After turning on the PC the screen flickers even when using an HDMI connector.
Laptop screen flickers when is turned on.
Resolution
If the flickering started after a change in configuration, software installation, update, etc., undo those changes and check if the issue occurs again. This will help isolate the root cause.
You can also try installing the latest driver using Windows safe mode.
Make sure that the operating system is up to date:
Click the Start button.
Search for Windows Update.
ClickCheck for Updates and run all pertinent updates.
In the case of a multi-monitor set up, check if the issue happens when only one display is in operation. For laptops, check if this happens to only the integrated panel.
If possible, try different monitors and display cables. Use straight connections with no video adapters/dongles in between.
If the issue is with the VGA cable, use a different video output, such as HDMI, VGA, or DisplayPort*, depending on the motherboard/laptop output options and monitor input options.
Check if the flickering issue happens inside the BIOS configuration screen (To access the BIOS, check with the motherboard/laptop manufacturer).
If the issue happens in the BIOS configuration screen, it could be a processor issue. Try using the processor on a different known working and compatible system (applies only on Intel® boxed processors). If the issue persists, contactIntel Customer Support.
If you have a laptop and the issue is shown on the BIOS, contact the manufacturer.
Under the General tab, modify the start-up type to Disabled.
PressOK.
If you do not have access to the Intel Graphics Command Center, you can change the refresh rate to a lower setting using Windows Advance Display Settings
Right-click the desktop screen and select display settings
Scroll down and press on Advance Display Settings
Choose a native built-in display monitor (If laptop)
Under Refresh rate, Change the refresh rate to a lower setting.
DisableDesktop Window Manager:
Access the Power User menu by right-clicking the Windows taskbar icon.