Hi Mark,
> I used to play around with 855resolution, trying to get 1280x720 for
> HDTV on my i865.
I took the time to look at the 855resolution code, and you're right,
it's not that complicated.
> IIRC there was a routine that enabled write mode in the BIOS, then
> another routine to make it read-only again
Yup, found it:
static void unlock_bios(void) {
outl(0x8000005a, 0xcf8);
outb(0x33, 0xcfe);
}
static void relock_bios(void) {
outl(0x8000005a, 0xcf8);
outb(0x11, 0xcfe);
}
> let me know if you have any trouble and I can probably generate a
> diff.
That would be really cool - because I have no idea where the magic
numbers come from, and which ones would be appropriate for the 915GM.
I looked at the outl/outb documentation, but obviously the values are
hardware specific. Can you, or anybody on the list, give me some
pointers?
Thanks!
- Michael
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