Hi, At work, I wish to attach a 27" Apple Display using thunderbolt to my Mac Book Air 4,2 13". Using OS X, it works fine, but as I prefer using Linux, I tested out Ubuntu's stock kernel and (among other) 3.5.0-rc3+ as of f40759e. Hotplug doesn't work (known issue), but also with coldplug the display reacts _very_ slow, way too slow for real use: The screen updates only every half second or so. Is this a known bug? Might something go afoul with kworker -- they need about 75% of the CPU with the large display attached, and less than 1% _without_ the large display. Any hints are most welcome, also on where I may dig further to determine the root causes... Thanks & best, Dominik _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
