https://bugs.freedesktop.org/show_bug.cgi?id=108361
--- Comment #1 from jian-hong@endlessm.com --- Created attachment 144004 --> https://bugs.freedesktop.org/attachment.cgi?id=144004&action=edit dmesg with Linux kernel 5.1.0-rc5
Tested with Linux kernel 5.1.0-rc5 on this model again. This issue still can be reproduced.
cat /sys/module/radeon/parameters/runpm -1
[ 36.906374] [drm] PCIE GART of 2048M enabled (table at 0x0000000000040000). [ 36.906474] radeon 0000:01:00.0: WB enabled [ 36.906475] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0x000000007764e5ef [ 36.906476] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000c04 and cpu addr 0x00000000acdd696b [ 36.906476] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000c08 and cpu addr 0x0000000094afed91 [ 36.906477] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000080000c0c and cpu addr 0x00000000b67dc661 [ 36.906477] radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000080000c10 and cpu addr 0x00000000a1f607b2 [ 37.438936] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD) [ 37.438947] [drm:si_resume [radeon]] *ERROR* si startup failed on resume [ 49.387494] [drm:atom_op_jump [radeon]] *ERROR* atombios stuck in loop for more than 5secs aborting [ 49.387514] [drm:atom_execute_table_locked [radeon]] *ERROR* atombios stuck executing 67C0 (len 254, WS 0, PS 4) @ 0x67CE [ 49.387521] [drm:atom_execute_table_locked [radeon]] *ERROR* atombios stuck executing 612C (len 78, WS 12, PS 8) @ 0x6165 [ 49.393021] [drm] PCIE gen 3 link speeds already enabled [ 49.736418] radeon 0000:01:00.0: Wait for MC idle timedout ! [ 49.907902] radeon 0000:01:00.0: Wait for MC idle timedout !