[Intrepid] screen goes black after upgrading to kernel 2.6.27-13-generic
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Critical
|
Unassigned | ||
Intrepid |
Fix Released
|
Critical
|
Stefan Bader |
Bug Description
Binary package hint: linux-image
Hi!
My pc is a DELL 830.
As the subject states, screen goes black after dist-upgrading to proposed kernel 2.6.27-13. Restart is possible using RSEIUB. Booting with 2.6.27-12 works fine.
I'll start attaching both "messages" and "xorg.log" for 2.6.27-12 and 13. Suffix of the file designate the kernel that was used.
I remain at you disposal for any needed further information.
Best regards.
Luca
---
SRU justification:
Impact: One of the stable release updates for Intrepid changed the size of an acpi integer from 32 to 64bit on 32bit builds. This had a bad side effect when using closed source graphics drivers on machines that exposed video adapters via acpi tables. On those systems the start of X locked up with a solid black screen without any chance to type normal commands (or change to the terminal).
More recent NVidia drivers (180) work with that change but the default in intrepid is 177.
Fix: Revert the change to acpi integer size (and one follow-up patch to this).
Testcase: Tested by affected users.
Changed in linux: | |
assignee: | nobody → stefan-bader-canonical |
importance: | Undecided → Critical |
status: | New → In Progress |
description: | updated |
Changed in linux: | |
status: | In Progress → Fix Committed |
Always me.
Just tried with another pc and, again, screen goes black.
This time is again a dell but with an ati video card so, I guess, it does not depends upon video card. Pc is a DELL OPTIPLEX 740.
I'll attach messages e xorg.log from this boot too.
Ask me whatever you want, I remain at your disposal for further information.
Best regards.
Luca