<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Periodically video will freeze for no specific reason. Sometimes putting '[drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle' in syslog" href="https://bugs.freedesktop.org/show_bug.cgi?id=91495#c9">Comment # 9</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Periodically video will freeze for no specific reason. Sometimes putting '[drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle' in syslog" href="https://bugs.freedesktop.org/show_bug.cgi?id=91495">bug 91495</a> from <a class="email" href="mailto:cpollock@embarqmail.com" title="Chris <cpollock@embarqmail.com>"> Chris</a> <pre>Video froze on 1 June, no errors in syslog, such as 'hangcheck...', that I could see. Mouse cursor would move normally however no applications could be opened. Clock is frozen at the time of the freeze. Applications such as Fetchmail, Procmail and Postfix continue to run as normal. I'm currently running kernel 4.6.0-997-generic #201605222202 SMP Mon May 23 02:03:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux which I installed prior to this freeze. I'm attaching two files. 1. The dmesg output after the freeze, before the reboot. 2. Entries in my syslog possibly dealing with this, I don't know for sure. The file name is SRWatermark.txt This line was added to my /etc/default/grub on 23 May - GRUB_CMDLINE_LINUX_DEFAULT="drm.debug=14 plymouth:debug"</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>