Bug 636326 - After kernel update, screen goes blank during boot
Summary: After kernel update, screen goes blank during boot
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-nouveau
Version: 14
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Ben Skeggs
QA Contact: Fedora Extras Quality Assurance
Whiteboard: AcceptedBlocker
: 630811 (view as bug list)
Depends On:
Blocks: F14Blocker, F14FinalBlocker 637926
TreeView+ depends on / blocked
Reported: 2010-09-21 22:23 UTC by W. Michael Petullo
Modified: 2010-10-11 20:45 UTC (History)
13 users (show)

Fixed In Version: kernel-
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-10-11 00:11:59 UTC

Attachments (Terms of Use)
dmesg from last properly-working kernel ( (52.69 KB, text/plain)
2010-09-22 11:24 UTC, Steven Usdansky
no flags Details

Description W. Michael Petullo 2010-09-21 22:23:12 UTC
Description of problem:
I recently updated my kernel from kernel- to kernel- No other packages were updated at the time. The update resulted in the system's screen going black during boot. Adding "nomodeset" to the kernel's boot arguments fixed the problem, but resulting in sub-optimal video.

Version-Release number of selected component (if applicable):

How reproducible:
Every time

Steps to Reproduce:
1. Upgrade to  kernel- and reboot.

Additional info:
The system is a MacBook 5,1 and uses the nouveau driver. Lspci reports, "02:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M] (rev b1)."

Comment 1 Steven Usdansky 2010-09-22 01:04:34 UTC
Same problem with both kernel- and kernel- kernel- is good.

~# lspci | grep VGA
02:00.0 VGA compatible controller: nVidia Corporation C78 [GeForce 9100] (rev a2)

Can boot with nomodeset parameter on the kernel line, but then can't use X with nouveau driver.

Comment 2 Steven Usdansky 2010-09-22 11:24:44 UTC
Created attachment 448912 [details]
dmesg from last properly-working  kernel (

kernel- boots properly.
kernel- does not boot properly.

First entry in changelog for kernel-
* Mon Sep 13 2010 Ben Skeggs <bskeggs@redhat.com> - nouveau: fix oops in acpi edid support

Comment 3 Steven Usdansky 2010-09-22 18:06:38 UTC
Can't duplicate the good result I had earlier with kernel- I just rebooted my desktop PC after having shut it off for several hours. However, kernel- still works for me

Comment 4 Ben Skeggs 2010-09-23 00:27:52 UTC
Can you retry with: http://koji.fedoraproject.org/koji/taskinfo?taskID=2482757

Comment 5 Steven Usdansky 2010-09-23 12:25:32 UTC
Shut the desktop down for about 10 min, then rebooted using kernel- Posting from that now, so I'd say it seems to work. Will report back if I encounter any problems after a longer shutdown

Comment 6 Steven Usdansky 2010-09-23 23:26:29 UTC
Everything seems to work properly after long (1 hr+) shutdowns. Problem appears to be fixed.

Comment 7 Ben Skeggs 2010-09-24 00:04:14 UTC
Thanks for letting us know :)

Comment 8 Ben Skeggs 2010-09-26 01:39:39 UTC
*** Bug 630811 has been marked as a duplicate of this bug. ***

Comment 9 W. Michael Petullo 2010-10-04 23:57:53 UTC
Seems fixed after I upgraded to kernel-2.6.36-0.32.rc6.git2.fc15.x86_64. I have been waiting for the next Fedora 14 kernel and will test it once it is available.

Comment 10 Adam Williamson 2010-10-08 15:47:09 UTC
Michael, did you test the kernel Ben linked to above?

proposing as F14Blocker to make sure this fix doesn't slip through the cracks.

Comment 11 James Laska 2010-10-08 16:30:53 UTC
If it helps, I was seeing this also with the reported kernel on my macbook

02:00.0 VGA compatible controller: nVidia Corporation C79 [GeForce 9400M] (rev b1)

Using, I no longer see the issue.

Comment 12 Adam Williamson 2010-10-08 16:35:05 UTC
This was discussed and accepted as a blocker at the 2010-10-08 review meeting.

Ben / kernel team, it would be great if you could push all the stuff you want in F14 and come up with a proposed final kernel by Monday; that way we can have it in TC1 for testing.

Comment 13 W. Michael Petullo 2010-10-10 23:18:21 UTC
kernel- solves this issue for me.

Comment 14 Adam Williamson 2010-10-11 00:11:59 UTC
-39 has been pushed stable, so let's close this.

Fedora Bugzappers volunteer triage team

Comment 15 W. Michael Petullo 2010-10-11 20:45:58 UTC
Confirmed fixed in

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