Messages in this thread | | | Date | Wed, 24 Nov 2004 14:32:47 -0200 | From | Olavo B D'Antonio <> | Subject | Re: Audio problems on AMD64 with Via K8T800 chipset |
| |
I have the same problem...
My system is a AMD64 3200+, motherboard MSI K8T-Neo with on-board sound VIA VT8237.
I'm running kernel 2.6.9.
Olavo D'Antonio
Eric Sharkey wrote: > I've posted about this problem earlier on the Alsa lists, but > Takashi Iwai has suggested I post here, since he thinks this is > a kernel issue. > > > There seems to be a problem with Alsa when running on the AMD64 > architecture on motherboards with the Via K8T800 chipset. The sound > is highly irregular, with lots of drop-outs, but also speed-ups, > slow-downs and weird volume changes. > > I've got this problem on an Asus K8V SE motherboard. Rod Smith > has the same problem on an MSI Neo-FSR. > (http://groups.google.com/groups?q=%22asus+k8v%22+alsa&hl=en&lr=&c2coff=1&selm=1et59c-90v.ln%40speaker.rodsbooks.com&rnum=4) > > In that post, Rod thought the problem was the Alsa driver for the > on-board sound (VIA VT8237), but this is not the case, as I've installed > a PCI Trident 4DWave NX, and it shows exactly the same behavior. > The problem appears not to be in the low level driver code. > > The degree of the problem is highly sensitive to the load on the > CPU at the time. Games like bumprace, which use multiple threads > and never sleep (giving load values around 8), sound awful. Most > games like tuxkart, which keep the load under 1, sound perfectly fine. > > And yet, some things sound bad even when the CPU isn't loaded. > timidity++ is a good example. > > This happens with both 64 and 32 bit kernels, and no amount of > twiddling with kernel parameters (ACPI/CPU frequency scaling, apic, > preemption, etc.) seems to make any difference. > > Can anyone here offer a suggestion? > > (Currently, I'm running 2.6 series kernels. I haven't yet tried > older versions.) > > Eric > > - > 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/ > >
- 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/
| |