If I update to debian jessie/backports here is what I get: [ 23.665906] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07) [ 25.930036] gem 0002:20:0f.0 eth0: Link is up at 100 Mbps, full-duplex [ 25.930164] gem 0002:20:0f.0 eth0: Pause is disabled [ 67.501888] radeon 0000:00:10.0: ring 0 stalled for more than 10212msec [ 67.501904] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000164 on ring 0) [ 67.640696] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 67.776370] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 67.781185] radeon 0000:00:10.0: Saved 1019 dwords of commands on ring 0. [ 67.781206] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C139 [ 68.278804] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C139 [ 68.772351] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C139 [ 68.772379] radeon 0000:00:10.0: GPU reset succeed [ 68.772384] radeon 0000:00:10.0: GPU reset succeeded, trying to resume [ 68.772396] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C139 [ 69.269899] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C139 [ 69.763445] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C139 [ 69.763466] radeon 0000:00:10.0: GPU reset succeed [ 69.763520] radeon 0000:00:10.0: WB disabled [ 69.763529] radeon 0000:00:10.0: fence driver on ring 0 use gpu addr 0x0000000000000000 and cpu addr 0xe2905000 [ 69.898991] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 70.034453] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 70.034497] [drm] radeon: ring at 0x0000000000001000 [ 70.043419] [drm] ring test succeeded in 0 usecs [ 80.537888] radeon 0000:00:10.0: ring 0 stalled for more than 10496msec [ 80.537903] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000165 on ring 0) [ 80.538132] [drm:r100_ib_test [radeon]] *ERROR* radeon: fence wait failed (-35). [ 80.538206] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: failed testing IB on GFX ring (-35). [ 80.674747] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 80.810215] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 80.828174] radeon 0000:00:10.0: Saved 252827 dwords of commands on ring 0. [ 80.829341] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C135 [ 81.326863] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C135 [ 81.820409] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C135 [ 81.820436] radeon 0000:00:10.0: GPU reset succeed [ 81.820441] radeon 0000:00:10.0: GPU reset succeeded, trying to resume [ 81.820452] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C135 [ 82.317955] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C135 [ 82.811520] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C135 [ 82.811541] radeon 0000:00:10.0: GPU reset succeed [ 82.811594] radeon 0000:00:10.0: WB disabled [ 82.811604] radeon 0000:00:10.0: fence driver on ring 0 use gpu addr 0x0000000000000000 and cpu addr 0xe2905000 [ 82.947070] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 83.082533] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 83.082578] [drm] radeon: ring at 0x0000000000001000 [ 83.092664] [drm] ring test succeeded in 0 usecs [ 93.585889] radeon 0000:00:10.0: ring 0 stalled for more than 10496msec [ 93.585905] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000166 on ring 0) [ 93.586134] [drm:r100_ib_test [radeon]] *ERROR* radeon: fence wait failed (-35). [ 93.586209] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: failed testing IB on GFX ring (-35). [ 93.721752] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 93.857322] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 93.876189] radeon 0000:00:10.0: Saved 242491 dwords of commands on ring 0. [ 93.876218] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C131 [ 94.373729] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C131 [ 94.867282] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C131 [ 94.867308] radeon 0000:00:10.0: GPU reset succeed [ 94.867313] radeon 0000:00:10.0: GPU reset succeeded, trying to resume [ 94.867325] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C131 [ 95.364833] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C131 [ 95.858380] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C131 [ 95.858403] radeon 0000:00:10.0: GPU reset succeed [ 95.858458] radeon 0000:00:10.0: WB disabled [ 95.858468] radeon 0000:00:10.0: fence driver on ring 0 use gpu addr 0x0000000000000000 and cpu addr 0xe2905000 [ 95.993931] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 96.129396] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 96.129441] [drm] radeon: ring at 0x0000000000001000 [ 96.137828] [drm] ring test succeeded in 0 usecs [ 106.133887] radeon 0000:00:10.0: ring 0 stalled for more than 10000msec [ 106.133902] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000167 on ring 0) [ 106.134128] [drm:r100_ib_test [radeon]] *ERROR* radeon: fence wait failed (-35). [ 106.134202] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: failed testing IB on GFX ring (-35). [ 106.269751] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 106.405217] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 106.422974] radeon 0000:00:10.0: Saved 232155 dwords of commands on ring 0. [ 106.423800] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C12D [ 106.921317] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C12D [ 107.414864] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C12D [ 107.414890] radeon 0000:00:10.0: GPU reset succeed [ 107.414896] radeon 0000:00:10.0: GPU reset succeeded, trying to resume [ 107.414908] radeon 0000:00:10.0: (r100_asic_reset:2567) RBBM_STATUS=0x8002C12D [ 107.912414] radeon 0000:00:10.0: (r100_asic_reset:2588) RBBM_STATUS=0x8002C12D [ 108.405959] radeon 0000:00:10.0: (r100_asic_reset:2596) RBBM_STATUS=0x8002C12D [ 108.405980] radeon 0000:00:10.0: GPU reset succeed [ 108.406033] radeon 0000:00:10.0: WB disabled [ 108.406043] radeon 0000:00:10.0: fence driver on ring 0 use gpu addr 0x0000000000000000 and cpu addr 0xe2905000 [ 108.541505] radeon: wait for empty RBBM fifo failed ! Bad things might happen. [ 108.676967] Failed to wait GUI idle while programming pipes. Bad things might happen. [ 108.677012] [drm] radeon: ring at 0x0000000000001000 [ 108.685109] [drm] ring test succeeded in 0 usecs [ 118.681889] radeon 0000:00:10.0: ring 0 stalled for more than 10000msec [ 118.681905] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 118.682132] [drm:r100_ib_test [radeon]] *ERROR* radeon: fence wait failed (-35). [ 118.682206] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: failed testing IB on GFX ring (-35). [ 119.189892] radeon 0000:00:10.0: ring 0 stalled for more than 10508msec [ 119.189909] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 119.690658] radeon 0000:00:10.0: ring 0 stalled for more than 11008msec [ 119.690672] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 120.189888] radeon 0000:00:10.0: ring 0 stalled for more than 11508msec [ 120.189900] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 120.690769] radeon 0000:00:10.0: ring 0 stalled for more than 12008msec [ 120.690781] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 121.190404] radeon 0000:00:10.0: ring 0 stalled for more than 12508msec [ 121.190419] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 121.690192] radeon 0000:00:10.0: ring 0 stalled for more than 13008msec [ 121.690207] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 122.189895] radeon 0000:00:10.0: ring 0 stalled for more than 13508msec [ 122.189913] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 122.689887] radeon 0000:00:10.0: ring 0 stalled for more than 14008msec [ 122.689902] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 123.189890] radeon 0000:00:10.0: ring 0 stalled for more than 14508msec [ 123.189905] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 123.689889] radeon 0000:00:10.0: ring 0 stalled for more than 15008msec [ 123.689902] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 124.189891] radeon 0000:00:10.0: ring 0 stalled for more than 15508msec [ 124.189907] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 124.689887] radeon 0000:00:10.0: ring 0 stalled for more than 16008msec [ 124.689900] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 125.189890] radeon 0000:00:10.0: ring 0 stalled for more than 16508msec [ 125.189905] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 125.689888] radeon 0000:00:10.0: ring 0 stalled for more than 17008msec [ 125.689901] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 126.189909] radeon 0000:00:10.0: ring 0 stalled for more than 17508msec [ 126.189926] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 126.689918] radeon 0000:00:10.0: ring 0 stalled for more than 18008msec [ 126.689936] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 127.189903] radeon 0000:00:10.0: ring 0 stalled for more than 18508msec [ 127.189921] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 127.689892] radeon 0000:00:10.0: ring 0 stalled for more than 19008msec [ 127.689910] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 128.189888] radeon 0000:00:10.0: ring 0 stalled for more than 19508msec [ 128.189903] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 128.689881] radeon 0000:00:10.0: ring 0 stalled for more than 20008msec [ 128.689892] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 129.189887] radeon 0000:00:10.0: ring 0 stalled for more than 20508msec [ 129.189900] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 129.689890] radeon 0000:00:10.0: ring 0 stalled for more than 21008msec [ 129.689906] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 130.189895] radeon 0000:00:10.0: ring 0 stalled for more than 21508msec [ 130.189913] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 130.689886] radeon 0000:00:10.0: ring 0 stalled for more than 22008msec [ 130.689900] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 131.189888] radeon 0000:00:10.0: ring 0 stalled for more than 22508msec [ 131.189903] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 131.689885] radeon 0000:00:10.0: ring 0 stalled for more than 23008msec [ 131.689898] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 132.189885] radeon 0000:00:10.0: ring 0 stalled for more than 23508msec [ 132.189897] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 132.689882] radeon 0000:00:10.0: ring 0 stalled for more than 24008msec [ 132.689895] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 133.189891] radeon 0000:00:10.0: ring 0 stalled for more than 24508msec [ 133.189905] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 133.689894] radeon 0000:00:10.0: ring 0 stalled for more than 25008msec [ 133.689911] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 134.189888] radeon 0000:00:10.0: ring 0 stalled for more than 25508msec [ 134.189902] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 134.689887] radeon 0000:00:10.0: ring 0 stalled for more than 26008msec [ 134.689900] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 135.189884] radeon 0000:00:10.0: ring 0 stalled for more than 26508msec [ 135.189896] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 135.689885] radeon 0000:00:10.0: ring 0 stalled for more than 27008msec [ 135.689897] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 136.189883] radeon 0000:00:10.0: ring 0 stalled for more than 27508msec [ 136.189894] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 136.689884] radeon 0000:00:10.0: ring 0 stalled for more than 28008msec [ 136.689895] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 137.189882] radeon 0000:00:10.0: ring 0 stalled for more than 28508msec [ 137.189895] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 137.689884] radeon 0000:00:10.0: ring 0 stalled for more than 29008msec [ 137.689895] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 138.189883] radeon 0000:00:10.0: ring 0 stalled for more than 29508msec [ 138.189894] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 138.689885] radeon 0000:00:10.0: ring 0 stalled for more than 30008msec [ 138.689897] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 139.189887] radeon 0000:00:10.0: ring 0 stalled for more than 30508msec [ 139.189901] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 139.689886] radeon 0000:00:10.0: ring 0 stalled for more than 31008msec [ 139.689898] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 140.189887] radeon 0000:00:10.0: ring 0 stalled for more than 31508msec [ 140.189902] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 140.689883] radeon 0000:00:10.0: ring 0 stalled for more than 32008msec [ 140.689895] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 141.189883] radeon 0000:00:10.0: ring 0 stalled for more than 32508msec [ 141.189894] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 141.689895] radeon 0000:00:10.0: ring 0 stalled for more than 33008msec [ 141.689909] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) [ 142.189897] radeon 0000:00:10.0: ring 0 stalled for more than 33508msec [ 142.189928] radeon 0000:00:10.0: GPU lockup (current fence id 0x0000000000000144 last fence id 0x0000000000000168 on ring 0) with: # uname -a Linux debian 4.4.0-0.bpo.1-powerpc #1 Debian 4.4.6-1~bpo8+1 (2016-03-20) ppc GNU/Linux