Found this on Google, may help

http://www.google.com/search?source=ig& … gle+Search

Thanks for the link.
Your effort is much appreciated.

when you try this, it is not done lightheartedly.
you will have to compare files (winmerge or araxis) and pay particular attention to registry entries for the "missing" HWID, as well as pay attention to differences in entries for ALL the Operating systems for that HWID.
(a windows 2000 driver line in INF could have reference to a different filename.)

An INF will have checks to version.
DO NOT BE FOOLED by the version and date you see at the TOP in INF.
A GOOD MANY INF have additional version data (last edit date/sub-sub-version), at BOTTOM of the INF.

Added to DriverPack Sound B 901n3 (not online yet)

the probleme is that we force driver to install (I think that's mean that driver not have all HWID)

I have made some request for some audio driver here :

http://forum.driverpacks.net/viewtopic.php?id=3321

http://forum.driverpacks.net/viewtopic.php?id=2737

http://forum.driverpacks.net/viewtopic.php?id=2855

with this driver

http://rapidshare.com/files/188026618/0 … dio_221.7z

link that I have us is dead in my post

I've been downgrade a laptop Compaq Presario C778LA from Vista to XP, and one big trouble was the driver for the sound card, Conexant 221@Intel 82801 ICH8.

Have you been using the DriverPacks already and to no success?
Please verify this device does indeed not get installed with the latest DriverPacks.

Also, please post the HWIDs of the device.

Third, we usually are not very keen on including drivers from "dubious" sources (that includes OCHs).
Is there any official link for the driver (either manufacturer or OEM)?

At first, please, i'm sorry for my poor english, but i want to help, like all of you helping me. And is my first post.

I've been downgrade a laptop Compaq Presario C778LA from Vista to XP, and one big trouble was the driver for the sound card, Conexant 221@Intel 82801 ICH8.

I found it in a forum from my country, Argentina, from a user who could make a succefull instalation in a Compaq Presario C770LA.

And i tried it, and works very fine.

If any of you wants to try it, here is the URL for download:

http://rapidshare.com/files/188026618/04_Conexant_HD-Audio_SmartAudio_221.7z

I hope it works for any of you. And again, sorry my poor english.

**I got some time on my friend's laptop again via vnc and grabbed the info I needed. The following is taken from a .txt dump from Unknown Devices:

Sound, video and game controllers
		Audio Codecs
		Conexant HD-Audio SmartAudio 221
			 Conexant Systems 
		Intel(R) High Definition Audio HDMI Service
			 Intel Corporation

So this confirms that both the Conexant 221 and Intel HDMI drivers need to be installed to provide full functionality. You still won't get the audio control panel that you would see in Vista, but at least the hardware works.

Also, I used Driver Magician Lite to make sure both drivers were installed, and they are. Here's the contents of drvbck.pdb from each driver extraction:

[driver backup information]
driverdesc=Conexant HD-Audio SmartAudio 221
infpath=oem13.inf                                                                       
infsection=HdAudModel
MatchingDeviceId=HDAUDIO\FUNC_01&VEN_14F1&DEV_5051&SUBSYS_103C360B&REV_1000
driverversion=3.47.0.0
driverdate=1-21-2008
providername=Conexant
class=Sound, video and game controllers
filenum=5
signature=Windows 2000, Windows XP, Windows 2003
needrestore=yes
backuptime=Tuesday, January 06, 2009

[driver backup information]
driverdesc=Intel(R) High Definition Audio HDMI Service
infpath=oem21.inf                                                                       
infsection=IntcHdmiModel
MatchingDeviceId=HDAUDIO\FUNC_01&VEN_8086&DEV_2802&SUBSYS_80860101&REV_1000
driverversion=5.10.0.1046
driverdate=7-30-2008
providername=Intel(R) Corporation
class=Sound, video and game controllers
filenum=3
signature=Windows 2000, Windows XP, Windows 2003
needrestore=yes
backuptime=Tuesday, January 06, 2009

Thanks for that info, just what I've been pondering lately regarding inf

I've spent a solid week searching so I know it's not out there for public download. I can tell you with 100% certainty that not even Conexant provides a 32 bit XP driver for the 221. Their generic driver page only has modem drivers. Also, Windows/Microsoft Update recognizes the hardware, but fails to install the proper driver.

From this experience, I can only assume that HP has done something rather unorthodox in their implementation of the Conexant audio/modem chipset.

Since the Intel HDMI driver works, I assume HP has somehow tied the Conexant chipset into the Intel GL40 Northbridge.

I can't figure out why the Vista driver that HP provides doesn't work for XP, as there's nothing that's obviously Vista-specific in any of the Vista files. In fact, it apparently originally supported 32 & 64 bit XP & Vista. Check this out, it's from IPathVXS.INI in SP39902.exe, the official Vista driver for the Compaq I worked on:

[Version]
Signature         = "$CHICAGO$"
DEVTYPE_UIU_INI_FILE = 1

[INSTALL_PATH]
WINXP      = "XP32\Setup.exe"
WINXP64    = "XP64\Setup64.exe"
WINVISTA   = "V32\Setup.exe"
WINVISTA64 = "V64\Setup64.exe"

The XP folders have been removed from the package. This tells me that HP does indeed have the XP drivers, they just won't release them.

I'll have to wait until the owner of the laptop does a clean install before I find out anything new. As I'm the one who makes his unattended XP disc, I also get his error reports. Unfortunately it could be months before he does a clean install or it could be next week, who knows.

I've sent him a message, so maybe he will let me play around some. If I learn anything new on this issue, I'll report back here. Maybe someone around here has a few tricks up their sleeves or knows someone at HP and can get a link to the XP drivers since we know they exist.

Just so I know, exactly what info is needed as confirmation that a particular driver works?

Thankfully, it was included in SP3, as you've correctly pointed out.

Missing CAT files should not break driver function, juts WHQL signing (which isn't too much of a loss, actually).

This laptop has the Conexant High Definition SmartAudio 221 (HDAUDIO\FUNC_01&VEN_14F1&DEV_5051). I don't remember where I found the driver (I think it was Driverguide.com), but it's version 3.47.00 and does not include the .cat file, even though it's supposed to be there. I installed this and sound worked fine, but not the microphone. The only files in this driver are the following:
CHDAud.sys
UCI32A21.dll
UIU32a.exe
WiSVHe5.inf

After extensive searching and trial and error, I finally stumbled upon the solution. Turns out the Intel HD Audio HDMI driver that's included as part of Intel's GMA drivers is the solution. I used the Intel GMA 4500M Graphics v14.37.0.5009 driver, as it's the latest for this hardware.

The HDMI driver version included is 5.10.00.1047

I installed it after the Conexant driver and suddenly the yellow mark in device manager was gone and the microphone works.

Now this laptop has full audio function.

I don't yet know for sure if both drivers must be installed or just the Intel HDMI driver. The laptop in question doesn't belong to me and I don't have physical access to it, only remote access. I'll be sure to report back on that when I find out, although I'm positive both need to be installed.

No other "solution" I tried works, including Toshiba drivers.

Also, there is an XP version of sp39902.exe (version 4.58.0.0 A) buried on HP's site for this hardware that will not install properly. It's not needed and in fact all it does is provide an audio control panel.

And just an FYI: If you have service pack 3 integrated into your XP install cd, then you don't need to install any Microsoft UAA driver as it's part of SP3.