OK, it works - I swapped to 76Hz :)

For knowledge purpose I reply to this thread as I used it's PROM tips ;)
'ok words' told me I could set r1152x900x76 or r1024x800x85 or r1024x768x77 or a few others
so I did
	ok setenv output-device screen:r1152x900x76
	ok reset
I now have a nice 76Hz refresh - much better for my eyes.

Thanks a lot for all answers,
	Jo

On Fri, Jul 04 2003 - 02:04, der Mouse wrote:
> > I've just decided to try X on the SparcSTATION20 I got.
> 
> > cgsix0 at sbus0 slot 2 offset 0x0 level 9: SUNW,501-2325, 1152 x 900, rev 11 (console)
> > cgsix0: attached to /dev/fb
> 
> > according to the Sun's FB FAQ, there are some tools (ffbconfig, ...)
> > but I didn't saw them on the machine.
> 
> Sun's FAQ has an unfortuante tendency to assume you're running Solaris.
> 
> > Is it possible to get this card do... let says 1024x768x24bits ?
> 
> No.  The cgsix cannot do deeper than 8bpp.
> 
> > Or does it only know one resolution ?
> 
> Some cgsixes can do other resolutions than 1152x900; some can't.  Shut
> down the OS, back to the PROM, then
> 
> ok cd /sbus/cgsix
> ok words
> 
> If this produces no output, your cgsix is old, old enough that you can
> forget about changing its resolution.  If it includes words with names
> like "r1600x1280x76" or "r1024x768x77", it should be possible to change
> the resolution; I've never actually had any success trying to do so,
> though.  (In at least one case, I suspect this is because the monitor I
> was using was single-frequency.)
> 
> The third number (76 and 77 in my examples above) is the vertical scan
> frequency, not anything related to per-pixel depth.
> 
> You still won't get anything deeper than 8bpp, alas.  Not from a cgsix.
> 
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