On Thu, Jun 03, 2010 at 11:00:44AM -0400, Alex Deucher wrote: > >> >> > >> > > >> > I just tried with Ubuntu 10.04 (kernel 2.6.32) and it fails in a similar way than F13 (kernel 2.6.33) does. > >> > > >> > To summarize: > >> > - Booting the laptop in the dock, both the internal laptop display and the external DVI display connected, > >> > shows the beginning of the boot process on the internal display and then both displays go blank. > >> > > >> > - Booting the laptop in the dock, internal display in use and the external display powered *off*, > >> > shows the kernel boot process on the internal display but when GDM should show up the internal display goes blank. > >> > Nothing on the external display either (if I power it on). > >> > > >> > - Booting the laptop without the dock (and without the external display) works OK, I can see kernel boot process and GDM/X just OK. > >> > > >> > - Booting the laptop without the dock, and attaching it to the dock after X is running allows me to use (=enable) the external display once. > >> > But Gnome Monitor application shows the external display twice (as two devices).. > >> > > >> > >> Does it work if you boot with the laptop in the dock and then after it > >> boots attach the external monitor and enable it? Do things work any > >> better if you use xrandr rather than the gnome displays tool? > >> > > > > I just shutdown the laptop, connected it to the dock, > > disconnected the DVI cable from the dock, and then powered on the laptop. > > Now the boot process was OK using the laptop internal display.. gdm and X > > showed up on the internal display OK. > > > > When I was in X I connected the DVI cable to the dock, and went to gnome > > Monitors application. Same thing - the external display is shown as > > two separate devices. Although they don't work - no matter which one > > of the external displays I choose I don't get picture on the external DVI display. > > > > I also tried with xrandr: > > > > $ xrandr > > Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192 > > VGA-0 disconnected (normal left inverted right x axis y axis) > > LVDS connected 1680x1050+0+0 (normal left inverted right x axis y axis) 0mm x 0mm > > 1680x1050 60.0*+ > > 1400x1050 60.0 60.0 > > 1280x1024 59.9 60.0 > > 1440x900 59.9 > > 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 > > 848x480 59.7 > > 720x480 59.7 > > 640x480 59.9 59.4 > > DVI-0 connected (normal left inverted right x axis y axis) > > 1920x1080 59.9 + > > 1600x1200 60.0 > > 1680x1050 60.0 > > 1280x1024 60.0 > > 1440x900 59.9 > > 1280x960 60.0 > > 1280x800 59.8 > > 1024x768 60.0 > > 800x600 60.3 56.2 > > 640x480 60.0 > > HDMI-0 connected (normal left inverted right x axis y axis) > > 1920x1080 59.9 + > > 1600x1200 60.0 > > 1680x1050 60.0 > > 1280x1024 60.0 > > 1440x900 59.9 > > 1280x960 60.0 > > 1280x800 59.8 > > 1024x768 60.0 > > 800x600 60.3 56.2 > > 640x480 60.0 > > > > $ xrandr --output DVI-0 --right-of LVDS > > > > Didn't make a difference.. no picture on the external DVI display. > > > > I wonder if that HDMI-0 is the key to the problem.. I don't have anything connected > > to the HDMI connector on the laptop. There's no HDMI connector on the dock, it's only in the laptop. > > Indeed that is the problem. On your system the HDMI and DVI ports > share the same encoder and DDC line so they will both come up as > connected since the line is shared. The driver used to check the edid > when the lines where shared and select HDMI or DVI based on the EDID, > but perhaps that got broken at some point. > Makes sense. Does some kernel option/parameter affect that? -- Pasi _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
