BenQ PD Series User Manual page 62

Audio
No sound can be heard from the connected external speakers.
• Remove your headphone (if the headphone is connected to the monitor).
• Check whether the headphone jack is properly connected.
• If the external speakers are USB-powered, check whether the USB connection is OK.
• Increase the volume (volume may be muted or too low) on the external speakers.
KVM Switch
No response after switching to a KVM source.
Check the cable connections and menu settings in the following order.
• Make sure the cables are properly connected and the KVM Switch function is enabled. See
Establishing KVM connections on page 37
• The monitor remembers the KVM pairing setting before it was turned off and may not
recognize the new cable connections immediately if changed. You can check if the correct
input source has been selected for the KVM source from KVM Switch > USB 1 or USB 2,
depending on the KVM source you are switching to.
• Press the rotation key on Hotkey Puck Gen 2 (as the hot key for KVM Switch by default).
• If you don't have a hot key for KVM Switch and the computer of the KVM source you are
switching to is in Sleep mode, switch the input to the sleeping computer, and re-connect your
keyboard or mouse manually to the sleeping computer to wake it up. (Windows only) If it
does not work, try to press the power button to wake the computer up.
The input was switched to the other source. However, there is no image or cursor displayed.
If you go for Scenario A: Working with two computers and one monitor
Working in PBP mode on page
USB 2 (depending on the availability). If so, the screen does not display anything from the
second source as there is none. You cannot control the current display either as the keyboard
and mouse control has been switched away. In this case, select a video input manually from
Display > Signal Input.
USB-C™ connection (models with USB-C™ ports)
No video or audio output from the laptop with USB-C™ connection.
Check the cable connections and menu settings in the following order.
• Check if the USB-C™ cable has been connected to the monitor and the laptop properly. See
Connect the PC video cable. on page 19
• Check if the input source has been selected to USB-C on Display > Signal Input.
62 Troubleshooting
for more information.
40, check if None has been selected from KVM > USB 1 /
for more information.
or Scenario B: