Upgraded to latest Virtualbox version (which says it supports 5.8 kernel series). Installed latest available extension pack for VirtualBox.
Then booted the latest kernel avaialble : 5.8.0-34-generic #37 Display is now stuck to 800x600 Latest available DKMS is not compatible with kernel 5.8 : Done. Loading new virtualbox-guest-6.1.10 DKMS files... Building for 5.8.0-34-generic Building initial module for 5.8.0-34-generic ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/virtualbox-guest-dkms.0.crash' Error! Bad return status for module build on kernel: 5.8.0-34-generic (x86_64) Consult /var/lib/dkms/virtualbox-guest/6.1.10/build/make.log for more information. dpkg: error processing package virtualbox-guest-dkms (--configure): installed virtualbox-guest-dkms package post-installation script subprocess returned error exit status 10 Errors were encountered while processing: virtualbox-guest-dkms E: Sub-process /usr/bin/dpkg returned an error code (1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1910503 Title: latest kernel breaks display full sizing in virtualbox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1910503/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs