Running xrandr --output DP1 --mode 2560x1600 --above LVDS1 --set audio on
when it's previously working does immediately make the monitor black out, and using '--set audio off' does not bring it back, nor does soft power cycling the monitor or unplugging/replugging it. I can see some reports of people complaining about dp/audio problems under windows with the U3011, but it's hard to tell how much they indicate a real hardware/firmware problem vs windows driver problems or something else. http://en.community.dell.com/support- forums/laptop/f/3517/p/19370516/19844480.aspx > It seems that the Nvidia based implementation at least with Displayport "++" out will only support an audio signal being passed over displayport to an external monitor that is no high resolution than 1080HD, or 1920x1080. So I wonder if there is some way for Linux to know not to try this, preferably without needing special user configuration: * don't do audio above a certain resolution? * ... on specific hardware models? * don't do DP audio at all by default? -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/745112 Title: [arrandale] desktop is messed up with external monitors (x86_64) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/745112/+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
