Hi AS. Hi Greg, an installation specialist, 10 years awarded Windows MVP, and Volunteer Moderator, here to help you.
It's a known issue can be caused by laptops with Dual Graphics changing over to the other card. It doesn't have to be Nvidia:
https://support.zoom.us/hc/en-us/articles/20208...
https://devforum.zoom.us/t/occasionally-see-bla...
https://www.reddit.com/r/Zoom/comments/fwwm8p/b...
https://www.reddit.com/r/Zoom/comments/ggya5p/b...
The Display driver is so important here that merely updating it is sometimes not enough. So let's try everything possible to get it working correctly:
Update the Display driver from the PC or Display adapter maker's Support Downloads web page for your exact model number, HP Serial Number or Dell Service Tag - from the sticker on the PC.
While there check also for newer chipset, BIOS/UEFI firmware (very important), network, sound, USB3 and other drivers, comparing to the ones presently installed in Device Manager reached by right clicking the Start Menu.
If this doesn't give you the latest or ideal driver for what you need, compare it to the driver offered by the Intel driver update Utility here: http://www.intel.com/content/www/us/en/support/...
or the Nvidia Update utility here: http://www.nvidia.com/Download/Scan.aspx?lang=e...
or the AMD autodect utility here: http://support.amd.com/us/gpudownload/windows/P...
For Display issues one fix that is working is to Roll back or Uninstall the Driver on the Display Device > Driver tab, restart PC to reinstall driver.
You can also try older drivers in Device Manager > Display device > Driver tab > Update Driver > Browse > Let Me Pick.
Then you will know you've tried everything in addition to Windows Update drivers.
Adjust the screen resolution until it fits and looks best at Settings > System > Display.
I hope this helps. Based on the results you report back I may have other suggestions if necessary. If you will wait to choose whether the problem is resolved, then I will continue to help until the problem is fixed.
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