Visual artifacts

[Kai Jauch]

Binary package hint: gnome-mag

When selecting the screen magnifier in GDM, there are visual artifacts where the background should be. Also, the magnified cursor image is corrupted. See attached image.

ProblemType: Bug
Architecture: amd64
Date: Thu Aug 20 09:05:34 2009
DistroRelease: Ubuntu 9.10
Package: gnome-mag 1:0.15.8-0ubuntu1
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-6.25-generic
SourcePackage: gnome-mag
Uname: Linux 2.6.31-6-generic x86_64

[EliotBlennerhassett (eliot-blennerhassett)]

I was playing with the gdm accessibility settings, and selected screen magnifier.

The screen was similar to the already attached screenshot. The RHS of the screen either showed just the background image, or black where the screen content should be. Only half the login chooser was visible. The accessibility menu was hidden by the magnifier, and not visible in the magnifier.

Further, when I tried to log in to any user, the login would start, and then immediately quit and return to the login screen.

After various experiments (including installing xdm), I found I could disable the magnifier by removing

/var/lib/gdm/.gconf/desktop/gnome/applications/at/%gconf.xml (from memory)

Installing xdm caused several packages to be removed (e.g. at-spi), now there is nothing in the gdm accessibility menu.

[EliotBlennerhassett (eliot-blennerhassett)]

Currently this bug affects "gnome-mag", I can't see how to add "gdm"

[EliotBlennerhassett (eliot-blennerhassett)]

in my previous comment I said "xdm caused several packages to be removed (e.g. at-spi)".
I think what actually happened was that I uninstalled gnome-orca (didn't help the problem), but a side-effect was that some packages were no longer required, and were removed on the next apt run when I installed xdm.

[John Baptist (jepst79)]

This is a problem for me as well in Lucid. This happens when I run the magnifier from the command line, as above, and also when I run it from the Accessibility Options menu in GDM. The latter case is especially damaging, because the corrupted magnifier window covers the Accessibility menu, making it very hard to turn the magnifier off.

[Charlie Kravetz (cjkgeek)]

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here.

This bug has been reported to the developers of the software. You can track it and make comments at: https://bugzilla.gnome.org/show_bug.cgi?id=640951

Thanks for taking the time to make Ubuntu better!