Topics about VIA VT8235 and Realtek 8139 devices....

[Georgi Ivanov]

Aurelio Sánchez wrote:

>Hi all,
>
>Last two weeks I've upgraded an Athlon XP 2.0 desktop and an Intel
>Pentium III laptop, regarding of the vastly changes in kernel and X,
>from FC1 to FC2, without major tricks, but I've encountered two problems
>(very silly ones) that perhaps someone could find too, so I'd like to
>send the solutions at air (Maybe.....:-).
>
>First, the desktop. A unnamed brand with MSI motherboard and Athlon XP
>2.9 (1,66 GHz real clock). It has an integrated soundcard, correctly
>recognized as VIA VT8235 series, but, even after setting gain controls
>from ALSA up (they are always set to zero at first startup), the thing
>is unable to sound.
>
>Googling and searching in kernel Documentation about two days (very
>important to install kernel-source package, if not, I'd be losten).
>Finally I tested the options for via82xx sound module. In my box, it's
>vital to send a 'index=0 dxs_support=1' as module parameters (anaconda
>forgot that). After putting:
>
>options snd-via82xx index=0 dxs_support=1
>
>on /etc/modprobe.conf, and rearrange the duplicate lines between
>/etc/modprobe.conf.dist and /etc/modprobe.conf (first is linked from
>modprobe.conf with an 'include' sentence), my box sounds...and how it
>sounds! (the sound quality is the finest I can remember).
>
>The VT8235 sound chipset is capable to use DXS routing for sound, but in
>my box, only using that setting. If you set DXS to off, or to on forcing
>48 KHz, it cannot work well.
>
>On laptop (Fujitsu-Siemens Amilo M-6500 with Intel 810 motherboard and
>Intel Pentium III 700/900 MHz) the trick was so silly as
>dangerous...because it renders to an unwired box (no net, no
>Internet...:-). Seems that, at least for a network card Realtek 8139
>built on a PCMCIA card, anaconda or something else adds as module option
>for the correct one (8139too) the option 'irq=10'.
>
>On startup, kernel and modprobe complains about this module option,
>stopping the start of this device, and if you see the kernel
>documentation (2.6.6 from kernel.org or from Fedora Core 2) you may find
>an INDEX file mention the 8139too.txt documentation for this module, but
>there  is no 8139too.txt file there!
>
>Logically, I tested to comment out the options for the module 8139too in
>modprobe.conf.....and the network card is working without problem.
>
>I promised to report these two issues as anaconda bugs (and perhaps
>kernel documentation trick for the second), if they merely are, one of
>these days....meantime, perhaps the above notes may help someone.
>
>  
>
I have problem with the sound . The module (snd-via82xx) is loaded , 
mixer is ok but i have no sound.
In fact there is sound but it's some noise.
I tried with the tips in you message but there is no effect.
I had no problems in Fedora Core 1 and kernel 2.6.x.