Kernel 3.5.0-27 fails to boot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
High
|
Unassigned |
Bug Description
Running Ubuntu 12.04LTS x86-64 on a Sager P170EM Core i7 laptop, after upgrading to kernel 3.5.0-27 the screen turns off upon starting the kernel boot. There does not appear to be a running kernel at this point. ctrl-alt-delete will immediately reboot the system. Selecting the previous kernel, 3.5.0-26, yields a functioning Ubuntu system. Selecting single-user mode for the kernel boot of 3.5.0-27 also results in the LCD shutdown and no evidence of a running kernel.
In performing a google search to see if there was a simple fix for this (e.g. GRUB configuration fix), I noticed that this problem is reported in other forums for some IBM Thinkpads.
Running through a few earlier kernels in the 3.5.0 series, every one I tried yielded a working Ubuntu system. Running the memory test found no issues on my hardware.
Given that there is no kernel output (even alt-F1 yields nothing), there is no further information I can provide on this failure.
lsb_release -rd output:
Description: Ubuntu 12.04.2 LTS
Release: 12.04
apt-cache output:
Installed: 3.5.0-27.
Expected result: system boot
Actual result: LCD shutdown, no evidence of kernel boot
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1167341
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.