[CALL FOR TESTERS] VESA High Resolution Console support from
DragonFly
Eric Kjeldergaard
kjelderg at gmail.com
Tue May 24 21:28:58 PDT 2005
2005/5/23, Xin LI <delphij at frontfree.net>:
> Hi, Jeremie,
>
> 在 2005-05-23一的 02:38 +0200,Jeremie Le Hen写道:
> [snip]
> > One question however : is it supposed to consume more CPU than classical
> > non-VESA text mode ?
>
> I think so, it should consume more CPU than classical text mode console
> since it draws characters, rather than giving the responsibility to the
> video card. A possible optimization would be to map the video card
> memory into the space.
Tested on my Thinkpad R40 : Radeon 7500. Is it supposed to consume a
LOT of cpu? Perhaps there's something funny with -O2 or similar
because some things are VERY slow. I have not, however, noticed any
major bugs, but screen redraws will take ~1 second if the screen is
not cleared and thus causes powerd to kick my processor up to full
speed often. Also, the screensaver (logo_saver) seems to take a while
to display. The screen goes black for 10 - 15 seconds before the
screen saver displays. Through all this, though, it's still so worth
it.
--
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