I run a script when I log in that adds the resolution, then select it via the display manager. There's an equivalent to add the 1680x1050 resolution for the other display, though that one seems to stick around at least until the next kernel update once its added.
#!/bin/bash xrandr --newmode "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync xrandr --addmode VBOX0 "1920x1080_60.00" ** Changed in: gnome-control-center (Ubuntu) Status: Incomplete => Triaged ** Changed in: gnome-control-center (Ubuntu) Status: Triaged => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/953687 Title: gnome-control-center display doesn't detect VirtualBox display resolutions Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: The displays panel of g-c-c fails to properly detect the display resolutions of VirtualBox virtual displays. I can manually add a mode for the proper resolution, refresh, etc. and select that, but the display panel offers a set of what appear to be completely resolutions. It seems to know there's more than 1024x768 there, but is having trouble getting a handle on what. I'm sure there's all kinds of fascinating debug output that would make this easier to diagnose, let me know what you need. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-control-center 1:3.3.91-0ubuntu3 ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9 Uname: Linux 3.2.0-18-generic x86_64 ApportVersion: 1.94.1-0ubuntu2 Architecture: amd64 Date: Mon Mar 12 23:50:13 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) ProcEnviron: TERM=xterm LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-control-center UpgradeStatus: Upgraded to precise on 2012-03-12 (0 days ago) usr_lib_gnome-control-center: activity-log-manager-control-center 0.9.3-0ubuntu1 deja-dup 21.90-0ubuntu1 gnome-bluetooth 3.2.2-0ubuntu3 indicator-datetime 0.3.91-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/953687/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp