Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: screen-resolution-extra (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/377172
Title:
gnome-display-properties silently broke all my hardware acceleration
and movie watching
Status in screen-resolution-extra package in Ubuntu:
Confirmed
Bug description:
Binary package hint: gnome-control-center
After upgrading to Jaunty, I tried fiddling around with the new
version of gnome-display-properties, with my laptop (1024x768 display)
and an external monitor (1680x1050 display). When attempting to place
them next to each other, gnome-display-properties displayed a cheerful
note informing me that it couldn't do that because of a problem with
my xorg.conf, but it could happily fix that problem and I really
should click "Ok". So I did.
This added a line like
Subsection "Display"
Virtual 2704 1050
EndSubSection
to my /etc/X11/xorg.conf
My laptop (Thinkpad X60) has an Intel GM945, and the intel drivers top
out at a Virtual size of 2048x2048. This configuration change made
them very unhappy.
The actual symptom I experienced was that some days later, after the
next time I restarted X, I discovered that all video programs (totem,
mplayer, etc.) that I tried to start would simply crash immediately.
XVideo was broken, and none of them are set up to handle this
gracefully. 3d acceleration also appears to be broken.
I'm not sure what the best solution here is -- it seems unfortunate
that gnome-display-properties would need to "know" that intel drivers
have a particular limit on their Virtual size -- but the bug is easily
triggered, and *completely* unfathomable to a naive user. At a
minimum, the cheery message should be changed to something which
includes a warning, so that if things do get broken the user has at
least a chance of remembering and looking in the right place.
(Also, on the user experience end, I am still annoyed at gnome-
display-properties. I trusted it! It lied to me! Screw you, 'xrandr
--auto' works better anyway! Okay, thanks for letting me get that part
off my chest.)
ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
Package: gnome-control-center 1:2.26.0-0ubuntu3
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/usr/bin/zsh
SourcePackage: gnome-control-center
Uname: Linux 2.6.28-11-generic x86_64
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