If you've installed Lilo, try to load in Non-fb mode..

It has worked with me...

:o)

-----Message d'origine-----
De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]De la
part de Oz
Envoy� : 06 October 2001 17:12
� : [EMAIL PROTECTED]
Objet : [Newbie]Problems with IBM TFT and Mandrake Linux


I have installed Mandrake 8.1 - the installation went without a
glitch. Unfortunately, the image on my TFT display jitters (wrong
V-synch?).

I have system with a Matrox G450 video card and an IBM T55A
analog TFT LCD display. How can I change the display refresh from 75
HZ to 70 Hz for display size 1024 x 768 (the most optimal for best image
quality
under Windows)?

The manual of my monitor indicates the following refresh rates for
the highest resolutions:

    Factory Set Display Modes
    � Recommended
    Addressability     Refresh Rate      Horizontal Frequency
    1024 � 768�         60 Hz                 48.4 kHz
    1024 � 768           70 Hz                56.5 kHz
    1024 � 768           75 Hz                60.0 kHz

I have tried by changing the parameter VertRefresh in the
/etc/X11/XF86Config as follows

                     VertRefresh 70

Restarted X but this does not change the refresh rate (checked with
xvidtune). Is there something else I should do to get 70 Hz and a
stable picture?

Thanks for your help.

Oz


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