Bug 718635

Summary:	Upgrade to 2.6.37.6-0.7-desktop made Radeon 9200 kernel mode setting fail
Product:	[openSUSE] openSUSE 11.4	Reporter:	Erkki Ruohtula <eru>
Component:	Kernel	Assignee:	E-mail List <kernel-maintainers>
Status:	RESOLVED DUPLICATE	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None	CC:	jdelvare
Version:	Final
Target Milestone:	---
Hardware:	x86-64
OS:	openSUSE 11.4
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Erkki Ruohtula 2011-09-16 20:37:21 UTC

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2

After initial installation from OpenSUSE 11.4 final DVD, booting and entering X11 went smoothly. but some later upgrade upgraded the kernel. After this, booting made the screen suddenly go blank. Judging by the sounds, booting still continued, but nothing was visible.

Failsafe boot succeeded. After some experiments found that putting "nomodeset x11failsafe" on the default kernel command line at least worked around the problem.


Reproducible: Always

Steps to Reproduce:
1. boot 2.6.37.6-0.7-desktop on machine with Radeon 9200 PRO with default kernel command line
2.
3.
Actual Results:  
Screen goes blank, and remains so soon after boot

Expected Results:  
Shown the splash screen.

Display-related lines from "lspci":

01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 PRO] (rev 01)
01:00.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200 PRO] (Secondary) (rev 01)

Comment 1 Jean Delvare 2011-09-30 15:18:44 UTC

Please booting with i2c_algo_bit.bit_test=0. It should be a suitable workaround until the bug is fixed.

Comment 2 Jean Delvare 2011-10-11 12:53:55 UTC

Definitely the same bug as #712023, just for a different openSUSE version.

*** This bug has been marked as a duplicate of bug 712023 ***