[Bug 562138] Re: radeon KMS causes corrupt VGA output on X1400

[Zsolt Présing]

** Description changed:

  Binary package hint: xorg
  
  Booting up the latest 10.04 daily live-cd, the VGA output is unusable.
  It looks like an incorrect frequency, and the screen size is wrong (it's
  too narrow for the resolution). The wavering/out-of-phase-ness is so bad
  that it's impossible to read. This happens on both the X console and
  X11, and goes away when I use the internal laptop LCD instead (LVDS). If
  I use both screens in a mirror or extend mode, the same problems occur.
  So, this led me to believe that the problem might be with Kernel Mode
  Setting (KMS).
  
  I added the options:
  "radeon.modeset=0 vga=771"
  to the livecd and, voila, no more corruption. Everything works again, and I can use my big LCD via VGA!
  
  I've attached as much information as I can; I can also show a video of
  the corruption. I had Ubuntu 8.10 on my computer previously; it's a Dell
  Inspiron 6400 with Mobility X1400 graphics from ati. I'm using the April
  13th Daily LiveCD here, but the corruption was evident at least with the
  latest Beta livecd.
  
  Let me know if I can give any more information!
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xorg 1:7.5+5ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-20.30-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-20-generic i686
  Architecture: i386
  Date: Tue Apr 13 04:48:04 2010
  DkmsStatus: Error: [Errno 2] No such file or directory
  GdmLog1: Error: command ['gksu', '-D', 'Apport', '--', 'cat', '/var/log/gdm/:0.log.1'] failed with exit code 1: cat: /var/log/gdm/:0.log.1: No such file or directory
  GdmLog2: Error: command ['gksu', '-D', 'Apport', '--', 'cat', '/var/log/gdm/:0.log.2'] failed with exit code 1: cat: /var/log/gdm/:0.log.2: No such file or directory
  LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100413)
  MachineType: Dell Inc. MM061
  ProcCmdLine: initrd=/ubninit file=/cdrom/preseed/hostname.seed boot=casper quiet radeon.modeset=0 vga=771 BOOT_IMAGE=/ubnkern
  ProcEnviron:
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 04/20/2007
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A15
  dmi.board.name: 0XD720
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA15:bd04/20/2007:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0XD720:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: MM061
  dmi.sys.vendor: Dell Inc.
  glxinfo: Error: [Errno 2] No such file or directory
  system:
-  distro:             Ubuntu
-  codename:           lucid
-  architecture:       i686
-  kernel:             2.6.32-20-generic
+  distro:             Ubuntu
+  codename:           lucid
+  architecture:       i686
+  kernel:             2.6.32-20-generic

-- 
radeon KMS causes corrupt VGA output on X1400
https://bugs.launchpad.net/bugs/562138
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