Bug 231661

Summary: intel modesetting driver produces "melting screen" effect on laptop LVDS
Product: [Fedora] Fedora Reporter: Joe Ammond <joe.ammond>
Component: xorg-x11-drv-i810Assignee: Adam Jackson <ajax>
Status: CLOSED RAWHIDE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: mcepl, mcepl, mishu, xgl-maint
Target Milestone: ---Keywords: Patch
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-04-02 21:18:55 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:
Attachments:
Description Flags
Xorg.0.log from the 'intel' driver
none
Xorg.0.log from the 'i810' driver
none
xorg.conf
none
"screenshot" of the problem
none
A patch to i830_display.c
none
log from a working driver
none
Working Xorg.0.log none

Description Joe Ammond 2007-03-09 21:08:19 UTC 
Description of problem:
The intel modesetting driver doesn't work on my HP NC6320. When I switch to the
intel driver and restart X, the LVDS takes on a greenish-melting effect that I
can't adequately describe. The external HP 1730 flat panel comes up in the
correct resolution. No amount of 'xrandr' will get the LVDS to display properly.
I'll snap a picture of the display tonight with my digital camera and attach.

Hardware config is:
HP NC6320
T7400 Core2 Duo CPU
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML
Express Integrated Graphics Controller (rev 03)



Version-Release number of selected component (if applicable):
xorg-x11-drv-i810-1.6.5-13.fc7.i386



How reproducible:
Every time.

Steps to Reproduce:
1. Install FC6T2 on an NC6320
2. Change "i810" to "intel" in /etc/X11/xorg.conf, restart X
3.
  
Actual results:
"Melting" screen effect.

Expected results:
Working X display.

Additional info:
Comment 1 Joe Ammond 2007-03-09 21:09:34 UTC 
Created attachment 149736 [details]
Xorg.0.log from the 'intel' driver

Log from the 'intel' driver.
Comment 2 Joe Ammond 2007-03-09 21:11:54 UTC 
Created attachment 149737 [details]
Xorg.0.log from the 'i810' driver

Xorg.0.log from the 'i810' driver. I do have to use '915resolution' to get X to
display at 1400x1050 (I know, it's an evil hack).
Comment 3 Joe Ammond 2007-03-09 21:12:18 UTC 
Created attachment 149738 [details]
xorg.conf
Comment 4 Joe Ammond 2007-03-09 21:13:16 UTC 
One comment I forgot to add: to get the panel's native resolution (1400x1050), I
have to use the evil 915resolution hack. I did disable it when I tried the intel
driver, tho.
Comment 5 Joe Ammond 2007-03-14 14:19:42 UTC 
Created attachment 150037 [details]
"screenshot" of the problem

A picture of the screen from my digital camera. I apologise for taking so long
to get it.
Comment 6 Joe Ammond 2007-03-23 21:59:35 UTC 
I've done some investigation on this bug. I pulled the xorg sources from git and
did a complete build. The latest driver from git works better than the current
one in rawhide, but doesn't work completely. With the following patch it works
perfectly on this hardware.
Comment 7 Joe Ammond 2007-03-23 22:01:10 UTC 
Created attachment 150801 [details]
A patch to i830_display.c

Found this patch in various places, specifically
https://bugs.freedesktop.org/show_bug.cgi?id=9076
Comment 8 Joe Ammond 2007-03-23 22:02:01 UTC 
Created attachment 150802 [details]
log from a working driver
Comment 9 Joe Ammond 2007-03-31 19:48:08 UTC 
The latest version of xorg-x11-drv-i810 works on my laptop now.

xorg-x11-drv-i810-1.6.5-16.fc7.i386
xorg-x11-server-Xorg-1.2.99.903-2.fc7.i386

This bug can be closed.
Comment 10 Joe Ammond 2007-03-31 19:49:45 UTC 
Created attachment 151363 [details]
Working Xorg.0.log
Comment 11 Adam Jackson 2007-04-02 21:18:55 UTC 
Marking resolved as per comment #9