Q4.Why it can’t work with DVI?
VGA is different with DVI Port. This cable is Not compatible with DVI Port.
Q5. Stop working after some time?
Re-plug and make sure all the connection are tight, and then reboot your devices.
Q6. Why is there no sound?
Since VGA is an analog signal and can only receive video signals but not audio signals, this cable cannot transmit audio signals.
Q7. Why my monitor keep flicking?
Check the connection between the cable's VGA port and the source device's VGA female socket. For a better connection, clean the contact ports on the cable and source device.
Q8. Why doesn't my DB9 adapter work?
The DB9 adapter only has 9 pins, while the VGA connector has 15 pins, so it cannot be adapted.