Public bug reported:
I'm using an Elysion U1 computer together with a BenQ projector. Ubuntu
reports that the monitor is not detected and defaults to a screen
resolution of 1280x800 pixels.
When I use the monitor preferences to change the resolution to 1024x768
(which is the correct resolution for this projector), the image gets
even more blurry than when the incorrect resolution is used.
xdpyinfo claims the resolution has been changed to 1024x768 pixels, but
the actual output being sent on the DVI port is still 1280x800 pixels.
It appears Ubuntu has configured the graphics chip to scale the 1024x768
image to 1280x800 pixels which the projector then needs to scale back to
1024x768 pixels, which results in a blurry output, which is almost
unreadable.
The bug exists in both the preinstalled Ubuntu 9.04 as well as in the
Ubuntu 10.04, that I just installed from the official Ubuntu DVD image.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-control-center 1:2.32.1-0ubuntu15
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Mon Mar 19 15:30:44 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty
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https://bugs.launchpad.net/bugs/959343
Title:
Incorrect screen resolution
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