Created attachment 135015 [details] /sys/class/drm/card0/error dump After coming back to my locked laptop (Xubuntu 16.04) the screen was unresponsive. SSHing in had this in dmesg: [12352.526878] [drm] stuck on render ring [12352.527343] [drm] GPU HANG: ecode 8:0:0xbf746ffe, in Xorg [1157], reason: Ring hung, action: reset [12352.527345] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [12352.527346] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [12352.527347] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [12352.527348] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [12352.527349] [drm] GPU crash dump saved to /sys/class/drm/card0/error [12352.529474] drm/i915: Resetting chip after gpu hang [12358.527200] [drm] stuck on render ring [12358.527677] [drm] GPU HANG: ecode 8:0:0xbf746ffe, in Xorg [1157], reason: Ring hung, action: reset [12358.527757] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast, banning! [12358.528992] drm/i915: Resetting chip after gpu hang [13092.568048] [drm] stuck on render ring [13092.568632] [drm] GPU HANG: ecode 8:0:0x0a177ffe, in Postman [9474], reason: Ring hung, action: reset [13092.570766] drm/i915: Resetting chip after gpu hang
That says execlists fails to switch to the next context; please use a more recent kernel. 4.12 or later preferably; if it continues then the error state will at least contain more information pertaining to these issues.
No response in several moths, closing. Please reopen with the requested data, preferrably with the most recent kernel.
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