I want to restore sound to my toshiba portege M600.

Try these.

Toshiba Portege M600 laptop keyboard removal

New Toshiba Portege R835 R830 US Keyboard G83C000B23US GLOSSY BLACK

You need to goto the manufacturers website, find their support section and there should be a list of drivers for your specific machine. Installing these will resolve your problem. Toshiba drivers are linked on my website.


Hope this helps,
www.PuterCare.com

visit forums.computers.toshiba-europe.com/forums/thread.jspa?...

Make sure sound is enabled in the bios. If still a problem uninstall your sound drivers and get updated drivers for your model from Toshiba website.

Try checking the drivers on the Toshiba for the audio . Try updating them online and also try a bios update . Then check, Also in safe mode is the sound working ?? And if not try to check the sound in BIOS . Press random keys and check if sound comes . If it does not come hardware issue . if it comes software issue . If its a software issue try a restore or a recovery .

Download the chipset drivers for you motherboard, and then reinstall the audio drivers. This should fix the problem. If you don't know what motherboard you have, download everest. The program will most likely have a link to your motherboards manufacturer.

Try the audio driver on this page:http://www.laptops-drivers.com/toshiba-drivers/download-driver-for-toshiba-portege-m600-ppm61-windows-xp.htmlI searched all over and it was all I could find. Toshiba for some reason doesn't have it on their site.

Maybe the problem is in your BIOS, you might need to enable something. Or maybe the CMOS battery is was going bad, and now it's shot, so your system doesn't remember it's settings.

you can extend the display to the projector through desktop settings

Without rplacing the main part of the lcd, I'm afraid you're stuck.
Nice laptop. Toshiba service has always been reasonable in my experience.
Sorry I couldn't offer better advice.
Good luck