I had probably the same problem with an ATI 9100 (r200) using
xserver-xorg-video-ati/xserver-xorg-video-radeon driver.
I noticed that 3d acceleration was working ("glxinfo|grep direct" showed
"direct rendering: Yes" and glxgears worked fine), anyway seems like "lightdm"
is not able to check it correctly.
Despite that, gdm seems to not have the same problem: doing "sudo
dpkg-reconfigure gdm" and selecting "gdm" as default display manager solved my
problem, though it is actually just a workaround.
Not sure if I'm completely right, but it seems to be at least related with
lightdm, too.
** Also affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/975414
Title:
lightdm failed to run
Status in “lightdm” package in Ubuntu:
New
Status in “xserver-xorg-video-ati” package in Ubuntu:
Confirmed
Bug description:
On my netbook dell inspiron 1501 lightdm failed to run.
I see the message
"The system is running in low-graphics mode"
The next step is proposed
- run in low-graphics mode for just one session
- reconfigure graphics
- trubleshoot the error
- Exit to console login
but all options are returned to me to console login.
If i`m use
exec gnome-session or exec gnome-shell in .xinitrc and run startx in tty1
graphical environment is started successfully.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: lightdm (not installed)
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic x86_64
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
Date: Fri Apr 6 22:41:39 2012
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027.1)
ProcEnviron:
LANGUAGE=ru_RU:ru:en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=ru_RU.UTF-8
SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: Upgraded to precise on 2012-03-30 (6 days ago)
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