On Wed, 27 Apr 2016, Mihai Donțu <mihai.dontu@xxxxxxxxx> wrote: > On Wed, 27 Apr 2016 20:36:13 +0300 Mihai Donțu wrote: >> On Wed, 27 Apr 2016 08:28:20 -0700 Rodrigo Vivi wrote: >> > Hi Mihai, >> > >> > What platform do you have? HSW or BDW? >> >> I have an i7, Haswell CPU. >> >> > If you don't know please provide lspci -nn >> >> I have attached the output of lspci, just in case. :-) >> >> > What happens if you boot with i915.enable_psr=2? >> >> I'll try now. > > The behaviour is worse now. The screen flickers every couple of seconds. Another report, please move the discussion there: https://bugs.freedesktop.org/show_bug.cgi?id=95176 Thanks, Jani. > >> > In case it helps, could you please boot with default >> > i915.enable_psr=-1 appying this patch to your kernel to know what your >> > VBT recommends: >> > diff --git a/drivers/gpu/drm/i915/intel_psr.c >> > b/drivers/gpu/drm/i915/intel_psr.c >> > index c3abae4..68bc405 100644 >> > --- a/drivers/gpu/drm/i915/intel_psr.c >> > +++ b/drivers/gpu/drm/i915/intel_psr.c >> > @@ -798,6 +798,8 @@ void intel_psr_init(struct drm_device *dev) >> > /* For new platforms let's respect VBT back again */ >> > dev_priv->psr.link_standby = >> > dev_priv->vbt.psr.full_link; >> > >> > + DRM_ERROR("PSR: VBT recommends link_standby %d, using %d\n", >> > dev_priv->vbt.psr.full_link, dev_priv->psr.link_standby); >> > + >> > /* Override link_standby x link_off defaults */ >> > if (i915.enable_psr == 2 && !dev_priv->psr.link_standby) { >> > DRM_DEBUG_KMS("PSR: Forcing link standby\n"); >> > >> >> I applied your patch and booted with enable_psr=-1 >> >> [ 0.763651] [drm:intel_psr_init] *ERROR* PSR: VBT recommends link_standby 0, using 0 -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
