Created attachment 87809 [details] i915_error_state I'm experiencing some really bad GPU hangs + graphics overall slowdown while playing games such as Kerbal Space Program. This might be a temperature dependent thing, but right now the system is not cooling itself via lowering the cpu clock when reaching ~95C like it did with Ubuntu 13.04, but just mysteriously decreasing the performance (games become very laggy) at ~86C (lm-sensor say that is the "high temperature") in Ubuntu 13.10. The laptop in question is a Thinkpad T420. Here's some dmesg logs: [ 3737.594116] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3737.594123] [drm] capturing error event; look for more information in /sys/kernel/debug/dri/0/i915_error_state [ 3737.606201] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x16358000 ctx 2) at 0x163587e4 [ 3759.646704] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3759.646763] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x283c6000 ctx 2) at 0x283c6718 [ 3777.660257] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3777.660316] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28486000 ctx 2) at 0x284861c8 [ 3802.679082] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3802.679152] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x16425000 ctx 2) at 0x164251c8 [ 3810.685111] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3810.685179] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x16506000 ctx 2) at 0x16506260 [ 3838.706195] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3838.706252] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28416000 ctx 2) at 0x284161c8 [ 3838.706256] [drm:i915_set_reset_status] *ERROR* render ring hung flushing bo (0x7ee6000 ctx 2) at 0x284161c8 [ 3845.893990] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj. [ 3847.700964] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3847.701496] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x7ef0000 ctx 2) at 0x7ef01c8 [ 3863.725016] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3863.725060] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x170e0000 ctx 2) at 0x170e051c [ 3863.738137] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for forcewake old ack to clear. [ 3866.978023] hda-intel 0000:00:1b.0: Unstable LPIB (14104 >= 1764); disabling LPIB delay counting [ 3891.710082] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3891.710171] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28cec000 ctx 2) at 0x28cec51c [ 3910.748409] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3910.748494] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28d60000 ctx 2) at 0x28d601c8 [ 3928.749952] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 3928.750016] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x7eb4000 ctx 2) at 0x7eb41c8 [ 4020.843251] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4020.843325] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x283f6000 ctx 2) at 0x283f6534 [ 4033.841035] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4033.841115] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28cdf000 ctx 2) at 0x28cdf51c [ 4071.845631] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4071.845731] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28f79000 ctx 2) at 0x28f7951c [ 4071.859475] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for forcewake old ack to clear. [ 4134.917096] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4134.917173] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x28ed1000 ctx 2) at 0x28ed151c [ 4165.928426] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4165.928481] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x283b6000 ctx 2) at 0x283b61c8 [ 4181.940477] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4181.940547] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x283a6000 ctx 2) at 0x283a6ae4 [ 4216.990852] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4216.990918] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x2af9b000 ctx 2) at 0x2af9b51c [ 4226.998387] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4226.998463] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x2ae72000 ctx 2) at 0x2ae721c8 [ 4234.992398] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 4234.992479] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x2afba000 ctx 2) at 0x2afba1c8 Here's the error state:
*** This bug has been marked as a duplicate of bug 70151 ***
Closing as duplicate of closed+fixed.
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