On Thu, Jun 3, 2010 at 11:30 AM, Pasi K?rkk?inen <pasik at iki.fi> wrote: > 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?
No. I'll check the code and see if I can figure out what's going on. Alex
