Run as requested (with the MiniDP to VGA) adaptor connected. Interestingly I tried this with a colleagues generic el cheapo MiniDP to {VGA,HDMI,DVI} adaptor and successfully got my monitors native resolution.
So for me at least it appears that the limited resolution issue only occurs with an official Apple MiniDP to VGA adaptor. But said adaptor worked fine in Vivid! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1510021 Title: After upgrade from vivid to wily external monitor has only limited resolutions Status in xorg package in Ubuntu: Incomplete Bug description: In Vivid on connection of external display using displayport to VGA adaptor all resolutions upto max of my monitor were supported. Since upgrade to Wily while my internal display operates correctly the external display only shows resolutions up to 1024x768 as available, eg: xrandr Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767 eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 256mm x 144mm 1366x768 60.00*+ 1360x768 59.80 59.96 1280x720 60.00 1024x768 60.00 1024x576 60.00 960x540 60.00 800x600 60.32 56.25 864x486 60.00 640x480 59.94 720x405 60.00 680x384 60.00 640x360 60.00 DP1 connected (normal left inverted right x axis y axis) 1024x768 60.00 800x600 60.32 56.25 848x480 60.00 640x480 59.94 ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.19.1-0ubuntu3 Architecture: amd64 CurrentDesktop: MATE Date: Mon Oct 26 10:00:40 2015 InstallationDate: Installed on 2015-07-29 (88 days ago) InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1) SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to wily on 2015-10-22 (3 days ago) --- ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 BootLog: fsck from util-linux 2.26.2 /dev/mapper/sda4_crypt: clean, 381687/6053888 files, 5930344/24196096 blocks CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: MATE DistUpgraded: 2015-10-22 21:49:51,050 DEBUG enabling apt cron job DistroCodename: wily DistroRelease: Ubuntu 15.10 DistroVariant: ubuntu DkmsStatus: bcmwl, 6.30.223.248+bdcom, 3.19.0-31-generic, x86_64: installed bcmwl, 6.30.223.248+bdcom, 4.2.0-16-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Apple Inc. Device [106b:00fd] InstallationDate: Installed on 2015-07-29 (98 days ago) InstallationMedia: Ubuntu-MATE 15.04 "Vivid Vervet" - Release amd64 (20150422.1) MachineType: Apple Inc. MacBookAir5,1 NonfreeKernelModules: wl Package: xorg 1:7.7+7ubuntu4 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=9a4f85f8-6215-4430-8874-d6c52eeea39c ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Tags: wily ubuntu UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' Uname: Linux 4.2.0-16-generic x86_64 UpgradeStatus: Upgraded to wily on 2015-10-22 (12 days ago) UserGroups: adm cdrom dip libvirtd lpadmin mojo plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/08/2015 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBA51.88Z.00EF.B03.1506081623 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-66F35F19FE2A0D05 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookAir5,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-66F35F19FE2A0D05 dmi.modalias: dmi:bvnAppleInc.:bvrMBA51.88Z.00EF.B03.1506081623:bd06/08/2015:svnAppleInc.:pnMacBookAir5,1:pvr1.0:rvnAppleInc.:rnMac-66F35F19FE2A0D05:rvrMacBookAir5,1:cvnAppleInc.:ct10:cvrMac-66F35F19FE2A0D05: dmi.product.name: MacBookAir5,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Mon Oct 26 09:17:33 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 40976 vendor APP xserver.version: 2:1.17.2-1ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1510021/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp