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Re: mplayer slowness and kernel

On Mon, May 18, 2009 at 13:24:33 +0200, Jan Willem Stumpel wrote:
> With the 2.6.29 kernel (from the linux-image-2.6.29-2-686
> package), playing a movie with mplayer uses up to 95% cpu. mplayer
> becomes very slow and jerky, with "stuttering" sound, and "Your
> system is TOO SLOW" warnings. No twiddling of mplayer's parameters
> helps.
> When I go back to the slightly older 2.6.26 kernel
> (linux-image-2.6.26-2-686), mplayer works properly again (about
> 20% cpu usage and no warnings or "stuttering", even at full screen
> size.

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'

grep -Ei '^\((ee|ww)\)|xv|/drivers/' /var/log/Xorg.0.log

(The second one for both kernels separately, please.)

Regards,            | http://users.icfo.es/Florian.Kulzer
          Florian   |

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