ubuntu-x-swat team mailing list archive

[Achim Bohnet <allee@xxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

With two 16:10 displays, a  Dell Latitude E6500 laptop (1440 x 900) and
a Dell 24'' TFT ( 1920 x 1200), the intel gfx driver chooses the 4:3
resolution of 1024x748 for both.   Visual result is a low 4:3
transformed to fullscreen 16:10, this looks pretty poor.  It's the first
matching common resolution according to xrandr output, nevertheless ...

...much better would be:  If both monitors have the same aspect ratio (e.g. 16:10 or 4:3)  choose the smaller resolution as the common base and scale to the size bigger monitor.    (Because only one monitor needs scaling it should even save
tons of GPU cycles.

With the proposed algorithm, one output runs with the 'perfect' native
resolution and only one is transformed, with taspect ratio is presered!
Currently base resolution is: lower than min. of both display,  _both_
are transformed, aspect ratio is not kept.

Achim

ProblemType: Bug
Architecture: amd64
Date: Sat Sep 26 14:16:01 2009
DistroRelease: Ubuntu 9.10
MachineType: Dell Inc. Latitude E6500
Package: xserver-xorg-video-intel 2:2.8.1-1ubuntu2
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-11-generic root=UUID=c81e0cef-ccb2-4fb0-9d11-02e85ba75a4c ro quiet splash
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu5
 libdrm2 2.4.13-1ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu2
SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.31-11-generic x86_64
XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
dmi.bios.date: 12/18/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0NY667
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd12/18/2008:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0NY667:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6500
dmi.sys.vendor: Dell Inc.
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       x86_64kernel:             2.6.31-11-generic

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug

-- 
[GM45] Bad resulution choice for mirror mode with two 16:10 displays
https://bugs.launchpad.net/bugs/437173
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