On Thu, Jun 03, 2010 at 11:33:03AM -0400, Alex Deucher wrote: > 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. >
Ok, thanks! -- Pasi
