apport information ** Tags added: apport-collected
** Description changed: After upgrading to 13.04 beta, my external monitor is no longer detected/driven. This works perfectly under 12.10, and is therefore a major regression impacting common use cases. When the Display Port/VGA adapter is plugged in dmesg reports 15 instances of: [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up Hardware: MacBook Air 2012 Display configuration: Apple Display Port to VGA adaptor Ubuntu version: 13.04 beta. + --- + ApportVersion: 2.9.2-0ubuntu5 + Architecture: amd64 + DistroRelease: Ubuntu 13.04 + EcryptfsInUse: Yes + InstallationDate: Installed on 2012-07-24 (258 days ago) + InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) + MarkForUpload: True + Package: linux (not installed) + Tags: raring + Uname: Linux 3.9.0-030900rc6-generic x86_64 + UnreportableReason: The running kernel is not an Ubuntu kernel + UpgradeStatus: Upgraded to raring on 2013-04-07 (2 days ago) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo ** Attachment added: "ProcEnviron.txt" https://bugs.launchpad.net/bugs/1165965/+attachment/3633694/+files/ProcEnviron.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1165965 Title: External display stopped working on MacBook Air To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1165965/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
