<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [bisected BYT] complete freeze after: drm/i915/vlv: WA for Turbo and RC6 to work together" href="https://bugs.freedesktop.org/show_bug.cgi?id=88012#c99">Comment # 99</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [bisected BYT] complete freeze after: drm/i915/vlv: WA for Turbo and RC6 to work together" href="https://bugs.freedesktop.org/show_bug.cgi?id=88012">bug 88012</a> from <a class="email" href="mailto:jbmacbrodie@yahoo.com" title="John <jbmacbrodie@yahoo.com>"> John</a> <pre>To cap frequency I read the max (779 for mine) from cat /sys/class/drm/card0/gt_max_freq_mhz To set pick a lower value (as root) echo 423 > /sys/kernel/debug/dri/0/i915_max_freq I tried lower values in 100 Mhz steps until I found stability (to 423 in my case). I think you could just put back to the gt_max but this worked for me. This value resets each boot, and the driver rounds the value to something close.</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> </ul> </body> </html>