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[khul <klas@xxxxxxxxx>]

Public bug reported:

Something has changed which makes it impossible to change correctly
between different external screens.

If I boot without any external screen and then connect one, it is
recognised correctly. (In fact, it's switched on as soon as I select the
screen setting dialogue, and the window for the setting appears in the
new screen, which is not so good, in case there is something wrong with
the screen itself.) If I switch off the external screen and re-enter the
screen dialogue I only see the laptop screen, which is fine. However, if
I then connect a different external screen it seems to be identified as
the first screen I connected, and the available resolutions are not
correct. xrandr gives the same result. I also see many errors in syslog
saying "unable to read EDID block" and "no EDID data".

Switching from kernel 2.6.31-17 to 2-6-28-17 the touchpad does not work.
However, I can log in and use the stylus for input (tablet pc). In this
case, the external screens are identified correctly if I switch between
them. So it seems my hardware works OK. (Perhaps I have some odd
setting. I recently ran scratchbox and Xephyr for the first time, and I
had to explicitly specify the DISPLAY to bluetooth-applet since no
applet appeared on the screen. However, I didn't willingly change any
settings for X and the desktop, and bluteooth-applet works fine now
without any intervention.)

I tried following the command specified just below this form to report
this bug (which I noticed just as I was about to submit), i.e. ubuntu-
bug -p xserver-xorg-core.  However ubuntu-bug it tells me that the
commands -p/-P are deprecated,  so I'll just submit, hoping the
automatically collected information will suffice.

ProblemType: Bug
Architecture: amd64
Date: Wed Jan 20 11:33:24 2010
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/Xorg
MachineType: FUJITSU SIEMENS LIFEBOOK T5010
Package: xserver-xorg-core 2:1.6.4-2ubuntu4
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   product info: "O2Micro", "SmartCardBus Reader", "V1.0", ""
   manfid: 0xffff, 0x0001
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   5.0V 16-bit PC Card
   Subdevice 0 (function 0) [unbound]
ProcCmdLine: root=UUID=7587f7db-eb22-4250-9d2c-11a9de130ef7 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu10
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2.1
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
SourcePackage: xorg-server
Uname: Linux 2.6.31-17-generic x86_64
XsessionErrors:
 (gnome-settings-daemon:2224): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:2247): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (polkit-gnome-authentication-agent-1:2274): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
dmi.bios.date: 11/11/2008
dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd.
dmi.bios.version: Version 1.09
dmi.board.name: FJNB1EA
dmi.board.vendor: FUJITSU
dmi.board.version: CP378200-01
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU SIEMENS
dmi.chassis.version: T50__
dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvrVersion1.09:bd11/11/2008:svnFUJITSUSIEMENS:pnLIFEBOOKT5010:pvr:rvnFUJITSU:rnFJNB1EA:rvrCP378200-01:cvnFUJITSUSIEMENS:ct10:cvrT50__:
dmi.product.name: LIFEBOOK T5010
dmi.sys.vendor: FUJITSU SIEMENS
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       x86_64kernel:             2.6.31-17-generic

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug

-- 
External screens not handled correctly
https://bugs.launchpad.net/bugs/510036
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