Monitor resolution

[Carl Lowenstein]

On 4/6/06, Barry Gershenfeld <mailist at san.rr.com> wrote:
>
> >I tried setting resolution of 1280 x 1024 for a Viewsonic flat screen
> >monitor in Fedora 3.  ...  However, the next time it started, the monitor
> >said resolution not supported.  ... The error message was wrong about the
> >capability of the monitor.  Any ideas on why I can run the monitor at 1280
> >x 1024 in Windows but not Linux?
>
> The resolution is not the only spec at play here.  The refresh rate is an
> important factor.  Faster frame rates are great for CRT's but aren't
> necessary for LCD's.  As the frame rate goes up, so does the line
> rate...and the pixel rate...the hardware used to capture and rescale the
> image on flat screens just won't handle the higher rates.   This has caught
> a lot of the graphics and O.S. guys off guard.  Later versions (Knoppix
> included) are behaving better.
>
> If you can choose the refresh rate, choose 60 Hz.  (I know a lot of install
> stuff is automatic now).  Also, if you can, choose more than one
> resolution.  That way you can get your screen back by switching to a lower
> res (in X, press Ctrl-Alt-+, the + being the one on the number pad).
>
> Ultimately, you may need to edit the /etc/X11/XConfig4 file.   Perhaps
> someone has already done this and has notes...better than me making
> something up.

If you have the option to choose monitor type while running
"system-config-display" set it to "generic lcd".

    carl
--
    carl lowenstein         marine physical lab     u.c. san diego
                                                 clowenst at ucsd.edu