[Bug 601376] Re: can't boot with 2.6.35-6.9 (and newer) in maverick

[sam tygier]

** Description changed:

+ The kernel has become fussy about EDID information from the monitor.
+ When using kernel mode setting (KMS) the kernel will refuse to setup a
+ monitor with invalid EDID (even if those which worked with previous
+ kernels).
+ 
+ Radeon still has user mode setting, which seems to bypass the EDID
+ strictness. so to boot one can append the following to the grub kernel
+ line:
+ 
+ radeon.modeset=0
+ 
+ == original description ==
+ 
  i install maverick with todays live cd. after install there was a lot of
  updates available (including xorg and kernel). after these updates i
  can't boot. i get a stuck at a blank screen after grub. i can't switch
  VT. same happens even with recovery mode.
  
  if i select the old kernel 2.6.34-5.14 at grub i can boot fine.
  
  i tried to use "ubuntu-bug linux" to report the issue, but i says "This is not a genuine Ubuntu package" i guess this is because i am booted with an old kernel. so please let me know what info you might need. i'll attach syslog, because that defiantly has some interesting messages.  there is a failed boot starting at Jul  3 14:32:00
- --- 
+ ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  AplayDevices: aplay: device_list:235: no soundcards found...
  Architecture: amd64
  ArecordDevices: arecord: device_list:235: no soundcards found...
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 10.10
  HibernationDevice: RESUME=UUID=39a09ba5-66d6-431f-94fc-b6b8c5550a28
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100605)
  Package: linux (not installed)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-7-generic root=UUID=46ef5009-4985-4715-9265-5851f8956be8 ro quiet splash
  ProcEnviron:
-  LANG=en_GB.UTF-8
-  SHELL=/bin/bash
+  LANG=en_GB.UTF-8
+  SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.35-7.12-generic 2.6.35-rc4
  Regression: Yes
  RelatedPackageVersions: linux-firmware 1.37
  Reproducible: Yes
  RfKill:
-  
+ 
  Tags: maverick graphics regression-potential needs-upstream-testing
  Uname: Linux 2.6.35-7-generic x86_64
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
  dmi.bios.date: 11/07/2007
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 6.00
  dmi.board.name: S2696
  dmi.board.vendor: Tyan Computer Corporation
  dmi.chassis.type: 6
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd11/07/2007:svn:pn:pvr:rvnTyanComputerCorporation:rnS2696:rvr:cvn:ct6:cvr:

-- 
can't boot with 2.6.35-6.9 (and newer) in maverick
https://bugs.launchpad.net/bugs/601376
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