Re: Tseng and Picasso videomodes

[Ignatios Souvatzis <is%jocelyn.rhein.de@localhost>]

So...

several people have reported that their Picasso or Spectrum does
not make their monitor sync properly in console mode. I looked
aroud and found reports from back to NetBSD-1.3. I'm aware of 4 people 
who had the problem; it might be a monitor not liking the edge of its
sync region, or the graphics board setting the sync frequency a bit low.

Michael Hitch tried a bit, and found that he had to slightly increase 
the pixel clock rate.

I want to ask all who have this problem to test this.


Picasso, Piccolo, Spectrum:

binpatch -s _clconsole_mode -o 82 netbsd        (should be 25200000)
binpatch -s _clconsole_mode -o 82 -r 253000000 netbsd

then boot that new kernel. If your monitor can use a wide area of sync
frequencies, you can try still higher values.

The values in the original kernels are for      31500 Hz/60.35 Hz (Picasso)
The values in the original kernels are for      31250 Hz/59.95 Hz (Tseng/CV)
The proposed pixelclock yields                  31625 Hz/60.58 Hz.



I have prepared kernels with the changed value at

ftp://ftp.netbsd.org/pub/NetBSD/arch/amiga/misc/netbsd-fasterconsole

Please report whether that works.
Regards,
        -is