My 2008 Macbook Pro is exhibiting the exact same issues.
- iSight camera shows up in the hardware list, but does not work with any software that utilizes it.
- Console (CrashReporter) maxes out my CPU to 100% writing error logs for VDCAssistant crashes every second
- System temperature is through the roof averaging 99 degrees Celsius, which causes a full system crash after 15 minutes even with fans on max and a cooling fan pad underneath
- All of the above does not occur on boot, but after a program that normally would access the iSight is launched, then the endless error reporting for VDCAssistant begins and cannot be stoppped
I've tried all the remedies offered up in the forum and just now finished a reinstall of OS X from the Recovery Partition. Unfortunately, that did not work either. Unless there's a fix from Apple soon, a full wipe and reinstall will be necessary. If there were a way to stop the Console from reporting so often, or at all for the VDCA stuff, then the machine would be usable until a patch (if ever) was created.
Remedies attempted:
- SMC-Reset
- PRAM-Reset
- DiskUtility Repair Disk Permissions
- Download 10.9.2 Combo and Reinstall
- Deleted VDCAssistant.plist under System/Library/LaunchDaemons/ folder
- Reinstalled Mavericks from Recovert Partition using Command+R on boot up (did not erase system)
Chrome was the biggest trigger for me, as the Hangouts extension kept setting off the VDCAssistant crash. Had to uninstall it to keep browsing.