[Bug 9734] New: Unsupported sound chip: VIA VT1720/24 (VIA Envy24PT)

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Ubuntu (patch) | linux

           Summary: Unsupported sound chip: VIA VT1720/24 (VIA Envy24PT)
           Product: Ubuntu
           Version: unspecified
          Platform: All
        OS/Version: Linux
            Status: UNCONFIRMED
          Keywords: patch
          Severity: normal
          Priority: P2
         Component: linux
        AssignedTo: fabbione at ubuntu.com
        ReportedBy: elegantly at elegantly.de
         QAContact: kernel-bugs at lists.ubuntu.com


I have recently purchased the new Shuttle XPC SN25P barebone PC for AMD64 CPUs
(nForce4 chipset, Socket 939 ;
http://global.shuttle.com/Product/Barebone/SN25P.asp). The FN25 mainboard in the
SN25P is equipped with an onboard sound card of type VIA Envy24PT multi-channel
audio controller (VIA VT1720/24 ;
http://www.via.com.tw/en/products/audio/controllers/envy24pt/), which is not yet
supported in Ubuntu 5.04 "Hoary Hedgehog". The correct driver for the sound chip
seems to be "ice1724", but modprobing it results in the following error message:

------------------ snipp --------------
ice1724: Invalid EEPROM (size = 255)
ICE1724: probe of 0000:05:06.0 failed with error -5
------------------ snipp --------------

The problem seems to be that the PCI Product/Vendor ID and/or the Subvendor
PCI-ID is different from what was expected.

A number of Ubuntu users have found a way to fix the problem, which basically
requires you to slightly modify the kernel source to recognize the card by
changing the files /usr/src/linux/sound/pci/ice1712/vt1720_mobo.h and
/usr/src/linux/sound/pci/ice1712/vt1720_mobo.c.

More information can be found on the Ubuntu forums:
http://www.ubuntuforums.org/showthread.php?p=133272

The attached patch is taken from http://www.nakack.net/?p=20

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