on kernel 4.15 serires I have some times sucessfully login to dump the kernel error message by ssh when the system was frozen . the attachment was the dmesg error message dump several weeks ago.
** Attachment added: "dmesg.error.tgz" https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1858199/+attachment/5317403/+files/dmesg.error.tgz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1858199 Title: bugs in libvdpau_radeonsi.so and amdgpu(or radeon) driver freeze the system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1858199/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs