<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors" href="https://bugs.freedesktop.org/show_bug.cgi?id=109376#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - FIFO underrun, visual glitches and instability with dual monitors" href="https://bugs.freedesktop.org/show_bug.cgi?id=109376">bug 109376</a> from <a class="email" href="mailto:htl10@users.sourceforge.net" title="Hin-Tak Leung <htl10@users.sourceforge.net>"> Hin-Tak Leung</a> <pre>I have a 97MB gz'ed kernel log... is there a place I could upload it? That's partly because I still have "drm.debug=0x1e log_buf_len=4M" on. # grep FIFO kern.log Mar 5 11:07:44 hintak-System-Product-Name kernel: [ 2669.215740] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun Mar 5 12:41:22 hintak-System-Product-Name kernel: [ 8287.823276] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Mar 5 12:41:22 hintak-System-Product-Name kernel: [ 8287.823298] [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to FIFO underrun. Mar 6 10:38:10 hintak-System-Product-Name kernel: [87298.948144] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun Mar 6 14:41:16 hintak-System-Product-Name kernel: [101885.855603] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun grep -E '(Mar 5 1|Mar 5 2|Mar 6 0|Mar 6 1)' kern.log | gzip -c > kern.log-subset.gz</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>