Messages in this thread |  | | From | Nicholas Knight <> | | Subject | Re: via82cxxx_audio driver bug? | | Date | Mon, 13 Aug 2001 21:12:44 -0700 |
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On Monday 13 August 2001 10:46 am, Paul Jakma wrote: > On Mon, 13 Aug 2001, Nicholas Knight wrote: > > and if they've seen XMMS or other audio applications with access to > > /dev/mixer have strange, temporarily lockups when not in > > root/realtime priority. I've yet to be able to test this with other > > audio applications besides XMMS. > > yes.. i see this too with the via82cxxx_audio driver on my Tyan > AMD751+Via southbridge board. > > /anything/ that accesses /dev/mixer or /dev/dsp while sound is being
/dev/mixer is the sole problem on my end, as long as I block XMMS's access to /dev/mixer (wether via permissions or pointing it to a device that doesn't exist), it plays out /dev/dsp alone just fine, except for the lack of XMMS-side volume control.
> played is locked. Eg, play an mp3 with xmms. while playing, xmms and > things like the gnome and WM mixer applets are all unresponsive. they > respond to UI interaction maybe only every 30 seconds or longer.
The UI in other apps is a little iffy on my end, sometimes they lock, sometimes not.
> > xmms with real-time priority does not suffer from this > unresponsiveness. >
same here
> from the haze of my memory i think this behaviour started with the > mmap support that Jeff brought in 1.1.13 or 1.1.14. but i can't be > sure.
what version was in kernel 2.4.3? I first started reporting this when I installed Mandrake 8.0 and noticed it a couple months ago.
> > I've tried playing with the size of the buffers > (VIA_MAX_BUFFER_DMA_PAGES) and the _TIME and FRAG_ defines. best > result was that perioid of the unresponsiveness was reduced slightly, > but not eliminated (by reducing the buffering times and number of > fragments). > > > Thanks. > > regards, > > --paulj - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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