On Thu, Jun 18, 2009 at 1:51 AM, Gilad Arnold<[email protected]> wrote: > Thanks, Alex. > > On Wed, Jun 17, 2009 at 12:22:59PM +1000, Alex Deucher wrote: >> On Wed, Jun 17, 2009 at 3:28 AM, Gilad Arnold<[email protected]> wrote: >> > $ xrandr >> > Screen 0: minimum 320 x 200, current 1400 x 1050, maximum 1920 x 1200 >> > VGA-0 connected 1400x1050+0+0 (normal left inverted right x axis y axis) >> > 546mm x 352mm >> > 1920x1200 60.0 + 60.0 >> > 1600x1200 75.0 70.0 65.0 60.0 60.0 >> > 1680x1050 60.0 >> > 1600x1000 60.0 >> > 1400x1050 74.8 60.0* >> > 1280x1024 85.0 75.0 60.0 >> > 1280x960 85.0 60.0 60.0 >> > 1152x864 75.0 >> > 1024x768 85.0 75.1 75.0 70.1 60.0 >> > 832x624 74.6 >> > 800x600 85.1 72.2 75.0 60.3 56.2 >> > 640x480 85.0 75.0 72.8 75.0 60.0 59.9 >> > 720x400 85.0 70.1 >> > 640x400 85.1 >> > 640x350 85.1 >> > DVI-0 connected 1400x1050+0+0 (normal left inverted right x axis y axis) >> > 546mm x 352mm >> > 1920x1200 60.0 + >> > 1600x1200 60.0 60.0 >> > 1680x1050 60.0 >> > 1600x1000 60.0 >> > 1400x1050 74.8 60.0* >> > 1280x1024 85.0 75.0 60.0 >> > 1280x960 85.0 60.0 60.0 >> > 1152x864 75.0 >> > 1024x768 85.0 75.1 75.0 70.1 60.0 >> > 832x624 74.6 >> > 800x600 85.1 72.2 75.0 60.3 56.2 >> > 640x480 85.0 75.0 72.8 75.0 60.0 59.9 >> > 720x400 85.0 70.1 >> > 640x400 85.1 >> > 640x350 85.1 >> > LVDS connected 1400x1050+0+0 (normal left inverted right x axis y axis) >> > 0mm x 0mm >> > 1400x1050 50.0*+ >> > 1280x1024 59.9 60.0 >> > 1280x960 60.0 59.9 >> > 1280x854 59.9 >> > 1280x800 59.8 >> > 1280x720 59.9 >> > 1152x768 59.8 >> > 1024x768 60.0 59.9 >> > 800x600 60.3 59.9 56.2 >> > 640x480 59.9 59.4 >> > S-video disconnected (normal left inverted right x axis y axis) >> >> When the one crtc drives several monitors the mode timing must be the >> identical on both. I suspect the mode timings aren't quite the same >> across monitors for the modes you are trying to set. > > Looks like at least the mode I tested with explicitly, 1680x1050, has > the same timing rates (60.0). I believe (not tested right now, not in > front of the external monitor) that I can actually activate both VGA-0 > and DVI-0 at any mode (on the same rate) if I turn one off, set the > other to the desired mode, then set the first one to the same mode. > I can test if you like.
You'll have to look at the actual mode lines (xrandr --verbose) to see is they are really indentical. If the modes are indentical you should be able to drive both heads using the same crtc. You can use the --crtc option with xrandr to force which crtc you want to drive a particular output. > >> Alternatively, xrandr isn't being smart about how it sets the mode >> which results in the error. > > If this is the case, where should I report this? https://bugs.freedesktop.org Alex _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
