[linux-image-2.6.32-21-generic] i855 won't display

[Kevin Williams]

Regression from 2.6.32-19. On this Gateway M275 convertible tablet (i855 chipset & video), -21 will boot, but either at the point of displaying the "Ubuntu" splash or just before, the screen will go black and it's not possible to switch to a pty. Magic SysRq key does not appear to be functional either.

I can boot successfully into recovery mode, and X will come up if I have it use a generic display configuration.

With -19 it works as expected.

I have all updates as of 2010-04-26 1239CDT installed.
---
Architecture: i386
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: linux (not installed)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
Tags: lucid
Uname: Linux 2.6.33-020633-generic i686
UnreportableReason: The running kernel is not an Ubuntu kernel
UserGroups: adm admin audio cdrom dialout fuse lpadmin netdev plugdev sambashare video

---
Architecture: i386
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: linux 2.6.32.21.22
PackageArchitecture: i386
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
Tags: lucid
Uname: Linux 2.6.34-020634rc6-generic i686
UnreportableReason: The running kernel is not an Ubuntu kernel
UserGroups: adm admin audio cdrom dialout fuse lpadmin netdev plugdev sambashare video

[Kevin Williams (bthylafh)]

The -19 release I have is 2.6.32-19.28, and my -21 is -21.32.

[Jeremy Foshee (jeremyfoshee)]

Hi bthylafh,

Please be sure to confirm this issue exists with the latest development release of Ubuntu. ISO CD images are available from http://cdimage.ubuntu.com/releases/ . If the issue remains, please run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 570299

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Kevin Williams (bthylafh)]

This bug still exists in linux-image-2.6.32-22.33. The laptop will, however, boot successfully on the 2.6.33-020633-generic kernel from ppa.launchpad.net/kernel-ppa/.

I'll attach the results of apport-collect shortly, while the laptop's booted on the .33 kernel.

[Kevin Williams (bthylafh)]

It's definitely not my software configuration. Same symptoms when I boot from the official 10.04 i386 livecd.

[Kevin Williams (bthylafh)]

Kernel 2.6.34-rc6-lucid from the same PPA works properly.

[Kevin Williams (bthylafh)]

apport information

[Gary M (garym)]

Possible duplicate of bug #566379 ?

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu development release http://cdimage.ubuntu.com/daily-live/current/ . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]