I was wrong, you don't need to update. Basically just works once when you first install on a fresh system the nvidia proprietary drivers and reboot, in the first reboot it is already using NVIDIA instead of Intel, and when this happens, all Vulkan programs are running just fine. The problem comes when you switch to Intel and back to Nvidia once then.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1800465 Title: Vulkan error when using NVIDIA-Prime Status in NVIDIA Drivers Ubuntu: New Status in nvidia-prime package in Ubuntu: New Bug description: After installing Ubuntu 18.10 and the Nvidia driver + Vulkan-Utils, switching to NVIDIA and then running vulkaninfo or vulkan-cube works perfectly. But when you reboot and update, then switch to Intel, then back to Nvidia, all Vulkan programs give an "Assertion `!err' failed." Vulkaninfo: ======= Presentable Surfaces: ===================== GPU id : 0 (GeForce GTX 960M) Surface type : VK_KHR_xcb_surface vulkaninfo: /build/vulkan-tools-ZnxIl9/vulkan-tools-1.1.82.0+dfsg1/vulkaninfo/vulkaninfo.c:1253: AppDumpSurfaceFormats: Assertion `!err' failed. Annullato (core dump creato) Vulkancube: vulkan-cube: /build/vulkan-tools-ZnxIl9/vulkan-tools-1.1.82.0+dfsg1/cube/cube.c:3416: demo_init_vk_swapchain: Assertion `!err' failed. Annullato (core dump creato) I still have not found a workaround for that, the only way to get it working again is to reinstall everything. - Install Ubuntu 18.10 - Install proprietary 390 NVIDIA drivers - Switch NVIDIA-Prime to NVIDIA - Testing the vulkan capabilities works - Updating the system then switching to intel - Reboot - Switch to nvida - Now all Vulkan programs when using NVIDIA give that error To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia-drivers-ubuntu/+bug/1800465/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
