AMD kernel developer wants to classify this is as both SDDM bug and plymouth bug https://gitlab.freedesktop.org/drm/amd/-/issues/3341. amdgpu kernel driver is not ready by the time that sddm and plymouth are started in some cases (race condition). Marking this as a sddm and plymouth bug (in addition to linux) because of this.
To me it seems that at least a systemd service should be handling blocking starting GUI userspace services until the kernel drivers are actually loaded but that is just my thought. I guess the AMD developer sees this the same way you do Daniel. ** Also affects: sddm (Ubuntu) Importance: Undecided Status: New ** Also affects: plymouth (Ubuntu) Importance: Undecided Status: New ** No longer affects: plymouth (Ubuntu) ** Also affects: plymouth (Ubuntu) Importance: Undecided Status: New ** Bug watch added: gitlab.freedesktop.org/plymouth/plymouth/-/issues #253 https://gitlab.freedesktop.org/plymouth/plymouth/-/issues/253 ** Also affects: plymouth via https://gitlab.freedesktop.org/plymouth/plymouth/-/issues/253 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to sddm in Ubuntu. https://bugs.launchpad.net/bugs/2063143 Title: Frequent boot to black display To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/2063143/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs