<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [HSW] stuck on render ring (screen is repeatedly freezing)" href="https://bugs.freedesktop.org/show_bug.cgi?id=88411#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [HSW] stuck on render ring (screen is repeatedly freezing)" href="https://bugs.freedesktop.org/show_bug.cgi?id=88411">bug 88411</a> from <a class="email" href="mailto:iviktorin@fit.vutbr.cz" title="Jan Viktorin <iviktorin@fit.vutbr.cz>"> Jan Viktorin</a> <pre>Hello, yes it does. I use Arch Linux so I've got quite new kernels. All of them were buggy. But the problem changes overtime. Now, with 4.4.5-1-ARCH, it sometimes freezes in a way that I cannot click anywhere (or the clicks are delayed) but I cannot see any garbage on the screen anymore (as I could before). I can see those messages in dmesg: [931469.554401] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A [931469.554411] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun [931469.563758] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B [931469.563770] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun [931530.957849] [drm] stuck on render ring [931530.958314] [drm] GPU HANG: ecode 7:0:0x87d7fefa, in firefox [20825], reason: Ring hung, action: reset [931530.960386] drm/i915: Resetting chip after gpu hang And yes, the problem is usually connected to a web browser. I prefer Firefox. It sometimes does not draw itself immediatelly but with some delay. When playing online videos, it sometimes stops drawing the video (I can just hear the sound). Chromium usually also behaves strange (I cannot confirm at the moment). Just while I am writing this text, a frezee has happened many times: [1182811.842634] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A [1182811.842643] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun [1182811.856148] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B [1182811.856159] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun [1185127.973155] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A [1185127.973167] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun [1185127.984698] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B [1185127.984710] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun [1190430.697806] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A [1190430.697817] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun [1190430.707191] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B [1190430.707202] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>