[Bug 1327049] [NEW] libSDL1.2 screen tearing still occurs even with version 1.2.15-8ubuntu1.1
Gannin
1327049 at bugs.launchpad.net
Fri Jun 6 06:02:48 UTC 2014
Public bug reported:
Recently, someone reported a bug with libsdl1.2 where libsdl always used
the backingstore, which caused vsync issues. This bug was supposed to
have been fixed with the release of libsdl1.2 1.2.15-8ubuntu1.1, however
this did not fix the bug.
Even with the most recent libsdl1.2 1.2.15-8ubuntu1.1, screen tearing
still occurs when using full-screen OpenGL applications regardless of
how the vsync settings are set.
The current workaround is to edit the file:
/usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf
And add the -bs option, so that the file look like this:
[SeatDefaults]
# Dump core
xserver-command=X -bs -core
Adding the -bs option causes everything to vsync properly, including
full-screen OpenGL games and applications. But without the -bs option,
full-screen OpenGL applications still tear and have vsync issues, even
with the latest libsdl1.2 release.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: libsdl1.2debian 1.2.15-8ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Jun 5 22:54:10 2014
InstallationDate: Installed on 2014-05-31 (5 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: libsdl1.2
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: libsdl1.2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug regression-update trusty
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https://bugs.launchpad.net/bugs/1327049
Title:
libSDL1.2 screen tearing still occurs even with version
1.2.15-8ubuntu1.1
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