I have now access again to the machine in question. We installed the kernel from http://download.opensuse.org/repositories/Kernel:/openSUSE-15.1/standard/ on that machine. http://download.opensuse.org/repositories/Kernel:/openSUSE-15.1:/Update/standard/ does not exist? Will test the kernel this week and will report on the end of the week how it went. Btw. we have another T480s with a fresh 15.2 (no upgrade) which had now 3 freezes in 2 weeks.