Re: [git pull] drm for v4.8

On Tue, 02 Aug 2016, Linus Torvalds torvalds@linux-foundation.org wrote:

On Tue, Aug 2, 2016 at 4:10 AM, Ville Syrjälä ville.syrjala@linux.intel.com wrote:

...

I have a couple of pending PSR patches you may want to try as well, if i915.enable_psr=0 helps.

Yes. i915.enable_psr=0 seems to make the bad flickering go away.

I'll try your git trees out later, but what exactly changed with regards to psr lately? It's set as a "dangerous" option, and even just clearing it caused

Setting dangerous option enable_psr - tainting kernel

which seems entirely bogus.

The warning comes from kernel/params.c for module_param_named_unsafe() which has no way of knowing which values are safe, and complains if the option is set at all.

BR, Jani.