02-15-2009 01:57 PM
various other people have posted this error (search function used), but noone has gotten an answer. Whenever i try to upgrade my sound driver to 18.104.22.168 / 22.214.171.124,be it manually or via system update the sound driver gets messed up. To sound icon in the taskbar gets a red X, the sound card in device manager gets a "!", and says "Windows could not load driver".
In other threads people suggested the driver is not signed so Vista64 refuses to load it, however under Driver details it says its signed by Microsoft...
I would appreciate if someone could tell me how they got this driver to work on their 64bit machine, i'd like to enjoy the fixes and benefits of the new version.
Solved! Go to Solution.
02-28-2009 12:12 PM
02-28-2009 12:55 PM
I tried to apply the patch and rebooted the system but it did not solve the Audio problem for me.
I am using Vista x64 , SP-1.
Any help folks ...
Lenovo support wake up .....
03-02-2009 02:04 PM
I do not think the issue is related to that. The moment i rollback the drivers my sound works - completely, including system sounds. The error in device manager is clear: "Could not load driver".
This error can occur when 64bit drivers are not signed. Or something else is wrong, i have no idea what though. I hope someone from lenovo responds to this matter, there are various unresolved topics with the same issue when using search.
03-21-2009 10:23 PM
I would like to post my solution to the problem:
UNINSTALL the old driver first, check the box "remove drivers" and wait. Then run the setup of the 4.76 version and let it finish, it will take a while but ultimately install correctly!
03-25-2009 12:08 AM
That doesn't work for me... I uninstalled the Conexant software from add remove programs and then installed it and still ended up with no sound. I also tried uninstalling the Conexant driver with the "remove drivers" box checked and still got no sound.
This is clearly a driver signing issue. No doubt about it. When installing the software windows complains that the driver isn't signed and when you reboot you get error "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)". If you decide to press F8 before boot and select disable driver signing it magically works again.
The drivers must not be signed. There is a direct correlation between disabling driver signing and the sound card working.
I think I ran into this problem before and just downgraded to an older version of the driver. If you were to take the new CHDRT64.sys file and replace it with the older CHDRT64.sys version I'm pretty sure it should work.
Stupid driver signing... and why would they release a newer version of the driver and not "sign it.
03-25-2009 12:50 PM
03-27-2009 10:24 AM - edited 03-27-2009 10:25 AM
Hmm... I decided to uninstall the driver using device manager and then reinstalled the driver using device manager by pointing it to the V64 driver folder.
It works perfectly now... I'm not sure why the installation software was causing such a problem for me.
03-27-2009 11:36 AM