Lat E7440 intermittent audio issues - any fix?
This happens with this E7440 randomly, but this is the ~4th or 5th occurrence of the issue: Laptop doesn’t hibernate right multiple times, audio stops working when I get forced into a reboot to a fresh desktop, I need to uninstall and reinstall the driver to fix it. Rinse and repeat as the audio drops dead again.
I have tried throwing the book at this laptop and nothing sticks - Reset the BIOS in the UI, pulled the CMOS battery and dumped the BIOS settings for the default checksum and tried to stop and restart the audio hardware in Device Manager - NOTHING fixes the issue short of uninstalling, rebooting, reinstalling the Dell driver and then it happens again.
Is there any way I can fix this, or at least quickly make sure it is (or isn’t) due to the motherboard? It’s seeming more like a motherboard level fault by the day, especially since it persists. It does pass system management testing (and audio tests) consistently when this happens, so I’m beginning to suspect a higher level intermittent fault.