
it does: it's a i5-2520M CPU @ 2.50GHz with Intel integrated graphics
(i915 driver).
I've tried this with and without the xserver-xorg-video-intel package
(a.k.a. Intel driver) with the same behavior.
The output of gnome-session-check-accelerated is: llvmpipe (LLVM 6.0,
256 bits) however the system should have DRM 2.0 capability.
GL checks (e.g. glxinfo, glxgears produce the expected output from a
working DRM system).
mesa-utils and mesa-utils-extra are both installed.
I can't find a work around. Perhaps there is something wrong with my
install/upgrade?
Everything else works fine, although the graphical transitions are no
longer smooth. But it would be nice to restore the expected behavior.
I have attached the log of 'journalctl -b0'
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-session 3.28.1-0ubuntu2
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed May 2 13:06:00 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-04-22 (739 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-session
UpgradeStatus: Upgraded to bionic on 2018-04-27 (5 days ago)
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