[Bugme-new] [Bug 10892] New: Sometime (often) X come out blank (black screen) on cold boot - Intel chipset

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Tue Jun 10 05:33:28 PDT 2008


http://bugzilla.kernel.org/show_bug.cgi?id=10892

           Summary: Sometime (often) X come out blank (black screen) on cold
                    boot - Intel chipset
           Product: Other
           Version: 2.5
     KernelVersion: 2.6.26-rc5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Other
        AssignedTo: other_other at kernel-bugs.osdl.org
        ReportedBy: romano.giannetti at gmail.com


Latest working kernel version: 2.6.25
Earliest failing kernel version: After 2.6.25, exatcly don't know, probably
2.6.26-rc3
Distribution:Ubuntu 8.04 Hardy
Hardware Environment: toshiba U305 intel-based laptop, see
http://bugzilla.kernel.org/attachment.cgi?id=16067&action=view
Software Environment:xserver-xorg-video-intel  2:2.2.1-1ubuntu12, see also
http://bugzilla.kernel.org/attachment.cgi?id=16066&action=view
Problem Description:

Sometime, on cold boot (after the laptop has been shut off), when the screen
switch from the Ubuntu startup to gdm, the screen goes blank. Forever.
Rebooting (warm) with the same kernel cures it, sometime. If I reboot 2.6.25 it
cures it everytime. 

Otherwise, the system seems to be working.

It was difficult to see because I almost never do a cold boot, the laptop is
either sleeping (s2ram) or on, or (warm) rebooted when I test a new kernel. 

Helps / tricks to gather more data when it happens are welcome.


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