[i965] Kernel mode setting breaks panning on Intel Mobile GM965/GL960

[Chetan Crasta]

Binary package hint: xorg

Xrandr's panning feature does not work correctly in Karmic. The mouse pointer keeps "losing its place" while moving outside the boundaries of the viewport. Because of this, certain areas of the display cannot be reached because the mouse position has been offset (i.e. the mouse pointer is displayed in a place different from where it should be).

The command I used to enable panning is:
xrandr --fb 4096x1600 --output LVDS1 --mode 1280x800 --panning 4096x1600

Changing the resolutions does not fix the problem.

However, disabling kernel mode setting by adding the option "nomodeset" to the kernel command line in GRUB fixes this problem. I also have to change LVDS1 to LVDS:
xrandr --fb 4096x1600 --output LVDS --mode 1280x800 --panning 4096x1600

I would like to have a panning display in Ubuntu 9.10 without resorting to nomodeset.

ProblemType: Bug
Architecture: i386
Date: Sun Jan 10 22:35:06 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: LENOVO Lenovo 3000 G410
Package: xorg 1:7.4+3ubuntu10
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-17-generic root=UUID=bd8e322b-65f1-4c33-ba37-415dc46a0d78 ro quiet nomodeset
ProcEnviron:
 LANG=en_IN
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu10
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
SourcePackage: xorg
Uname: Linux 2.6.31-17-generic i686
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 08/13/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 05CN36WW(V1.20)
dmi.board.name: IHL00
dmi.board.vendor: LENOVO
dmi.board.version: REFERENCE
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr05CN36WW(V1.20):bd08/13/2007:svnLENOVO:pnLenovo3000G410:pvr:rvnLENOVO:rnIHL00:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: Lenovo 3000 G410
dmi.sys.vendor: LENOVO
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.31-17-generic

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 03)
     Subsystem: Lenovo Device [17aa:383e]

[Vikram Dhillon (dhillon-v10)]

This issue was reported against karmic, so can you confirm if this issue exists with the most recent Lucid Lynx 10.04 Alpha release? ISO CD images are available at http://cdimage.ubuntu.com/releases/lucid/ . Thanks in advance.

[Chetan Crasta (chetancrasta)]

The particular problem mentioned in the bug report does not occur in Lucid Lynx Alpha 2.

However, there is a slightly different problem: When panning is enabled, dragging windows by the title bar does not work correctly. There is a noticeable time delay in the movement of the window, i.e. the window does not drag smoothly.

Changing visual effects to None, Normal or Extra does not fix the problem.

Just like in Karmic Koala, the problem is fixed by disabling kernel mode setting using the kernel switch "nomodeset".

[Chetan Crasta (chetancrasta)]

Is anybody doing anything to fix this bug? The status of this bug reads "Incomplete" even though all necessary information has been provided.

[Launchpad Janitor (janitor)]

[Expired for xserver-xorg-video-intel (Ubuntu) because there has been no activity for 60 days.]