[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
[Expired for nvidia-graphics-drivers-470 (Ubuntu) because there has been no activity for 60 days.] ** Changed in: nvidia-graphics-drivers-470 (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
Is this bug still present in Ubuntu 21.10? If you find slightly different issues there then we should open new bugs for them. ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: Confirmed => Won't Fix ** Changed in: nvidia-graphics-drivers-418 (Ubuntu) Status: Confirmed => Won't Fix ** Also affects: nvidia-graphics-drivers-470 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-470 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
Sounds like the root cause here is the same as bug 1716857. ** Changed in: gdm3 (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
** Also affects: nvidia-graphics-drivers-418 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-418 (Ubuntu) Status: New => Confirmed ** Tags added: disco nvidia-drm.modeset -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
This still occurs in 19.04 with nvidia-driver-418. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
The bug is still there on Ubuntu 18.04 with newer drivers and kernel: nvidia-driver-418 linux-image-4.18.0-16-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
I have the exact same bug. This one seems to be related: https://bugs.launchpad.net/nvidia-drivers-ubuntu/+bug/1800465 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
As a workaround one needs to run (after each reboot): sudo vulkaninfo and then all vulkan apps start to work properly until system is shut down. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
Can be the same issue as https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1800465 Only happening with GDM in ubuntu 18.04 with updated nvidia drivers and ubuntu 18.10 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
** Tags added: bionic nvidia -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
I can confirm this is still an issue. My setup is: Ubuntu 18.04 MSI GE60 Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz Intel HD 4600 + GeForce GTX 760M nvidia-driver-396 (396.54-0ubuntu0~gpu18.04.1 from grphics-drivers PPA) nvidia-prime for switching cards With nvidia-drm.modeset=1 until some vulkan app is run as root the vulkaninfo crashes like this: == VULKANINFO == Vulkan Instance Version: 1.1.82 ERROR: [Loader Message] Code 0 : /usr/lib/i386-linux-gnu/libvulkan_radeon.so: wrong ELF class: ELFCLASS32 ERROR: [Loader Message] Code 0 : /usr/lib/i386-linux-gnu/libvulkan_intel.so: wrong ELF class: ELFCLASS32 INTEL-MESA: warning: Haswell Vulkan support is incomplete INTEL-MESA: warning: ../../../src/intel/vulkan/anv_device.c:1150: FINISHME: Implement pop-free point clipping Instance Extensions: Instance Extensions count = 17 VK_EXT_acquire_xlib_display : extension revision 1 VK_EXT_debug_report : extension revision 9 VK_EXT_debug_utils : extension revision 1 VK_EXT_direct_mode_display : extension revision 1 VK_EXT_display_surface_counter : extension revision 1 VK_KHR_device_group_creation: extension revision 1 VK_KHR_display : extension revision 23 VK_KHR_external_fence_capabilities : extension revision 1 VK_KHR_external_memory_capabilities : extension revision 1 VK_KHR_external_semaphore_capabilities: extension revision 1 VK_KHR_get_display_properties2 : extension revision 1 VK_KHR_get_physical_device_properties2: extension revision 1 VK_KHR_get_surface_capabilities2: extension revision 1 VK_KHR_surface : extension revision 25 VK_KHR_wayland_surface : extension revision 6 VK_KHR_xcb_surface : extension revision 6 VK_KHR_xlib_surface : extension revision 6 Layers: count = 3 === VK_LAYER_LUNARG_standard_validation (LunarG Standard Validation Layer) Vulkan version 1.0.82, layer version 1 Layer Extensionscount = 0 Devices count = 2 GPU id : 0 (Intel(R) Haswell Mobile) Layer-Device Extensions count = 0 GPU id : 1 (GeForce GTX 760M) Layer-Device Extensions count = 0 VK_LAYER_VALVE_steam_overlay_32 (Steam Overlay Layer) Vulkan version 1.1.73, layer version 1 Layer Extensionscount = 0 Devices count = 2 GPU id : 0 (Intel(R) Haswell Mobile) Layer-Device Extensions count = 0 GPU id : 1 (GeForce GTX 760M) Layer-Device Extensions count = 0 VK_LAYER_VALVE_steam_overlay_64 (Steam Overlay Layer) Vulkan version 1.1.73, layer version 1 Layer Extensionscount = 0 Devices count = 2 GPU id : 0 (Intel(R) Haswell Mobile) Layer-Device Extensions count = 0 GPU id : 1 (GeForce GTX 760M) Layer-Device Extensions count = 0 Presentable Surfaces: = GPU id : 0 (Intel(R) Haswell Mobile) Surface type : VK_KHR_xcb_surface Formats:count = 2 B8G8R8A8_SRGB B8G8R8A8_UNORM Present Modes: count = 3 IMMEDIATE_KHR MAILBOX_KHR FIFO_KHR VkSurfaceCapabilitiesKHR: = minImageCount = 2 maxImageCount = 0 currentExtent: width = 256 height = 256 minImageExtent: width = 256 height = 256 maxImageExtent: width = 256 height = 256 maxImageArrayLayers = 1 supportedTransform: VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR currentTransform: VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR supportedCompositeAlpha: VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR supportedUsageFlags: VK_IMAGE_USAGE_TRANSFER_SRC_BIT VK_IMAGE_USAGE_TRANSFER_DST_BIT VK_IMAGE_USAGE_SAMPLED_BIT VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT VkSurfaceCapabilities2EXT: == supportedSurfaceCounters: None GPU id : 1 (GeForce GTX 760M) Surface type : VK_KHR_xcb_surface vulkaninfo: /build/vulkan-tools-WIuZIg/vulkan-tools-1.1.82.0+dfsg1/vulkaninfo/vulkaninfo.c:1253: AppDumpSurfaceFormats: Assertion `!err' failed. Aborted (core dumped) I have added some logs to vulkaninfo to check what is the value of vkGetPhysicalDeviceSurfaceFormatsKHR function that leads to abort and it is: -3 (VK_ERROR_INITIALIZATION_FAILED)
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: gdm3 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
OK. Sounds like there is a device (/dev/* file) that you're not getting correct access to. And you can only get around that limitation by running as root (which is not recommended, for security). In this case we may find it's an nvidia driver (or installation) bug. Although your original observation that it's a gdm problem might actually explain this too. I don't know if it's gdm, systemd or something else that handles the required privilege escalation to access /dev/GRAPHICS_THINGS so am reopening the gdm task in the hope that somebody else knows... ** Changed in: gdm3 (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
I have found out just now that if I run anything Vulkan as root (e.g. sudo vulkan-smoketest), IT WORKS! And if I then run it without sudo, IT STILL WORKS! At this point I have no idea what is going on, nor why this doesn't affect lightdm nor sddm. It seems the affected package is indeed nvidia-graphics-drivers-390. Since it is proprietary, I'll ask in the NVIDIA Devtalk forums. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
After some investigating, I have found that if I log out, switch to TTY then run startx, I get the same issue. However I noticed that if I run sudo startx, Vulkan works, and it still works after logging out and running startx as a normal user, until the computer is rebooted. Then I tried logging in as root from GDM and I got the same result. Something is probably not being initialized properly when logging in as a non-root user. I think the affected package is actually xinit, but I'm not sure. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
I know that VSync and PRIME Sync are not the same thing. With modeset disabled, VSync IS enabled but there is tearing regardless, and I can see that even just by dragging a window around the screen. glxgears reports: Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 37879 frames in 5.0 seconds = 7575.718 FPS 38056 frames in 5.0 seconds = 7611.121 FPS [...] There is absolutely no option in nvidia-settings to fix this. I have taken a few screenshots: https://imgur.com/a/EqRi1NT Note that there are a lot more options on a desktop computer with a PCI-E NVIDIA graphics card. This post by an NVIDIA explains why PRIME Synchronization is critical to get rid of tearing on Optimus laptops and why nvidia-drm modeset=1 is necessary: https://devtalk.nvidia.com/default/topic/957814/linux/prime-and-prime-synchronization/ I quote: "The NVIDIA driver’s PRIME Synchronization support relies on DRM-KMS, which is disabled by default due to its current incompatibility with SLI. To enable it, run ‘sudo rmmod nvidia-drm; sudo modprobe nvidia-drm modeset=1’. In other words, load the nvidia-drm module with the parameter modeset=1." Instead of reloading the module every time I need to use my laptop, I just added that parameter to GRUB, which works but breaks Vulkan if gdm3 is used. If I run: $ xrandr --output eDP-1-1 --set "PRIME Synchronization" 1 without modeset enabled, the screen goes blank for a couple of seconds and GNOME is reloaded, but I still get tearing and according to xrandr it's still disabled: $ xrandr --verbose Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384 eDP-1-1 connected primary 1920x1080+0+0 (0x47) normal (normal left inverted right x axis y axis) 344mm x 194mm [...] PRIME Synchronization: 0 supported: 0, 1 [...] Of course, I get no tearing if modeset is enabled. I don't need to edit my xorg.conf or anything. Anyway the summary of this bug is "Vulkan not working if nvidia- drm.modeset=1 is set and gdm3 is used (Optimus)", regardless of the tearing issues. If gdm3 is not affected then why does this ONLY happen with GDM? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
"VSync" and "PRIME Sync" are unrelated things. You need to ignore the fact that they sound similar. You should be able to achieve perfect VSync regardless of the "modeset" option. But it may be disabled by default (by Nvidia) as alluded to earlier. The "NV-GLX" error sounds expected... In a Wayland session you're using Xwayland which doesn't yet connect to the Nvidia driver properly. So avoid Wayland sessions in your case - they're not expected to work for this. So I think you need to: 1. Don't use nvidia-drm.modeset=1 2. Only use Xorg sessions. 3. Now if tearing is your only problem then look in nvidia-settings for options to fix that. You might also find some xorg.conf options that help here: http://us.download.nvidia.com/XFree86/Linux-x86_64/390.25/README/xconfigoptions.html gdm3 has nothing to do with any of this. It just launches X and the Nvidia driver dictates what features are supported or not. If you want the maximum features and performance from Nvidia then you usually need to be using a Xorg session and not "modeset". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
I have also added WaylandEnabled=false to /etc/gdm3/custom.conf and Vulkan still doesn't work. I also lost the option to log into Wayland from the login screen. @vanvugt Are you sure this isn't a bug in gdm3? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
nvidia-drm.modeset=1 is used for PRIME Sync. In a gist, it copies the framebuffer from the dGPU to the iGPU without tearing. Without this, VSync is not effective no matter what. I have switched back to gdm3. In Xorg, OpenGL works as expected, with the NVIDIA GPU (according to glxinfo), but Vulkan still doesn't work. In Wayland, OpenGL is rendered by the Intel GPU and when I try to run vulkan-smokeinfo I get: Xlib: extension "NV-GLX" missing on display ":0". terminate called after throwing an instance of 'std::runtime_error' what(): VkResult -3 returned I remember Ubuntu 17.10 wouldn't let me log in at all if nvidia-drm.modeset=1 was enabled, but lightdm worked without issues (and it still does). Also SSDM is not affected either. Somehow gdm3 doesn't like this option... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
There's probably no way GDM could cause this directly. But indirectly if you are logging into a Wayland session in one case and Xorg in the other, then that might be the main factor here. Please try logging into both Xorg and Wayland sessions to see if one works better. Also, for Nvidia there used to be settings to control tearing in the nvidia control panel. So you shouldn't need to "To get rid of tearing I added nvidia-drm.modeset=1"...? ** Changed in: gdm3 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1769857] Re: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
** Description changed: + 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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769857 Title: Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1769857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
