[q45] Autodetection results in reduced resolutions available - i915
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xserver-xorg-video-intel (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: xorg
I'm using a Dell optiplex 760 with an intel Q45 chipset.
The problem is that xorg *usually* doesn't recognize the screen so it uses a lower resolution 800x600. The only available resolutions are 640x480 and 800x600.
Sometimes however the screen is recognized and the resolution is just fine. I haven't been able to find out under what circumstances this happens...
My guess is that EDID information is sometimes detected incorrectly...
I've tried rebooting Karmic with the kernel parameter modeset=0 and creating an xorg.conf file through X -configure
but it doesn't seem to make any difference.
I've also noticed that (when the right resolution is selected) after a couple of hours the screen turns black for 1-2 secs. It does that blinking several times and finally the screen turns off. When I restarted the pc it did the same thing only much faster like 5 mins after booting.
ProblemType: Bug
Architecture: amd64
Date: Fri Jan 29 12:53:11 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Dell Inc. OptiPlex 760
Package: xorg 1:7.4+3ubuntu10
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSign
RelatedPackageV
xserver-xorg 1:7.4+3ubuntu10
libgl1-mesa-glx 7.6.0-1ubuntu4
libdrm2 2.4.14-1ubuntu1
xserver-
xserver-
SourcePackage: xorg
Uname: Linux 2.6.31-17-generic x86_64
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/
XsessionErrors:
(gnome-
(polkit-
(nautilus:1800): Eel-CRITICAL **: eel_preferences
(firefox:1936): GLib-WARNING **: g_set_prgname() called multiple times
dmi.bios.date: 08/17/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0M858N
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: OptiPlex 760
dmi.sys.vendor: Dell Inc.
fglrx: Not loaded
system:
distro: Ubuntu
architecture: x86_64kernel: 2.6.31-17-generic
[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e12] (rev 03)
Subsystem: Dell Device [1028:027f]
affects: | xorg (Ubuntu) → xserver-xorg-video-intel (Ubuntu) |
description: | updated |
summary: |
- Autodetection results in reduced resolutions available - i915 + [Q45] Autodetection results in reduced resolutions available - i915 |
tags: | added: displayport karmic q45 resolution |
description: | updated |
description: | updated |
Changed in xserver-xorg-video-intel (Ubuntu): | |
status: | Incomplete → New |
status: | New → Incomplete |
summary: |
- [Q45] Autodetection results in reduced resolutions available - i915 + [q45] [Q45] Autodetection results in reduced resolutions available - + i915 |
summary: |
- [q45] [Q45] Autodetection results in reduced resolutions available - - i915 + [q45] Autodetection results in reduced resolutions available - i915 |
Hi, same problem here, the only way to make X get a "reasonable" resolution is by restarting the Xserver at the login GDM/KDM login screen, until it gives up and decides to probe the hardware for a change... Manual setting in xorg.conf also seems not working... I am attaching my xorg.conf for reference, in case someone has any suggestions. Thanks!