[mythtv-users] Strange resolution problem

[Saul]

On Sat, 04 Jul 2015 11:31:00 +0100
Damian <myth at surr.co.uk> wrote:

> On 04/07/2015 08:29, Alec Leamas wrote:
> > On 04/07/15 08:57, Andréas Kühne wrote:
> >> What I would do is check the EDID properties of the projector, also
> >> perhaps change the settings in mythbuntu to not care about the EDID
> >> values. I don't know how to do that however.
> >
> > I did this long time ago for a monitor with a long cable, long
> > enough to make EDID fail. The solution was to add a modeline to
> > xorg.conf, in my case it looks like this (mind the email
> > linebreaks). It still works.
> >
> > Section "Monitor"
> >     Identifier     "Monitor0"
> >     VendorName     "IBM"
> >     ModelName      "ThinkVision L190"
> >     HorizSync       15.0 - 70.0
> >     VertRefresh     58.0 - 64.0
> >     ModeLine     "1280x1024_60.00" 108.9 1280 1360 1496 1712 1024
> > 1025 1028 1060 -hsync +vsync
> >     Option         "DPMS"
> > EndSection
> 
> Thanks Alec and Andréas. That certainly seems worth a try!
> 
> I don't seem to have a xorg.conf file, but I assume the OS will use
> one if it finds one.
> 
> So, now for the million dollar question ...
> 
> How do I know the right settings for a xorg.conf entry for my BenQ
> W1300 projector at 1920x1080? Those HorizSync, VertRefresh, ModeLine
> and Option settings look like things that you don't want to get
> wrong!!

There are modeline calculators, online and probably in Ubuntu Software
Center.

-- 
Cheers, Saul