Bug 710763

Summary:	RV350 Visual corruption with two screens in gnome-shell
Product:	[Fedora] Fedora	Reporter:	subscriptions
Component:	xorg-x11-drv-ati	Assignee:	Jérôme Glisse <jglisse>
Status:	CLOSED DEFERRED	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	15	CC:	bugzilla, subscriptions, xgl-maint
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-05-26 16:35:51 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description subscriptions 2011-06-04 16:38:09 UTC

Description of problem:

Single screen display (laptop monitor) works correctly. When a second monitor is attached, nothing happens. When I open Displays to configure the additional monitor, visual corruption occurs on both displays (symptom a). I can switch into mirrored mode using the fn-F7 hotkey and then switch out of it, leaving both displays set to the same resolution. Switching either monitor to a higher but hardware-supported resolution causes the same visual corruption (symptom b).

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

Version: 6.14.1
Release: 1.20110504gita6d2dba6.fc15

(from "yum info xorg-x11-drv-ati")

How reproducible:

Always

Steps to Reproduce (a.):
1. Attach additional monitor

Steps to Reproduce (b.):
1. Change to mirrored mode with hotkey
2. Change out of mirrored mode using hotkey or the now usable interface
3. Increase the resolution output on either display

Actual results:

Visual corruption

Expected results:

a. Lack of visual corruption
b. Extended desktop with each display at its maximum resolution

Additional info:

Running on a Thinkpad T42 with a Radeon 9600 (listed as Gallium 0.4 on ATI RV350 in System Info). Notebook display has a resolution of 1400x1050. Secondary display (over VGA) has a resolution of 1600x1200. Mirrored mode uses a resolution of 1280x1024 on both displays. Extended mode works without visual corruption with both displays at 1280x1024.

Similar to this bug: https://bugzilla.redhat.com/show_bug.cgi?id=692191 but I experience far more severe visual corruption.

Comment 1 subscriptions 2011-06-04 18:19:31 UTC

Additional experimentation revealed the following:

Valid resolution combinations (notebook display, monitor):
   1400x1050, 1152x864
   Disabled , 1600x1200
   800x600  , 800x600
Resolutions that cause corruption:
   1400x1050, 1280x1024
   

I have also tried the fglrx driver but it does not recognize my video card.

Comment 2 Jason Smith 2012-05-26 06:35:56 UTC

    Thank you for taking the time to report this bug and I apologize for the delayed response. Updates to this package have been released since it was first reported. If you have time to update the package and re-test, please do so and report the results here. You can obtain the updated package by typing 'yum update xorg-x11-drv-ati' or using the graphical updater, Software Update.  If this error is still persistient on the current software package, please respond and attach a dmseg output in plain text format as well as a copy of the X Server config file if in use (/etc/X11/xorg.conf) as well as the X server log file (/var/log/Xorg.*.log).  Also if using a custom X Server config file, please test run system without the X Server config file to allow X to auto-detect hardware.

  If issue still exists after the above steps have been done, please respond with the above info for further review.

---
Jason
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Comment 3 subscriptions 2012-05-26 15:13:37 UTC

I'm sorry; I no longer have the hardware I was using at the time.

Comment 4 Jason Smith 2012-05-26 16:35:51 UTC

No problem, thank you for your response and I will close this bug for now.

---
Jason
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers