Bug 803099

Summary:	radeon: sudden blackscreen on switching vt-x
Product:	[openSUSE] openSUSE 12.3	Reporter:	Elmar Stellnberger <estellnb>
Component:	Kernel	Assignee:	Takashi Iwai <tiwai>
Status:	RESOLVED WONTFIX	QA Contact:	E-mail List <qa-bugs>
Severity:	Minor
Priority:	P5 - None	CC:	bjoernv
Version:	RC 1
Target Milestone:	---
Hardware:	x86-64
OS:	SUSE Other
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	/var/log/messages /var/log/messages (frontman; another crash)

Description Elmar Stellnberger 2013-02-11 15:24:10 UTC

User-Agent:       Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:18.0) Gecko/20100101 Firefox/18.0

During bootup I have been switching the virtual terminal from vt-8 to vt-x. Suddenly I got a black screen the backlight flashing (once on, then off). Please have a look at the dmesg to see what has been happening. It was still possible to escape via the SysRq-keys Ctrl-PrScr-S/U/B. To me it looks like if something with the KMS would be screwed up.

Reproducible: Couldn't Reproduce

Comment 1 Elmar Stellnberger 2013-02-11 15:24:35 UTC

Created attachment 524135 [details]
/var/log/messages

Comment 2 Elmar Stellnberger 2013-02-13 12:23:21 UTC

Created attachment 524457 [details]
/var/log/messages (frontman; another crash)

  Now, that does not only happend on my FS Amilo/x86_64 notebook but also on my GC Frontman/i686.
  Please have a look.

Comment 3 Elmar Stellnberger 2013-02-13 12:24:23 UTC

/var/log/messages (frontman; another crash): it was possible to shut down the computer with ctrl-alt-entf after it had blackscreened; messages was taken on next bootup.

Comment 4 Elmar Stellnberger 2013-02-20 10:40:23 UTC

The same occurrence can evoked by initiating a hibernation deterministically. Please care about this bug at Bug 804649.

Comment 5 Takashi Iwai 2014-03-11 10:54:18 UTC

Is the problem still present with openSUSE 13.1?

Comment 6 Takashi Iwai 2014-04-14 15:30:33 UTC

Comment 7 Elmar Stellnberger 2014-07-07 15:52:41 UTC

Well, there still is a similar issue with openSUSE 13.1. If KDE has finished to boot then the screen turns black  suddenly and stays black until I switch multiple times to another vt-X and back. The error has persisted since long and still occurs given the newest updates having been applied recently to oS13.1.

Comment 8 Jeff Mahoney 2015-01-05 15:55:42 UTC

openSUSE 12.3 has passed out of maintenance. The final openSUSE 12.3 kernel update was released 19 Dec 2014.

The final commit in the changelog reads:
Source Timestamp: 2014-12-16 21:27:58 +0100
GIT Revision: 4c885a114e790eff4a123e7617a06547021a5fb2
GIT Branch: openSUSE-12.3
Distribution: openSUSE 12.3
* Tue Dec 16 2014 bp@suse.de
- Update config files.
- commit 4c885a1

* Tue Dec 16 2014 bp@suse.de
- x86-64, espfix: Don't leak bits 31:16 of %esp returning to
  16-bit stack (bsc#907818,CVE-2014-9090).
- x86, espfix: Make espfix64 a Kconfig option, fix UML
  (bsc#907818,CVE-2014-9090).
- x86, espfix: Make it possible to disable 16-bit support
  (bsc#907818,CVE-2014-9090).
- x86_64/entry/xen: Do not invoke espfix64 on Xen
  (bsc#907818,CVE-2014-9090).
- x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
  (bsc#907818,CVE-2014-9090).
- x86_64, traps: Rework bad_iret (bsc#909077,CVE-2014-8133).
- x86_64, traps: Stop using IST for #SS (bsc#907818,
  CVE-2014-9090, CVE-2014-9322).
- Update config files.
- Refresh
  patches.arch/stack-unwind-cfi_ignore-takes-more-arguments.
- Refresh patches.arch/x86_64-unwind-annotations.
- Refresh patches.xen/xen3-patch-2.6.31.
- commit 23e4e06

If you are still experiencing the reported issue, please re-test with openSUSE 13.1, 13.2, or (ideally) openSUSE Factory. If the issue still exists