Re: Radeon 3650HD laptop LVDS lid open/closed detection problem

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On Mon, Jul 12, 2010 at 10:48:08AM -0400, Alex Deucher wrote:
> On Mon, Jul 12, 2010 at 7:53 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> > On Mon, Jun 21, 2010 at 11:12:51AM -0400, Alex Deucher wrote:
> >> On Mon, Jun 21, 2010 at 10:53 AM, Francisco Jerez <currojerez@xxxxxxxxxx> wrote:
> >> > Jerome Glisse <glisse@xxxxxxxxxxxxxxx> writes:
> >> >
> >> >> On Mon, Jun 21, 2010 at 03:31:19PM +0300, Pasi Kärkkäinen wrote:
> >> >>> Hello,
> >> >>>
> >> >>> After fixing the dvi/hdmi detection problem I now have another problem
> >> >>> with the HP EliteBook 8530p, which has Radeon 3650HD adapter.
> >> >>>
> >> >>> Here's a summary of the environment:
> >> >>>
> >> >>>      - laptop connected to a docking station.
> >> >>>      - external display in use, connected with DVI to the dock.
> >> >>>      - laptop lid closed, so internal LVDS display is not used.
> >> >>>
> >> >>> Now, when I start the laptop, I can see the BIOS and grub on the external DVI display.
> >> >>> All fine so far. I select the Fedora 13 kernel, and Linux starts. I see the Fedora
> >> >>> graphical boot on the external DVI display, just like it should be. GDM login prompt
> >> >>> appears on the external DVI display, still everything fine.
> >> >>>
> >> >>> And then it goes wrong. After I login to X, the external display only shows the background
> >> >>> picture.. it turns out the desktop stuff has been started to the internal LVDS display,
> >> >>> which shouldn't be used at all since the laptop lid is closed!!
> >> >>>
> >> >>> When the laptop lid is closed, and external display is connected, I want to use only the external display..
> >> >>>
> >> >>> Any ideas how to troubleshoot this one?
> >>
> >> Does it work ok if you boot up without the external display connected
> >> and then connect and enable the secondary display after you've logged
> >> in?
> >>
> >
> > I just tried this.
> >
> > I boot up the laptop with lid open, so ONLY the internal LVDS is active
> > (DVI cable disconnected), and I get the GDM login prompt on the internal LVDS.
> >
> > Then I plug in the external DVI display, and the external display
> > gets automatically active when X starts. Gnome panel etc are on the internal LVDS,
> > external DVI display only has the background image and nothing else.
> >
> > So that works as expected. No problems there.
> >
> >>  I have a similar issue here;  I think it's an issue with rhgb and
> >> starting X.  If I boot with an external display, the entire plymouth
> >> load sequence works fine, but then when X starts the external display
> >> goes blank and the internal display hangs on the plymouth screen.  On
> >> a related note, if I close the lid and turn off the LVDS output, gpm
> >> never blanks the external monitor.  I have to manually force dpms with
> >> xset.
> >>
> >
> > The other patch (0001-drm-radeon-kms-fix-shared-ddc-handling.patch) applied
> > my system mostly works now, but here's a summary about the problem I still have
> > with the lid detection:
> >
> > - I boot up the laptop with lid closed (LVDS inactive) so there's only external
> > DVI display connected. Kernel boot messages show up on the external DVI display,
> > and GDM login prompt appears on the external DVI display. All fine so far.
> >
> > - The actual problem: when X starts gnome panel etc show up on the internal LVDS
> > display, which I can't see at all since the lid is closed! So those should go to the
> > external DVI display only.. LVDS should be disconnected or inactive or something..
> >
> > Any pointers appreciated where to look at in the source.. I can do some debugging.
> 
> Your desktop session manager should check the lid status when it loads
> and attempt to do the right thing if there is an external monitor
> detected.
> 

Ok.
So you think it's not a bug in the lid detection? 

-- Pasi

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