Re: 2.4.5, VIA KT133, sound corruption

Re: 2.4.5, VIA KT133, sound corruption

[Miroslav Ruda]

Charl P. Botha wrote:
> Have you had any answers from the mailing lists w.r.t. your problem?  This
> is a bit of a difficult one... the fix in quirks.c is _SUPPOSED_ to work on
> all 686b southbridges, but it seems on yours it's not applicable.  What
> motherboard do you have (make and model)?  If you have any more information
> (such as all boot up messages) that would also be welcome.

Fix in quirks.c (quirk_vialatency() function) didn't work on my ABIT KT7A 
motherboard (with 686b southbridge) with BIOS version WV.  
(see http://www.abit.com.tw/english/download/bios%20update/bios-kt7a.htm)
In that case fix should be commented off. 

After upgrade to the latest (ZT) version of BIOS, fix in quirks.c works. Well,
works, it makes no problem to the soundcard, I'm not sure whether is needed
as options can be set up in BIOS directly.

                 Mirek Ruda
 
> ps. Why did you pick home@cpbotha.net? :)

I was not able to find your address on http://lists.kernelnotes.de/linux-kernel
and home@cpbotha.net was one of two addresses I have found on your webpage.

2.4.5, VIA KT133, sound corruption

[Miroslav Ruda]

Hello,

 I have experienced similar problems to
http://lists.kernelnotes.de/linux-kernel/Week-of-Mon-20010430/002158.html

When I send _anything_ to /dev/dsp, I get continuous high-pitched beeping 
(nothing remotely resembling what the sound card should be doing).

I'm running 2.4.5 kernel with debian system, Abit KT7 (IA KT133 chipset) and
SB PC128 (es1371 driver). Similar to previous thread, removing VIA latency
patch - quirk_vialatency() in driver/pci/quirks.c works. The only problem is
that I probably have VT82C686B chipset (at least 
pci_read_config_byte(vt82c686, PCI_CLASS_REVISION, &rev) returns 0x40)
but patch makes problems on my board. Motherboard is just bought so it may 
be some newer version?

I have attached copy of /proc/pci.  If anyone requires more information, 
please sent me email. I am not subscribed to this list.
 
Best regards, 

                       Mirek Ruda

PCI devices found:
  Bus  0, device   0, function  0:
    Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 3).
      Prefetchable 32 bit memory at 0xd0000000 [0xd3ffffff].
  Bus  0, device   1, function  0:
    PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (rev 0).
      Master Capable.  No bursts.  Min Gnt=12.
  Bus  0, device   7, function  0:
    ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 64).
  Bus  0, device   7, function  1:
    IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 6).
      Master Capable.  Latency=32.  
      I/O at 0xd000 [0xd00f].
  Bus  0, device   7, function  2:
    USB Controller: VIA Technologies, Inc. UHCI USB (rev 22).
      IRQ 11.
      Master Capable.  Latency=32.  
      I/O at 0xd400 [0xd41f].
  Bus  0, device   7, function  3:
    USB Controller: VIA Technologies, Inc. UHCI USB (#2) (rev 22).
      IRQ 11.
      Master Capable.  Latency=32.  
      I/O at 0xd800 [0xd81f].
  Bus  0, device   7, function  4:
    Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 64).
      IRQ 9.
  Bus  0, device  11, function  0:
    Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev 5).
      IRQ 11.
      Master Capable.  Latency=32.  Min Gnt=8.Max Lat=56.
      Prefetchable 32 bit memory at 0xdb100000 [0xdb100fff].
      I/O at 0xdc00 [0xdc1f].
      Non-prefetchable 32 bit memory at 0xdb000000 [0xdb0fffff].
  Bus  0, device  13, function  0:
    Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 2).
      IRQ 12.
      Master Capable.  Latency=64.  Min Gnt=12.Max Lat=128.
      I/O at 0xe000 [0xe03f].
  Bus  1, device   0, function  0:
    VGA compatible controller: PCI device 1002:5446 (ATI Technologies Inc)
(rev 0).
      IRQ 10.
      Master Capable.  Latency=32.  Min Gnt=8.
      Prefetchable 32 bit memory at 0xd4000000 [0xd7ffffff].
      I/O at 0xc000 [0xc0ff].
      Non-prefetchable 32 bit memory at 0xd9000000 [0xd9003fff].