Bug 470681 - xrandr causing screen flickering on 915GM laptop
Summary: xrandr causing screen flickering on 915GM laptop
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-i810
Version: 10
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Adam Jackson
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-11-08 20:21 UTC by Austin Foxley
Modified: 2018-04-11 14:12 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-09-05 17:51:48 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)
from current session (133.35 KB, text/plain)
2008-11-08 20:23 UTC, Austin Foxley
no flags Details

Description Austin Foxley 2008-11-08 20:21:04 UTC
Description of problem:
I'm seeing reproducible screen flickering on my rawhide laptop with a 915GM intel chip. It happens when gdm starts, when I start any wine app, and when I run 'xrandr' from the terminal.

From lspci:
00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 04)
00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 04)


Version-Release number of selected component (if applicable):
xorg-x11-drv-i810-2.5.0-1.fc10.i386

How reproducible:
Easiest way to see it is to just run xrandr.
  
Actual results:
Screen flickering. Seems to cause the background picture to break up and jump all around the screen. It doesn't go black, just does strange things to the image currently displaying.


Expected results:
No wacky flickering.

Let me know if anything else is needed. 

Oh, on a slightly offtopic question, I was wondering if I am supposed to be seeing pretty kernel modesetting on this hardware. ( Right now I'm just seeing the text mode plymouth startup )

Thanks!

Comment 1 Austin Foxley 2008-11-08 20:23:11 UTC
Created attachment 322968 [details]
from current session

Comment 2 Matěj Cepl 2008-11-09 00:14:04 UTC
Chmm, in the very end of the log is this line:

(EE) intel(0): underrun on pipe B!

Might be interesting.

And no, there is no kernel modesetting for intel chips, yet. As soon as it is available, it will be provided for Fedora 10 as update. Should happen soon.

Comment 3 Bug Zapper 2008-11-26 05:03:58 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 4 dima 2008-12-23 19:30:21 UTC
I have the same.

Comment 5 Austin Foxley 2009-09-05 17:51:48 UTC
This is fixed for me in Fedora 11.


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