Bug 180003

Summary:	matroxfb loaded causes X.org not to show in init 5 on G200
Product:	[Fedora] Fedora	Reporter:	Adam Pribyl <covex>
Component:	udev	Assignee:	Harald Hoyer <harald>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4	CC:	deisenst
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-02-04 16:59:30 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Adam Pribyl 2006-02-04 14:38:18 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20060202 Fedora/1.7.12-1.5.2

Description of problem:
I saw there is few other bugs about udev-071. I have following problem after update to udev.i386 071-0.FC4.2 with Matrox G200 card. It seems that with this udev version kernel loads matroxfb on X startup. As far this could be nice, as long as I want to use matroxfb and it does not cause any other troubles. But in this case it does. When X is starting and also matroxfb is loaded the screen remains blank in init 5, leaving user without any clue what's wrong. Switching to Alt+F1 shows FB console, switching back to Alt+F7 shows X login.

Using kenrel option "nofb" or "video=matroxfb:off" is useless as this module is most probably loaded by udev. I do not find any way how to disable fb loading. I may be wrong this is cause by udev, but it is deffinitely not due to kernel update - others only KDE and mozilla stuff were updated, so these I do not expect to cause it.

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

How reproducible:
Always

Steps to Reproduce:
1.Update to udev 071-0.FC4.2
2.Have matrox g200
3.start to init 5

Actual Results: Blank screen.

Expected Results: X login screen.

Additional info:

These are messages from kernel, they were not present before udev update:
Feb 4 15:29:12 localhost kernel: matroxfb: Matrox Millennium G200 (AGP) detected
Feb 4 15:29:12 localhost kernel: PInS memtype = 5
Feb 4 15:29:12 localhost kernel: matroxfb: MTRR's turned on
Feb 4 15:29:12 localhost kernel: matroxfb: 640x480x8bpp (virtual: 640x13107)
Feb 4 15:29:12 localhost kernel: matroxfb: framebuffer at 0xDD000000, mapped to 0xe1480000, size 8388608
Feb 4 15:29:12 localhost kernel: Console: switching to colour frame buffer device 80x30
Feb 4 15:29:12 localhost kernel: fb0: MATROX frame buffer device

Comment 1 David Eisenstein 2006-02-04 15:53:16 UTC

Adam, this problem seems very similar to what Fred New reports in Bug #179041.
What happens if you try the workaround Fred tried in Bug 179014 comment 12?

Comment 2 Adam Pribyl 2006-02-04 16:52:46 UTC

Are you sure you meant bug #179041? It is about "i810 video and generic LCD are
not dectected during install" reported by Seth Doty and there is no comment 12.

Comment 3 Adam Pribyl 2006-02-04 16:57:10 UTC

Oh I see it is typo in second link. It is really #179041 and it seems similar
except it is different video card and I do not have any signs of X starting,
simply monitor clicks few time and leave black. If thats not matrox specific I
am aware this is common problem of simultaneous inicialization of FB and X.

Comment 4 Adam Pribyl 2006-02-04 16:59:30 UTC


*** This bug has been marked as a duplicate of 179041 ***