Removed quiet boot options and add debug, I see lots of boot-up activity and screen then goes black after about a minute. No red flags or errors that I could see, it just goes dark at 66 seconds. There is some radeon messages ~57 seconds, but no errors that I could see. Used cell phone to record scrolling and captured last frame before darkness.
Don’t you still have the 59.40 kernel installed to boot from?
I only tried those bug instructions for one installation, though not exactly. Instead of to updates I copied over the original. After that one I’ve been installing the kernel from here instead of messing with the bad one. On my main installation I’m still running on 59.37.
I suppose ‘works likes like something from “Farscape”’ refers to the long string of alphanumerics in the version. That’s normal for devel kernels. Their version strings get reduced when they become release kernels. You have the option of installing .59.46 now from current mirrors and keeping or removing 5.3.18-150300.257.g6971cec, or just keeping 5.3.18-150300.257.g6971cec and waiting to install whatever version follows .59.46 in 4-10 weeks.
5.3.18-150300.259.g3367546-default is unstable: The graphics / monitor completely cuts out randomly in the middle of a session as if going into monitor power save mode. When this happens, the system does not respond to the reset button. I must power off.
However, 5.3.18-150300.257.g6971cec-default is stable at this point. I should have stayed with this kernal because the previous stable kernal is now unavailable.
Auto-updates is always giving me this error message: “There is no update candidate for kernel-default-extra-5.3.18-150300.259.1.g3367546.x86_64” So I have been updating the kernel in Yast. Is there a safe way to get that troubled kernel out of the way, so auto-updates can proceed error free? Thanks in advance.