SyncMaster 205BW / Intel i810 timing issued

[Alex Deucher]

On 6/16/07, Andy Armstrong <andy at hexten.net> wrote:
> On 15 Jun 2007, at 03:04, Andy Armstrong wrote:
> > In the DCC gathered modelines I see two 1680x1050 modes - one with
> > +H/-V and one with -H/+V. I bet it's using the +H/-V one. I think
> > if it switched to +VSync everything would be fine.
> >
> > Is there a way to force it to use the -H/+V modeline or should I
> > just grit my teeth and install the latest release?
>
> I gritted my teeth :)
>
> I grabbed the source for xorg-server-1.3.0 from Gutsy (the next
> Ubuntu release) and the latest Intel driver from the git repo at
> intellinuxgraphics.org. You need at least xorg-server-1.3.0 to build
> the Intel driver.
>
> That all built and installed cleanly. I rebooted and everything
> worked - albeit with the same sync polarity issue I had with the
> stock Feisty drivers.
>
> So I did a really ugly thing: everywhere in the Intel drivers that
> the sync polarity is set I forced it to be +H/+V. Built, installed,
> rebooted and - magic! - I get a nice crisp display. It works.
>
> If it'd be helpful I'll take a little time to understand the proper
> way to fix it and submit a patch?
>
> Thanks for pointing me in the right direction.

sounds like your monitor edid needs a quirk entry (perhaps all
samsungs do).  See this thread:
http://lists.freedesktop.org/archives/xorg/2007-June/025218.html

Alex