MobileRead Forums - View Single Post - Screen Blinking/Flicker Issue On Focus Loss

Aminy · 03-24-2025, 05:59 AM

Hi, when using the full screen viewer and alt tabbing to my second monitor the calibre program flickers black for less than half a second before going back to normal. This issue happens whether I click onto calibre or click out of calibre/alt tab into or out of calibre while in full screen. While not in full screen the program doesn't have this screen blinking issue.

Steps I've taken to solve this problem:

Look in settings to see if this is an optional setting.

Updating Calibre, I went from version 7 something to current version 8.0.1

Updating Nvidia drivers, from version 572.70 to latest.

Tried to reproduce the issue in other applications, but this problem seems to be only in calibre. Other programs do not cause this issue when alt tabbing.

More info:

I have an extremely old version of Calibre 3.16 that doesn't have this same problem.

I tried to screen capture this issue, but this blinking doesn't show up on the screen recording through OBS.

03-24-2025, 05:59 AM	#1
Aminy Junior Member Posts: 4 Karma: 10 Join Date: Mar 2025 Device: calibre	Screen Blinking/Flicker Issue On Focus Loss Hi, when using the full screen viewer and alt tabbing to my second monitor the calibre program flickers black for less than half a second before going back to normal. This issue happens whether I click onto calibre or click out of calibre/alt tab into or out of calibre while in full screen. While not in full screen the program doesn't have this screen blinking issue. Steps I've taken to solve this problem: Look in settings to see if this is an optional setting. Updating Calibre, I went from version 7 something to current version 8.0.1 Updating Nvidia drivers, from version 572.70 to latest. Tried to reproduce the issue in other applications, but this problem seems to be only in calibre. Other programs do not cause this issue when alt tabbing. More info: I have an extremely old version of Calibre 3.16 that doesn't have this same problem. I tried to screen capture this issue, but this blinking doesn't show up on the screen recording through OBS.