Red Hat Bugzilla – Bug 857458
Intermittend dark screen just after grub
Last modified: 2013-02-26 10:18:16 EST
Description of problem:
Screen goes dark when powering up and selecting a system to boot in grub
Version-Release number of selected component (if applicable):
kernel-3.4.9-2.fc16.x86_64 on Toshiba NB555D
Occurs once in a 10 or 20 boots, whether in a cold boot, or resuming from hibernate.
Steps to Reproduce:
1. Boot system with the power switch
2. Select a system with grub
Sometimes hangs with completely dark screen, right after "Loading initial RAMDISK". No disk activity visible. Works correctly if rebooted with CTRL-ALT-DEL
I believe the problem occurs before recording in /var/log/messages begins, so I don't know how to provide information on what is happening when the machine hangs.
# Mass update to all open bugs.
Kernel 3.6.2-1.fc16 has just been pushed to updates.
This update is a significant rebase from the previous version.
Please retest with this kernel, and let us know if your problem has been fixed.
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is still present, please change the version field to the newest release you have
encountered the issue with. Before doing so, please ensure you are testing the
latest kernel update in that release and attach any new and relevant information
you may have gathered.
If you are not the original bug reporter and you still experience this bug,
please file a new report, as it is possible that you may be seeing a
(Please don't clone this bug, a fresh bug referencing this bug in the comment is sufficient).
Created attachment 634114 [details]
I just experienced the bug with kernel 3.6.2-1.fc16.x86_64 #1 SMP . The attached shows /var/log/messages with the boot to a dark (normal) screen followed by a CTRL-ALT-DEL boot that was successful. The unsuccesful part of this file contains messages like the following:
"916 Oct 26 22:33:05 toshlocalhost kernel: [ 50.701672] radeon 0000:00:01.0: couldn't schedule ib
917 Oct 26 22:33:05 toshlocalhost kernel: [ 50.701687] [drm:radeon_cs_ib_chunk] *ERROR* Failed to schedule IB !
Created attachment 635721 [details]
another occurrence, not edited
Created attachment 648764 [details]
another occurrence, from shutdown in working mode, through the failure, then a reboot to recovery mode prompt. Exiting from that resulted in a successful boot (not shown).
When I had the failure, I saw the Toshiba boot screen, then alternating gray and dark screens. Sometimes I got horizontal colored streaks and dots. To reboot, I tried CTRL-ALT-F1, CTRL-ALT-BKSP, and CTRL-ALT-DEL with and without SHIFT. CTRL-ALT-DEL resulted in the reboot shown.
My kernel is now kernel-3.6.6-1.fc16.x86_64.
I am about to apply the following updates. Perhaps they will help.
libfm.x86_64 1.1.0-1.fc16 updates
libfm-gtk.x86_64 1.1.0-1.fc16 updates
mailx.x86_64 12.5-4.fc16 updates
pcmanfm.x86_64 1.1.0-1.fc16 updates
selinux-policy.noarch 3.10.0-96.fc16 updates
selinux-policy-targeted.noarch 3.10.0-96.fc16 updates
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