xrandr reports incorrect maximum screen size
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
fglrx-installer (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: x11-xserver-utils
$ lsb_release -rd
Description: Ubuntu karmic (development branch)
Release: 9.10
$ apt-cache policy x11-xserver-utils
x11-xserver-utils:
Installed: 7.4+2ubuntu3
Candidate: 7.4+2ubuntu3
Version table:
*** 7.4+2ubuntu3 0
500 http://
100 /var/lib/
My expectation is that xrandr will recognize the correct maximum 3200x1200 size on my Thinkpad T400 laptop and will allow me to set the size to 3200x1200. My maximum screen resolution is 3200x1200, and I used this resolution on a dual external monitor setup when docked. I use xrandr to set up my screen resolution when docked with the following script that, until this morning, has worked just fine:
#! /bin/sh
xrandr --output LCD --off && \
xrandr --fb 3200x1200 \
--output DFP1 --auto \
--output CRT1 --auto --right-of DFP1
Within the past three days of updates to karmic (somewhere between 10/9/9 and 10/12/9), the script above stopped working, and the root cause of this is that the maximum screen resolution as seen by xrandr is only 2048x2048 instead of the required 3200x1200. The following is what xrandr returns when I attempt to set this size:
$ xrandr --fb 3200x1200
xrandr: screen cannot be larger than 2048x2048 (desired size 3200x1200)
ProblemType: Bug
Architecture: amd64
Date: Mon Oct 12 13:48:07 2009
DistroRelease: Ubuntu 9.10
MachineType: LENOVO 2767A15
NonfreeKernelMo
Package: x11-xserver-utils 7.4+2ubuntu3
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: root=UUID=
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSign
RelatedPackageV
xserver-xorg 1:7.4+3ubuntu5
libgl1-mesa-glx 7.6.0-1ubuntu2
libdrm2 2.4.14-1ubuntu1
xserver-
xserver-
SourcePackage: x11-xserver-utils
Uname: Linux 2.6.31-13-generic x86_64
dmi.bios.date: 01/09/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7UET56WW (2.02 )
dmi.board.name: 2767A15
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 2767A15
dmi.product.
dmi.sys.vendor: LENOVO
system:
distro: Ubuntu
architecture: x86_64kernel: 2.6.31-13-generic
Changed in x11-xserver-utils (Ubuntu): | |
status: | New → Confirmed |
affects: | x11-xserver-utils (Ubuntu) → fglrx-installer (Ubuntu) |
tags: | added: karmic |
After a couple of days updating Karmic, this bug "went away." I have no idea if it is an intermittent thing, or if someone just caught it & fixed it, or if rebooting solved the issue.