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Postings here will focus mainly on Advanced Accounting software updates, tips, and related topics. They will also include general comments relating to troubleshooting PC/Windows/network problems and may also include reference to our other software products and projects including any of our various utilities, or to the TAS Premier programming language. We considered setting up separate blogs for different topics so that users/others could subscribe to topics mostly aligned with their interests, but decided that it would be better to keep things simple since some topics cross over into others. We would nonetheless welcome your feedback/input in this regard. Our web site URL is www.addsuminc.com. Call us at 800-648-6258 or 801-277-9240. We also maintain www.advancedaccounting.us so that older Business Tools users in particular have a greater chance to find us.

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Thursday, February 28, 2019

Screen ghosting and Chrome browser


Recently we started to notice a screen ghosting issue on a Windows 7 Pro 64-bit PC.  The PC has been in use for some time but the issue had started to worsen.  The "ghosting" issue as referred to here relates to an artifact of the prior screen or window remaining visible for some period of time after a screen has been moved or closed.  It might also be described as a "lag" or as a screen display/refresh issue.

Since a Google Chrome browser with the latest updates was normally always loaded and active running in the background on this PC, we didn't have a reason to suspect the browser as the cause, but when closing the browser, we noticed that  the screen ghosting problem stopped.  It also stops we realized when the browser is minimized.

Investigating further, it appeared to be possibly related to a setting in Chrome relating to hardware acceleration.  The specific setting is at (with the browser launched and having focus):

ALT-F (hold down ALT then press F and release - or in the upper right hand corner of the browser window, click on the round button with three dots)


Settings


Scroll down and clicked on Advanced

Scroll down to the System section

Slide the Use hardware acceleration when available option to the left to turn it off

Click on Relaunch



Default




Hardware acceleration off

At first it seemed like this resolved the issue on this particular desktop PC.


But no.   We noticed that the "ghosting"  still occurred when the browser window was in the background of another application's window.  Minimize the Chrome browser window behind, and the behavior disappears.

There have been suggestions made elsewhere about also clearing the Chrome cache, and running  ipconfig /flushdns and netsh winsock reset at the command (cmd) line and re-booting.  The Chrome cache is regularly cleared from this PC. Clearing the cache did not change the behavior.   So we then ran the ipconfig and netsh commands (but with low expectations) and re-booted. 

The problem remains and must relate to some other Chrome setting.  

 Knowing that the ghosting problem seems to fully disappear when Chrome is minimized helps help to manage this annoying behavior which we've been unable to duplicate using any other combination of running programs.
















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