Created attachment 485660 [details, diff] patch works fine in user patches Suggest an nvidia use flag for the virtualbox ebuilds applying the following patch which solves the screen flickering on guests such as Windows 10 with 3D enabled. Patch is listed here: https://www.virtualbox.org/attachment/ticket/13653/vbox-NVIDIA-fix-v2.patch.txt Good write-up is here: https://techblog.devlat.eu/2017/04/07/screen-flickering-in-virtualbox-with-3d-enabled/
The previously attached patch is for virtualbox-5.1.24.
Thanks for the patch. Windows 10 is pretty much unusable without this.
Please reopen if this still affects 5.2.x