<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [drm:skl_set_power_well] *ERROR* power well 2 disable timeout" href="https://bugs.freedesktop.org/show_bug.cgi?id=98564#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [drm:skl_set_power_well] *ERROR* power well 2 disable timeout" href="https://bugs.freedesktop.org/show_bug.cgi?id=98564">bug 98564</a> from <a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> Imre Deak</a> <pre>We seem to clear all request bits so not sure what keeps PW#2 up. Is there any KVM related option in your BIOS setup, could you try with disabling it if so? Also could you give a try to the following to increase the timeout and get some debug info?: diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 0599408..9c7b841 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -764,9 +764,15 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv, } if (wait_for(!!(I915_READ(HSW_PWR_WELL_DRIVER) & state_mask) == enable, - 1)) - DRM_ERROR("%s %s timeout\n", - power_well->name, enable ? "enable" : "disable"); + 10)) + DRM_ERROR("%s %s timeout (%08x %08x %08x %08x %08x %08x)\n", + power_well->name, enable ? "enable" : "disable", + I915_READ(HSW_PWR_WELL_BIOS), + I915_READ(HSW_PWR_WELL_DRIVER), + I915_READ(HSW_PWR_WELL_KVMR), + I915_READ(HSW_PWR_WELL_DEBUG), + I915_READ(HSW_PWR_WELL_CTL5), + I915_READ(HSW_PWR_WELL_CTL6)); if (check_fuse_status) { if (power_well->id == SKL_DISP_PW_1) {</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>