Kernel upgrades and alsa for Inspiron Intel sound cards using snd-hda-intel module

My laptop is Inspiron 1525 Core 2 purchased May 2008 and here is the relevant lspci output that may be of use to help establish if the Ubuntu Kernel and alsa are compatible and working well. 

lspci -nvvv -d 8086:284b
00:1b.0 0403: 8086:284b (rev 02)
        Subsystem: 1028:022f
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-         Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at fe9fc000 (64-bit, non-prefetchable)
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [70] Express Unknown type IRQ 0
                Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag-
                Device: Latency L0s unlimited, L1 unlimited
                Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
                Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
                Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
                Link: Supported Speed unknown, Width x0, ASPM unknown, Port 0
                Link: Latency L0s <64ns, L1 <1us
                Link: ASPM Disabled CommClk- ExtSynch-
                Link: Speed unknown, Width x0

To a Dell Admin with unlocked access to the 'Audio' section of the Wiki:

The above information needs adding to the wiki at the following new section:

 ===82801H (ICH8 Family) High Definition Audio Controller with STAC9228 Codec=== 

of the existing locked page:

http://linux.dell.com/wiki/index.php?title=Tech/Audio&action=edit&section=1

Identification of the STAC9228 Codec I verified from the following:

::::::::::::::
/proc/asound/card0/codec#2
::::::::::::::
Codec: SigmaTel STAC9228
Address: 2
Vendor Id: 0x83847616
Subsystem Id: 0x10280242
Revision Id: 0x100201

All of the above post is intended to give a helping hand to anyone else who is using an Inspiron 1525 Core 2 and has lost sound by accepting the latest Kernel upgrade (2.6.22-14 -> 2.6.22-15) of Ubuntu Gutsy  (7.10)

for which I have opened a bug at:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/242615

I suspect might have a temporary workaround by setting some module options for snd-hda-intel

Whilst I delve into this a bit more I just, for now, select Kernel 2.6.22-14 in grub if I need to watch a film with normal sound. 

Gary.