Aurelio Sánchez wrote:
I have problem with the sound . The module (snd-via82xx) is loaded , mixer is ok but i have no sound.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.
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.
