Just to be clear: forcing audio off every time the external display is configured, by using "xrandr ... --set audio off", does make it work reliably every time so far.
What I tested previously, and what did not work to turn it off just once and then use the system's normal configuration method (eg fn-f7), I guess because that is effectively configuring the monitor with auto audio. So it does seem that the problem is related to audio; in my particular situation being able to force it off all the time would at least hide the problem. I don't care about sending audio to my monitor, but I suppose others do, so a patch that just turns it off across the board probably wouldn't be accepted. I guess the next thing to work out is: * audio actually can't work on this channel with this resolution (not enough bandwidth?) * there's a bug in this monitor to do with audio at high resolution? * there's some other bug in the kernel about dp audio? * ...? -- 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
