<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)" href="https://bugs.freedesktop.org/show_bug.cgi?id=94605#c43">Comment # 43</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [SKL] Flashing black screen ([drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun)" href="https://bugs.freedesktop.org/show_bug.cgi?id=94605">bug 94605</a> from <a class="email" href="mailto:grantgrundler@gmail.com" title="ggg <grantgrundler@gmail.com>"> ggg</a> <pre>I've been reproducing this as well _occasionally for the past 6 months on NUC6i5SYB. After updating "Debian testing" two days ago, the "screen blanking" failure rate now makes openarena unplayable. # dmidecode BIOS Information Vendor: Intel Corp. Version: SYSKLi35.86A.0028.2015.1112.1822 Release Date: 11/12/2015 ... BIOS Revision: 5.6 ... Base Board Information Manufacturer: Intel corporation Product Name: NUC6i5SYB Version: H81131-502 Screen blanking for 2-3 seconds while playing openarena on a 2460x1440 resolution (via DisplayPort output) happens every 5-20 seconds. I also noticed the screen blanking doesn't correlate with the "FIFO Underrun" output in dmesg: grundler@gggnuc6:~$ dmesg | grep "gen8_irq_handler" [ 932.176734] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [ 8067.746574] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [ 8152.371139] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [10635.449836] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [50462.953067] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [52083.930871] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [52596.327741] [drm:gen8_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun The last invocation of openarena blanked the screen three different times but only one message appeared. Note that even during "normal use" (e.g. watching youtube or running chrome browser), the screen will sometimes blank. Please advise if there are any parameters I should be trying to avoid the screen blanking or to dump more diagnostic info about the screen blanking.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>