==== workaround "black display issue" by disabling kms ====

  * [[software]]: [[linux]] [[kernel]] 2.6.32 , [[xorg]]
  * [[hardware]] : [[ati]] [[radeon]] [[igp]] [[320m]] 

  $ dmesg
  agpgart-ati 0000:00:00.0: Ati IGP320/M chipset
  reserve_ram_pages_type failed 0x2c388000-0x2c389000, track 0x10, req0x10

 * https://bugzilla.redhat.com/show_bug.cgi?id=602055
 * http://forums.gentoo.org/viewtopic-p-6296933.html

This can be workarounded easly by disabling [[KMS]] for this driver :

  grep modeset /etc/modprobe.d/radeon.conf 
  options radeon modeset=0

Tested on :
  
  $ X -version
  X.Org X Server 1.7.7
  Release Date: 2010-05-04
  X Protocol Version 11, Revision 0
  Build Operating System: Linux 2.6.32.14-dsa-ia32 i686 Debian
  Current Operating System: Linux nrv 2.6.32-trunk-686 #1 SMP Sun Jan 10 06:32:16 UTC 2010 i686
  Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-trunk-686 root=UUID=29763d26-afc7-4dff-90f7-c7fa247dc9d0 ro irqpoll
  Build Date: 03 June 2010  04:08:50PM
  xorg-server 2:1.7.7-2 (Julien Cristau <jcristau@debian.org>) 
  Current version of pixman: 0.16.4


More :

  * http://bugs.debian.org/580661
  * http://wiki.archlinux.org/index.php/ATI
  * http://en.wikipedia.org/wiki/Mode-setting#Linux

related: [[agpgart]]

===== MORE =====

@TaG: [[xrandr]] [[linux-kernel]] [[igp]] LinuX KerneL ModE SettinG

{{http://farm5.static.flickr.com/4005/4586093385_7cf4f04b71.jpg}}