carl.lowenstein at gmail.com
Thu Apr 6 14:18:47 PDT 2006
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 lowenstein marine physical lab u.c. san diego
clowenst at ucsd.edu
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