[Bug 10418] Powerbook DVI out only works when booted with monitor attached

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=10418





------- Comment #35 from hvr at gnu.org  2007-10-04 08:58 PST -------
(In reply to comment #32)
> > right now I'm using the following intialization sequence, which does set the
> > enable bit only after everything else as been set:

> does it work properly?

yes... but only for the 'going-to-sleep-while-having-Xorg-on-other-VT' scenario
:-/

> I'm not familiar with "pbbcmd sleep" unfortunately.

it's just a CLI operation for putting the powerbook into sleep/standby mode
(i.e. suspend to ram)

> > ...seems as if Xorg is able to restore some setup/initialization it saved
> > before going to sleep?

> well, the driver saves all the regs it touches when it starts up and then
> restores those regs when you switch VTs or quit X.  We don't save/restore the
> ext TMDS regs yet (they get left as set by the driver), but I suppose we
> should.

...any theory what might cause DVI-output to be restored if going into suspend
with Xorg still running on another VT?


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