Sorry it looks like I was completely wrong. qxl *does* support the preferred "modern" DRM/KMS graphics interface as shown in your log files. This seems to be some kind of qxl kernel bug or maybe Plymouth race condition.
I can only suggest collecting more Plymouth debug logs until the bug happens again.
Sorry it looks like I was completely wrong. qxl *does* support the preferred "modern" DRM/KMS graphics interface as shown in your log files. This seems to be some kind of qxl kernel bug or maybe Plymouth race condition.
I can only suggest collecting more Plymouth debug logs until the bug happens again.