https://bugs.freedesktop.org/show_bug.cgi?id=111481 --- Comment #176 from L.S.S. --- Unfortunately this still happens with Nemo on 5.4-rc4 kernel (official), after switching to Manjaro Testing channel. The same ring sdma0 timeout error appears. An interesting phenomenon is that when the screen freezes (taskbar clock stopped changing), at first the mouse can still move, but after a few clicks the mouse stopped moving and the screen appears to have shifted to a previous frame before freezing completely: The contents of the previous folder would reappear in Nemo, and the taskbar clock may sometimes move a second backwards. I've removed AMD_DEBUG=nodma since it apparently doesn't work. If the patches are meant for 5.4-rc4, which patches are needed to address this problem? For now I'm using nnn (a terminal-based file manager) for browsing files since terminals don't freeze the system... I'm not sure what might be triggering the freeze as all the lockups I have so far all happened when using Nemo. Other programs (including Firefox and Chromium) haven't triggered the freeze yet. -- You are receiving this mail because: You are the assignee for the bug.