On Sat, 16 Sep 2006 01:15:50 +0000, Benjamin Herrenschmidt wrote:
> On Fri, 2006-09-15 at 15:31 +0200, Michel Dänzer wrote:
>> On Fri, 2006-09-15 at 14:51 +0200, Yves-Alexis Perez wrote:
>> >
>> > I'm trying to use the dvi output (without vga adaptor) on my mac. It
>> > works well if (on the same screen) I use the vga adaptor, but when I use
>> > a dvi cable (working on osx), it suddenly doesn't work anymore. Well,
>> > Xorg detects it, and adjust the pseudo xinerama mode, but nothing is
>> > displayed on it (as if the macintosh detected the screen but the screen
>> > didn't detect the mac).
>> >
>> > Is anyone had made working the dvi output without vga adaptor ?
>>
>> The X.Org radeon driver doesn't support two digital displays at the same
>> time yet, see https://bugs.freedesktop.org/show_bug.cgi?id=3621 .
>
> There are ticks to make it work though. Jeremy Kerr collected some tips
> at
>
> http://ozlabs.org/~jk/docs/mergefb/
>
> The basic idea is to use a modified radeontool to whack the registers
> that X isn't configuring properly.
while we are at it, would it be possible to automagically detect 'hey it
is monitory XY attached so I am switching to the right resolution' like
osx does ?
rationale, I regularly switch between two configurations, single
laptop internal display + laptop with external display and am now getting
annoyed by always having to xrandr -s 0 / xrandr -s1 ...
Soeren
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