Bug 23720

Summary: 1900x1280 dell screen switch causes blank screen
Product: xorg Reporter: Bryce Harrington <bryce>
Component: Driver/intelAssignee: Wang Zhenyu <zhenyu.z.wang>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium Keywords: NEEDINFO
Version: 7.4 (2008.09)   
Hardware: x86 (IA32)   
OS: Linux (All)   
i915 platform: i915 features:
Description Flags
XorgLogOld.txt none

Description Bryce Harrington 2009-09-04 12:31:28 UTC
Forwarding this bug from Ubuntu reporter Onno Timmerman:

when switching from laptop screen to my dell screen 1900x1280 it gives a blank screen. Also on startup it gives blank black.

[Original Description]
laptop dell E4300
dell port replicator
screen del 1900x1280
ubuntu 9.04

problem: when switching from laptop screen to my dell screen 1900x1280 it gives a blank screen. Also on startup it gives blank black. 

First switch from screen by truning laptop screen off go to resolution 1280x1200 on the monitor. Work for about 10 minitus and then switch the screen to 1900x1280.

Don't leave your computer for more then x minutes else you never know if you need to repeat the process to get the native screen resolution of your 24'

Architecture: amd64
DistroRelease: Ubuntu 9.04
Package: xorg 1:7.4~5ubuntu18
PackageArchitecture: amd64
 PATH=(custom, user)
ProcVersion: Linux version 2.6.28-15-generic (buildd@yellow) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #49-Ubuntu SMP Tue Aug 18 19:25:34 UTC 2009
Uname: Linux 2.6.28-15-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
Comment 1 Bryce Harrington 2009-09-04 12:32:02 UTC
Created attachment 29238 [details]
Comment 2 Bryce Harrington 2009-09-04 12:32:20 UTC
Created attachment 29239 [details]
Comment 3 Bryce Harrington 2009-09-04 12:32:32 UTC
Created attachment 29240 [details]
Comment 4 Wang Zhenyu 2009-09-08 19:51:42 UTC
Remove the virtual setting in xorg.conf, that'll limit the max resolution you could use.

X log with ModeDebug on?
Comment 5 Gordon Jin 2009-09-14 20:46:05 UTC
unblocking Q3 release
Comment 6 Gordon Jin 2010-04-12 00:04:50 UTC
Bryce, do you still pursue this bug? We need the requested info as we can't reproduce it.
Comment 7 Chris Wilson 2010-07-18 09:20:05 UTC
Timeout. There's not enough information here to diagnose the issue. For instance, it doesn't actually sound like a modesetting error but more to do with the extended desktop?

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