Re: mplayer slowness and kernel
On Tue, May 19, 2009 at 18:35:05 +0200, Sjoerd Hiemstra wrote:
> Jan Willem Stumpel:
> > Florian Kulzer:
> > > It seems that your xorg video driver has problems to use
> > > hardware video acceleration with the newer kernel. (A problem
> > > with DMA for hard drive or DVD access is also possible, but
> > > less likely, IMHO.)
> > >
> > > What do you get from:
> > >
> > > lspci -nn | grep -Ei 'vga|display|video|media'
> >
> > 00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller [8086:24d5] (rev 02)
> > 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV280 [Radeon 9200 SE] [1002:5964] (rev 01)
> > 01:00.1 Display controller [0380]: ATI Technologies Inc RV280 [Radeon 9200 SE] (Secondary) [1002:5d44] (rev 01)
>
> I just want to mention that playing videos with the 2.6.29 kernel gives
> the same problem here, not just with mplayer but with any video such as
> Youtube videos played with the mozilla totem plugin; it looks as if a
> buffer is almost constantly full.
> AND my video card also is an ATI Radeon, so that's one more pointer in
> the direction of the Radeon driver.
> Let me show my output from the command above:
>
> 00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller [8086:24c5](rev 02)
> 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon R300 NE [Radeon 9500 Pro] [1002:4e45]
> 01:00.1 Display controller [0380]: ATI Technologies Inc Radeon R300 [Radeon 9500 Pro] (Secondary) [1002:4e65]
I remember more people complaining about performance problems with
radeon cards and kernel 2.6.29; see also the warning that Jan Willem
posted from his Xorg log:
(WW) RADEON(0): Direct rendering disabled
AFAIK, kernel 2.6.30 is supposed to fix these issues. The Debian kernel
team has recently made 2.6.30-rc5 kernel images available in
/dists/trunk, so you could test this yourself without having to compile
your own kernel:
http://wiki.debian.org/DebianKernel
--
Regards, | http://users.icfo.es/Florian.Kulzer
Florian |
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