Bug 8874

Summary:	xorg crashes when switching virtual console with mga g550
Product:	DRI	Reporter:	markus gapp <markus.gapp>
Component:	DRM/other	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED INVALID	QA Contact:
Severity:	normal
Priority:	high	CC:	hramrach
Version:	unspecified
Hardware:	Other
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description markus gapp 2006-11-03 09:32:45 UTC

hi,

on an amd64 with 64 bit gentoo linux, kernel 2.6.18 smp, xorg 7.1, mesa 6.5.1, 
libdrm 2.2.0 and mga dirver 1.4.4 X freezes when switching back to a running 
instance from another virtual console.

/var/log messages gets filled with
[drm:mga_dma_reset] *ERROR* mga_dma_reset called without lock held
repeatedly, xorg.log says:
(EE) MGA(0): [dri] Idle timed out, resetting engine...

thank you

markus

Comment 1 Tilman Sauerbeck 2006-11-03 10:25:21 UTC

Does it lock up when you switch from a virtual console to X, or when you switch
from X to a virtual console?

Does using an older version of the MGA driver (1.4.3 or 1.4.2) fix it?

Comment 2 markus gapp 2006-11-03 14:58:01 UTC

I don't actually know when the error is happening, however the log messages 
begin to appear as soon as i try to switch back from a text virtual console to 
a previously functioning X which appears to be frozen. the screen contents is 
grabled in the upper third, the other parts show a static picture of the 
desktop.

A second X instance doesn't show up at all but freezes the whole system making 
a reboot necessary. Could not produce error messages in the logs for this case 
yet.

yes it also happens with version 1.4.2 and 1.4.3 (and 1.4.4) of the mga driver.

thanx, markus

Comment 3 Jesus Rodriguez 2006-11-16 23:36:16 UTC

Same thing here, under the following circumstances (BTW, I'm using FBDev):

1) Switching to VC and back again to X
2) Starting beryl/compiz (but NOT xcompmgr)
3) Sometimes, starting glxgears

Comment 4 Jesus Rodriguez 2006-11-17 05:52:00 UTC

Edit comment #3: My card is a G200

Comment 5 Michal Suchanek 2011-09-27 07:41:41 UTC

isn't this bug 8191 ?

Comment 6 Martin Peres 2019-10-14 13:20:02 UTC

Hi,

Freedesktop's Bugzilla instance is EOLed and open bugs are about to be migrated to http://gitlab.freedesktop.org.

To avoid migrating out of date bugs, I am now closing all the bugs that did not see any activity in the past year. If the issue is still happening, please create a new bug in the relevant project at https://gitlab.freedesktop.org/drm (use misc by default).

Sorry about the noise!

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