Mac mini PPC X.org 1.3.0 (Ubuntu gutsy) and Evesham Alqemi S LCD TV

[Alex Deucher]

On Jan 22, 2008 8:19 PM, Stuart Langridge <sil at kryogenix.org> wrote:
> I'm trying to get my PPC Mac mini to properly talk to my LCD TV. The
> TV has both HDMI and VGA ports; the Mac mini has DVI out. I've tried
> using a DVI-HDMI lead (to the HDMI port) and a DVI-VGA adapter and VGA
> lead (to the VGA port) and not had a lot of success. I'm running X.org
> 1.3.0, and with the DVI-HDMI approach I can get 640x480 mode (but no
> better). Using DVI-VGA X won't even start. I've tried to collate all
> the information I can onto a web page to make it easy to browse: see
> http://kryogenix.org/random/alqemi-s/ for details. I have Xorg.0.log
> for each configuration, the output of lspci, and so on. If you need
> other information, or you'd prefer me to send this output directly to
> this list, I'm happy to do what's required! Evesham, the TV
> manufacturer, provided me with a list of "display modes", which I've
> also added to that page; possibly this would be helpful in
> constructing modelines? If someone can point me in a useful direction
> that'd be great.
>

The DVI port works fine, but your monitor has a funky EDID.  Also you
shouldn't need to specify the sync ranges for your monitor as the edid
provides those and they look relatively sane.  You can use xrandr once
the server is up to switch to the higher res mode:
xrandr --output DVI-0 --mode 1280x720

To make X start up in another modeline specify the modeline you want
to use in in your monitor section and add
Option "PreferredMode" "1280x720"
to the monitor section.

Alex