HP P22 G5 21.5" Monitor - Manual (Page 30)

3. Release the OSD button. The following test pattern menu displays.
4. To exit the Test Pattern menu, select Exit Diagnostic Mode, turn off the monitor, or connect the signal
cable.
Solving common issues
The following table lists possible issues, the possible cause of each issue, and the recommended solutions.
NOTE: Always ensure that the BIOS, device firmware, and monitor firmware are updated to the latest
version.
NOTE: When connecting a computer that supports Power Delivery over a USB Type-C, it is recommended to
set the Power mode to Performance to provide power support when the monitor is in the Sleep or Off mode.
Table 3-1 Common issues and solutions
Issues Possible cause Solution
Screen is blank or video is
blinking.
Power cord is disconnected. Connect the power cord.
Monitor is off. Press the monitor power button.
NOTE: If pressing the power button has no effect, press and
hold the power button for 10 sec to disable the Power Button
Lockout feature.
Master power switch is set to off. Set the master power switch on the rear of the monitor to the
On position.
Video cable is improperly connected. Connect the video cable properly. For more information, see
Connecting the cables on page 12 .
System is in Auto-Sleep Mode. Press any key on the keyboard or move the mouse to
inactivate the screen blanking utility.
Video card is incompatible. Open the OSD menu and select the Input menu. Set Auto-
Switch Input to Off and manually select the input.
or
Replace the video card or connect the video cable to one of
the computer’s on-board video sources.
Image appears blurred,
indistinct, or too dark.
Brightness setting is too low. Open the OSD menu, and select Brightness to adjust the
brightness scale as needed.
24 Chapter 3 Support and troubleshooting