<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [KBL] "enable_rc6" parameter deprecation brings back freezing" href="https://bugs.freedesktop.org/show_bug.cgi?id=105962#c29">Comment # 29</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [KBL] "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:freedesktop.org@nospam.mooo.com" title="paulz <freedesktop.org@nospam.mooo.com>"> paulz</a> <pre>(In reply to Imre Deak from <a href="show_bug.cgi?id=105962#c11">comment #11</a>) > I'm guessing the DC state toggling is due to GPU activity, probably due to > updating the clock in your GUI. Could you try preventing these updates (and > any other GPU activity) for instance by switching away to another VT from > your GUI and seeing if the freeze still happens? Please also provide a dmesg > log booting with drm.debug=0x1f up to the freeze to double-check what causes > the DC state toggling. i've removed the option to disable i915 rc6 and added instead a udev rule to lock the GPU frequency and boost (!) frequency to PR1. ACTION=="add", KERNEL=="card0", SUBSYSTEM=="drm", ATTR{gt_max_freq_mhz}="300", ATTR{gt_boost_freq_mhz}="300" Until now no Freeze!! (since yesterday keeping power on)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>