@LocutusOfBorg, why should I try your ppa? It doesn't provide any guest-side packages and there's even no xenial ones.
What have you change in your packages that may be related to this issue? ** Description changed: ## Symptoms ## * OpenGL processing offloading is not supported(3D hardware acceleration is enabled in VM settings and is available on Intel Grphics host) * VBoxClient warns about "Failed to connect to the ViratualBox kernel service, rc=VERR_ACCESS_DENIED"(refer attached screenshot) ## Workarounds ## - Install VirtualBox provided guest additions iso from the menu works, I uses the upstream version of VirtualBox + Install VirtualBox provided guest additions iso from the menu works + + ## Additional Information ## + I uses the VirtualBox from upstream on the host side, the version is 5.0.20 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: virtualbox-guest-x11 5.0.18-dfsg-2build1 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Wed May 11 12:08:31 2016 InstallationDate: Installed on 2016-01-07 (124 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) SourcePackage: virtualbox UpgradeStatus: Upgraded to xenial on 2016-04-07 (33 days ago) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1580482 Title: virtualbox-guest-x11 isn't working properly in Ubuntu 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1580482/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
