** Description changed: - Procedure: - 1. Boot up the laptop - 2. Login - 3. Plug in the external monitor - 4. Open "Monitor Preferences" - 5. Change laptop's resolution, from 1366x768 -> 640x480, change refresh rate. - 6. Press "Apply" + ---- + After I plug in a external monitor to my laptop, and change some display settings, the screen of the laptop displays abnormal. - Expect: - Monitor displays normally corresponding to new resolution and refresh rate. + A possible reason of this issue is about change resolution to a un-fit + resolution, such as from 1366x768 to 640x480. Or change refresh rate to + some strange number, such 59Hz. - Happened: - Abnormal garbage displays on the laptop screen, please refer to attached screenshot. - - Release version: - Ubuntu 12.10 - - Frequency: - Always + Since all behaviour is normal if without external monitor, thus this may be due to two monitors can't be sync together. I think such changes should be allow to sufficient user's preference. + ---- + ProblemType: Bug + DistroRelease: Ubuntu 12.10 + Package: xorg 1:7.7+1ubuntu5 + ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 + Uname: Linux 3.2.0-24-generic x86_64 + ApportVersion: 1:7.7+1ubuntu5 + Architecture: amd64 + CheckboxSubmission: 017452a27eca3c8b498abbfa5ef91db9 + CheckboxSystem: ecaaad6fa1e0799a0aa1126bf620f39e + Date: Mon July 8 11:09:43 2013 + InstallationMedia: Ubuntu 12.10.1 "Quantal Quetzal" - Release amd64 (20121017.1) + PackageArchitecture: all + ProcEnviron: + TERM=xterm + PATH=(custom, user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + SourcePackage: xorg + UpgradeStatus: Upgraded to precise on 2011-11-08 (178 days ago)
** Also affects: displayconfig-gtk (Ubuntu) Importance: Undecided Status: New ** Package changed: displayconfig-gtk (Ubuntu) => ubuntu-gnome -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1197437 Title: Laptop monitor display incorrectly after plug in an external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-gnome/+bug/1197437/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp