SyncMaster 205BW / Intel i810 timing issued

[Tobias Knieper]

On Sunday 17 June 2007, Alex Deucher wrote:
> 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

At least my Samsung SyncMaster 215TW is working just fine.