I have the same fail, since I updated Nvidia version (to 410), and then even returning to 396, Vulkan doesn't work, with vulkaninfo appears in terminal the same text as nastys.
But with "sudo vulkaninfo" Vulkan works. PD: I have Ubuntu 18.04 with Gnome, and Nvidia's drivers. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) Status in gdm3 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-390 package in Ubuntu: Confirmed Bug description: Lenovo ideapad 510-15IKB OS: Ubuntu 18.04 bionic Kernel: x86_64 Linux 4.15.0-20-generic DE: GNOME CPU: Intel Core i5-7200U @ 4x 3.1GHz GPU: Intel HD 620 + NVIDIA GeForce 940MX (Optimus) UEFI boot, Secure Boot disabled. I installed the proprietary graphics driver with Software Properties and Vulkan applications (e.g. vulkan-smoketest, Unreal Editor, SDK examples, Dolphin) were working fine. To get rid of tearing I added nvidia-drm.modeset=1 to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub, then ran update-grub && update-initramfs -u and rebooted. After doing that, Vulkan applications stopped working because they couldn't initialize the Vulkan swap chain until I reverted the changes to GRUB. Everything works as expected if lightdm is used instead of gdm3. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
