Bug 439681

Summary: gnome livecd boots then turns backlight off
Product: [Fedora] Fedora Reporter: David Timms <dtimms>
Component: xorg-x11-drv-i810Assignee: X/OpenGL Maintenance List <xgl-maint>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: high    
Version: rawhide   
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: 20080327-Snapshot Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-03-31 09:17:18 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
/var/log/messages bzip2'ed 16kB
none
Xorg log compressed none

Description David Timms 2008-03-30 11:56:23 UTC
Description of problem:
the rhgb is shown OK. as gdm is displayed, the backlight gets turned off.

Version-Release number of selected component (if applicable):
F9Beta gnome live cd iso.

How reproducible:
3x boot ups have occurred identically.

Steps to Reproduce:
1. download live cd
2. live-cd-usb 
3. boot usb
4. machine boots {10 secs}
5. text boot up process scrolls down screen
6. rhgb: fedora-show details... finishes
  
Actual results:
looks like machine powered off. power led and battery charge leds are still lit.
on closer inspection and in the right light, backlight is off. 22:50

Expected results:
backlight on. then you could easily choose the login button.

Additional info:
notebook pc: hp compaq nx6320. issue not present with F8 up2date 2008-03-28.

waiting for the screensaver to start (since the session automatically logs in);
then mouse/kb to exit makes the backlight turn on.

can also trick the machine into backlight into turning on by _turning off_ the
notebook power supply.

Comment 1 David Timms 2008-03-30 12:12:05 UTC
Created attachment 299620 [details]
/var/log/messages bzip2'ed 16kB

Noticed some gdm debug bits so including this incase it is relevant
The machine is also offering to send kernel oopses to upstream, I let it do
this.

Comment 2 David Timms 2008-03-30 12:21:27 UTC
Created attachment 299621 [details]
Xorg log compressed

Noticed some failures at setting modes:
====
(II) intel(0): Modeline "1024x768"x0.0	 65.00	1024 1048 1184 1344  768 771
777 806 -hsync -vsync (48.4 kHz)
(II) intel(0): EDID vendor "LPL", prod id 47872
(EE) intel(0): Mode 1280x1024 does not fit virtual size 1024x1024 - internal
error
(II) intel(0): fbc disabled on plane a
====
However, without the time in there I don't know if that was occurring as gdm
started.

Comment 3 Jeremy Katz 2008-03-30 16:38:59 UTC
Can you try with the new rawhide image that went up on Friday?  This should be
fixed with it.

Comment 4 David Timms 2008-03-31 09:17:18 UTC
I retested with the torrent -
Rawhide-20080327-Snapshot-x86_64-Live
The backlight now stays on during gdm display and login, and into the user session.
Screensaver dimmed screen after 11 minutes and mouse movement woke the screen OK.
Resolved.