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[Bug 437173] Re: [GM45] Bad resulution choice for mirror mode with two 16:10 displays

 

** Description changed:

  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
+ 
+ [lspci]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
+     	Subsystem: Dell Device [1028:024f]

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