** Also affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
OS: Ubuntu 18.04 bionic
Kernel: x86_64 Linux 4.15.0-20-generic
- DE: GNOME
+ 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.
- Other GNU/Linux distributions such as Manjaro don't seem to be affected
- which is why I'm reporting this here.
+ Everything works fine if lightdm is used instead of gdm3.
** Summary changed:
- Vulkan not working if nvidia-drm.modeset=1 is set (Optimus)
+ Vulkan not working if nvidia-drm.modeset=1 is set and gdm3 is used (Optimus)
** Description changed:
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 fine if lightdm is used instead of gdm3.
+ Everything works as expected if lightdm is used instead of gdm3.
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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)
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