Created attachment 274351 [details] dmesg The screen freezes completely and does not even respond to commands like Alt+Ctrl+F1. I can still ssh the device. Seems to happen more often when the system is cold :S. Similar (maybe same as #151341) Relevant dmesg: [ 246.751055] INFO: task amdgpu_cs:0:530 blocked for more than 120 seconds. [ 246.751067] Tainted: G O 4.15.0-qtec-standard #3 [ 246.751070] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.751074] amdgpu_cs:0 D 0 530 518 0x00080000 [ 246.751079] Call Trace: [ 246.751107] ? __schedule+0x25c/0x860 [ 246.751113] ? dma_fence_default_wait+0x10b/0x280 [ 246.751115] ? dma_fence_default_wait+0x1c7/0x280 [ 246.751118] schedule+0x2f/0x90 [ 246.751122] schedule_timeout+0x1e0/0x430 [ 246.751237] ? amdgpu_vm_update_directories+0x2d/0x5d0 [amdgpu] [ 246.751241] ? dma_fence_default_wait+0x10b/0x280 [ 246.751243] ? dma_fence_default_wait+0x1c7/0x280 [ 246.751246] dma_fence_default_wait+0x1f3/0x280 [ 246.751251] ? __kfifo_in+0x2e/0x40 [ 246.751254] ? dma_fence_default_wait+0x280/0x280 [ 246.751256] dma_fence_wait_timeout+0x2e/0x100 [ 246.751319] amdgpu_ctx_wait_prev_fence+0x49/0x80 [amdgpu] [ 246.751378] amdgpu_cs_ioctl+0x26e/0x1a90 [amdgpu] [ 246.751403] ? radix_tree_node_alloc.constprop.13+0x3d/0xc0 [ 246.751461] ? amdgpu_cs_find_mapping+0xc0/0xc0 [amdgpu] [ 246.751493] drm_ioctl_kernel+0x59/0xb0 [drm] [ 246.751514] drm_ioctl+0x29f/0x340 [drm] [ 246.751572] ? amdgpu_cs_find_mapping+0xc0/0xc0 [amdgpu] [ 246.751620] amdgpu_drm_ioctl+0x49/0x80 [amdgpu] [ 246.751626] do_vfs_ioctl+0x8e/0x680 [ 246.751632] ? SyS_futex+0x11d/0x150 [ 246.751635] SyS_ioctl+0x74/0x80 [ 246.751638] ? get_vtime_delta+0xe/0x40 [ 246.751642] do_syscall_64+0x6f/0x1c0 [ 246.751645] entry_SYSCALL64_slow_path+0x25/0x25 [ 246.751649] RIP: 0033:0x3c768e57e7 [ 246.751651] RSP: 002b:00007fd1220d0ba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 246.751655] RAX: ffffffffffffffda RBX: 00007fd1220d0c88 RCX: 0000003c768e57e7 [ 246.751656] RDX: 00007fd1220d0c10 RSI: 00000000c0186444 RDI: 000000000000000c [ 246.751658] RBP: 00007fd1220d0c10 R08: 00007fd1220d0cb0 R09: 00007fd1220d0c88 [ 246.751659] R10: 00007fd1220d0cb0 R11: 0000000000000246 R12: 00000000c0186444 [ 246.751661] R13: 000000000000000c R14: 0000000000000008 R15: 0000000000000000