<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - "enable_rc6" parameter deprecation brings back freezing" href="https://bugs.freedesktop.org/show_bug.cgi?id=105962#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - "enable_rc6" parameter deprecation brings back freezing" href="https://bugs.freedesktop.org/show_bug.cgi?id=105962">bug 105962</a> from <a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> Imre Deak</a> <pre>Did you try if limiting CPU C states also gets rid of the problem (leaving graphics power saving enabled)? If using intel_idle you can boot with the intel_idle.max_cstate=1 kernel parameter to do this. Could you provide a dmesg log booting with drm.debug=0xe? Did you try to collect logs after the freeze?: - via ssh if it still works - net or serial console if the machine has a serial/ethernet plug (for netconsole <a href="https://wiki.archlinux.org/index.php/Netconsole">https://wiki.archlinux.org/index.php/Netconsole</a>) - using pstore, having EFI or RAM based pstore, hard and soft lockup detection enabled in your kconfig and booting with "nmi_watchdog=panic panic=5" kernel parameters.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>