[ltp] Changing CRT frequency

[Alex Deucher]

On 2/26/06, Shem Multinymous <multinymous@gmail.com> wrote:
> On 2/26/06, Alex Deucher <alexdeucher@gmail.com> wrote:
> > On 2/26/06, Shem Multinymous <multinymous@gmail.com> wrote:
> > > > (e.g., 1024x768-1024x768-60 1024x768-1024x768-85, etc.) then use
> > > > xrandr or ctrl-alt-+/- to switch modes.  Make sure you define your
> > > > modelines.
> > >
> > > Thanks! Which version of X.org supports that? I don't see this syntax
> > > mentioned in the radeon(4x) manpage of either x.org 6.8.x or 7.0.x.
> > > Also, how does one come up with modelines nowadays?
> >
> > I don't recall if 6.8.x does, but I think so.  6.9/7.0 definitely does.
>
> Are you sure about this? I can't run X.org 7.0 at the moment, but I
> checked the manpage and this syntax is not mentioned there; and
> looking at the actual sourcecode of X.org 7.0 (function
> RADEONGenerateModeListFromMetaModes in radeon_mergedfb.c), I don't see
> how it can work - the parsing code always treats a dash as a separator
> between the two monitors, so it would choke on an appended "-60". I
> tried on X.org 6.8, and it indeed chokes as expected.
>

Sorry about that, I was speaking off the top of my head.  I just meant
to yse custom modelines in your metamodes.  Use modeline names without
the reserved characters  (they are just strings, you can call a mode
'crazymode' if you like) or if you want clone modes with different
resolutions, etc. use '+' instead of '-' in your metamodes.

Alex

>   Shem
>