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 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs