For the slow boots, try experimenting with kernel parameters like acpi_backlight=vendor and for more detailed info see https://wiki.ubuntu.com/Kernel/Debugging/Backlight
For the failed boots I would also recommend trying the kernel parameter: nvidia-drm.modeset=0 For both issues try the new experimental Nvidia driver version 550: https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2055153 Title: [Lenovo Legion Pro 7 16IRX8H] Boots slowly or not at all when NVIDIA driver is installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.5/+bug/2055153/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
