<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - System hangs for seconds repeatedly and sometimes crashes" href="https://bugs.freedesktop.org/show_bug.cgi?id=94101#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - System hangs for seconds repeatedly and sometimes crashes" href="https://bugs.freedesktop.org/show_bug.cgi?id=94101">bug 94101</a> from <a class="email" href="mailto:milos.kaurin@gmail.com" title="Milos Kaurin <milos.kaurin@gmail.com>"> Milos Kaurin</a> <pre>(In reply to Imre Deak from <a href="show_bug.cgi?id=94101#c12">comment #12</a>) > (In reply to Milos Kaurin from <a href="show_bug.cgi?id=94101#c8">comment #8</a>) > > I also confirm what Jani Nikula said: Setting "i915.i915_enable_rc6=0" > > Should be i915.enable_rc6=0 . Thank you Imre. I stand corrected. Just tried it - "4.4.9-300.fc23.x86_64" with "i915.enable_rc6=0". No i915 stack traces (or any other) with kodi and firefox running for several minutes now. The only thing I see in dmesg regarding rc6 is this line close to boot: [ +0.088745] Setting dangerous option enable_rc6 - tainting kernel For those having the issue, and if you want to use the latest kernel: 1. As root, edit /etc/default/grub 2. Find the line that starts with GRUB_CMDLINE_LINUX * Append i915.enable_rc6=0 * Example: GRUB_CMDLINE_LINUX="rhgb quiet i915.enable_rc6=0" 3a. If you have a BIOS system, follow this guide[1] 3b. If you have a UEFI syste, follow this guide[2] 4. Reboot 5. Check "uname -a" and dmesg to check whether you have set this option correctly 7. Test NOTE: The rc6 option for the i915 appears to control power saving settings[3], so expect higher power consumption. I hope this helps. [1] Updating GRUB 2 on BIOS systems: <a href="https://fedoraproject.org/wiki/GRUB_2?rd=Grub2#Updating_GRUB_2_configuration_on_BIOS_systems">https://fedoraproject.org/wiki/GRUB_2?rd=Grub2#Updating_GRUB_2_configuration_on_BIOS_systems</a> [2] Updating GRUB 2 on UEFI systems: <a href="https://fedoraproject.org/wiki/GRUB_2?rd=Grub2#Updating_GRUB_2_configuration_on_UEFI_systems">https://fedoraproject.org/wiki/GRUB_2?rd=Grub2#Updating_GRUB_2_configuration_on_UEFI_systems</a> [3] <a href="http://blog.vivi.eng.br/?p=162">http://blog.vivi.eng.br/?p=162</a></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>