Graphic Problems, black/white bar on the screen

[question1212]

Hello, 

Customer have a new fleet of new HP Prodesk 400 G6 PCs (2 month´s old)  and uses two Non-HP-TFT-Displays with Displayportcable.

He reported, that his users have random big black/white/grey bars on the screen.

If you click "behind the bar"  the software works as expected...

 This "bar problem"  is  "random/sometimes/not easy to reproduce"

The "white/black bar" is away, after Power Off/On the TFT Displays.

The PC drives are up2date via HPIA https://ftp.hp.com/pub/caps-softpaq/cmit/HPIA.html

New Intel Grafikdrivers were installed from: https://downloadcenter.intel.com/de  as a try.

The used native Displayresolution isn´t 1920x1280 (1080p), not sure which resolution is in use.

The Checkbox in the intel-graphic-app in connection with scale/maximised windows were tried unsucessful.

Windows Creator´s Update 1909 was also tried.

HP Support Case is in the Status of "install latest drives, re-install-graphic driver"

Do you have any new Information about this problem?

Looks like the problem is only, if the Windows is maximised / in fullscreen

It happens often in connection with chrome and adobe

https://www.trustedreviews.com/news/remove-black-bar-google-chrome-3525801
https://www.ghacks.net/2018/08/07/do-this-if-chrome-shows-a-black-bar-at-the-bottom/
https://support.google.com/chrome/thread/13226151?hl=en
https://support.google.com/chrome/forum/AAAAP1KN0B0kztvALbicwE/?hl=en&gpf=%23!topic%2Fchrome%2FkztvA...
https://support.google.com/chrome/thread/2085662?hl=en
https://appuals.com/fix-monitor-not-displaying-fullscreen-on-windows-10/

[DGroves]

I suspect this is actually a monitor issue not a computer/video issue LCD displays are made to a specific resolution, and when you resize it the monitors onboard display scaler board/firmware attempt to use several methods of displaying this non default resolution and 1920x1280 is usually a laptop screen resolution and not a discrete monitors resolution

to check if this is the case set the display to the panels native resolution (i,m guessing it's possibly 1920x1080) and you should 

not have any bars, but the screen should have to be moved up/down to see the hidden part

the solution is to try/use a different brand of monitor that is more forgiving in displaying non native video resolutions