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Date:      Wed, 25 May 2005 13:36:15 +0800
From:      Xin LI <delphij@delphij.net>
To:        Eric Kjeldergaard <kjelderg@gmail.com>
Cc:        Jeremie Le Hen <jeremie@le-hen.org>, freebsd-current@freebsd.org, delphij@freebsd.org
Subject:   Re: [CALL FOR TESTERS] VESA High Resolution Console support from DragonFly
Message-ID:  <1116999375.731.7.camel@spirit>
In-Reply-To: <d9175cad05052421282f757528@mail.gmail.com>
References:  <20050522112612.GA37841@frontfree.net> <20050523003843.GO850@obiwan.tataz.chchile.org> <1116815005.838.3.camel@spirit> <d9175cad05052421282f757528@mail.gmail.com>

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Hi, Eric,

=E5=9C=A8 2005-05-25=E4=B8=89=E7=9A=84 13:28 +0900=EF=BC=8CEric Kjeldergaar=
d=E5=86=99=E9=81=93=EF=BC=9A
> 2005/5/23, Xin LI <delphij@frontfree.net>:
> > Hi, Jeremie,
> >=20
> > =1B$B:_=1B(B 2005-05-23=1B$B0lE*=1B(B 02:38 +0200=1B$B!$=1B(BJeremie Le=
 Hen=1B$B<LF;!'=1B(B
> > [snip]
> > > One question however : is it supposed to consume more CPU than classi=
cal
> > > non-VESA text mode ?
> >=20
> > 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.
>=20
> 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.

Yes, it requires more CPU cycles if you use raster mode.  Does it also
slow down your console if you are running under text mode?  I hope
not :-)

Cheers,
--=20
Xin LI <delphij delphij net>  http://www.delphij.net/

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