Bug 624236

Summary: Intermittent black screen on ThinkPad T510 when mode switch is attempted (Intel graphics, i5)
Product: [Fedora] Fedora Reporter: Bojan Smojver <bojan>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 14CC: anton, dougsland, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
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Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2011-10-04 00:24:54 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Bojan Smojver 2010-08-15 01:41:14 UTC
Description of problem:
Occasionally, mode switch on this system won't succeed on boot. The screen remains completely black, there is no disk activity and no key can bring anything back. The only fix is to power cycle the system.

Version-Release number of selected component (if applicable):
kernel-2.6.33.6-147.2.4.fc13.x86_64 (and others)

How reproducible:
Sometimes.

Steps to Reproduce:
1. Boot the system.
  
Actual results:
Sometimes mode switch fails, leaving the system with black screen and hung.

Expected results:
Should work.

Additional info:
http://www.smolts.org/client/show/pub_ebd16c9b-ba21-4d39-964a-cfd361713146

I searched Bugzilla for something similar and although there are some bugs that look marginally appropriate, this may in fact be something different. So, I'm opening a new one.

Comment 1 Chuck Ebbert 2010-08-17 02:29:24 UTC
Please try 2.6.34.3-37 from updates-testing.

Comment 2 Bojan Smojver 2010-08-30 01:45:07 UTC
OK, shall do. Although, I've seen this even with vanilla 2.6.35.

Comment 3 Bojan Smojver 2010-09-14 04:50:06 UTC
Haven't seen this particular thing for a while now, but because it is intermittent, I won't rule it out completely yet. I'm on 2.6.34.6-54.fc13.x86_64 right now.

Comment 4 Bojan Smojver 2011-04-03 04:28:31 UTC
Just seen this with kernel-2.6.35.12-88.fc14.x86_64. Moving to F-14.

Comment 5 Bojan Smojver 2011-10-04 00:24:54 UTC
Haven't seen this in a while with F-15. Closing.