Re: Matrox Millenium accelerated framebuffer device

Martin Mares (mj@albireo.ucw.cz)
Thu, 23 Jul 1998 19:46:07 +0200


Hello,

> 1) usage is almost same as vesafb, you have to boot kernel with vga=ask
> and choose resolution, you cannot change resolution without reboot
> (I was inspired by Windows3.11 :-) )

It would be really nice if it could setup everything itself without relying
on the BIOS to work and use it as a second videocard.

> 9) more and more, if you find something wrong (or patches, changing
> videoresolution on the fly), mail to vandrove@vc.cvut.cz

If you want, just send the latest version to either me or Geert and it
will be included in the next console+fb patch we send to Linus.

> 2) Are fbcon_* functions called with lock_kernel() or under another
> mutex? It looks to me like that at least echoing characters from keyboard
> (putc) is not mutexed with screen scrolling (because of sometime
> under heavy scrolling (without acceleration) I'm getting spaces (skipped
> positions) instead of echoed characters).

I know of this problem, I'll look at it in next few days.

Have a nice fortnight

-- 
Martin `MJ' Mares   <mj@ucw.cz>   http://atrey.karlin.mff.cuni.cz/~mj/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
"What color is a chameleon on a mirror?"

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