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RE: 750C's WD 90C24 clocks



Dave,

I was wondering if you knew of a way to configure your XF86Config file so you
 can use either 1024x768 on an external monitor or 640x480 on the LCD. (I'm
just guessing the 750's had a 640x480 screen).  Currently I have a seperate
one for each resolution and haven't figured out how to get it all into one.

Thanks,
-Mike


On 24-Mar-97 Dave Ahn wrote:
>This information may be useful for TP750 users (as well as any other who
>have laptops with WD90C24).  Unlike as implied in the Video drivers diskette,
>1024x768 at 60Hz is not the maximum refresh rate possible on an external
>monitor.  The IBM Vesa drivers only let you select up to 60Hz, but the
>WD90C24 can be driven safely at 1024x768 at 70Hz using a 74MHz dot clock.
>Still a higher clock of 79MHz is supported, which should yield just below
>a 72Hz refresh rate.  Unfortunately, these higher clocks won't be of much
>use to non X users.
>
>Regards,
>Dave.
>-- 
>Dave Ahn,  ahn@vec.bgsm.edu             "When you were born you cried, and
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>           ahn@indigo2.rad.bgsm.edu      world rejoiced.  Try to live your
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