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Message-ID: <9a8ed0f8e880e1a7387db00c74a9b71210ce6aff.camel@tiscali.nl>
Subject: Re: screen freeze with 5.2-rc6 Dell XPS-13 skylake  i915
From:   Paul Bolle <pebolle@tiscali.nl>
To:     Chris Wilson <chris@chris-wilson.co.uk>,
        James Bottomley <James.Bottomley@HansenPartnership.com>,
        intel-gfx@lists.freedesktop.org
Cc:     linux-kernel <linux-kernel@vger.kernel.org>
Date:   Thu, 11 Jul 2019 13:20:05 +0200
In-Reply-To: <156283735757.12757.8954391372130933707@skylake-alporthouse-com>
References: <1561834612.3071.6.camel@HansenPartnership.com>
         <156283735757.12757.8954391372130933707@skylake-alporthouse-com>
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Chris Wilson schreef op do 11-07-2019 om 10:29 [+0100]:
> Temporary workaround would be to set i915.enable_psr=0

That workaround seems to work for me. Over an hour of uptime without any
screen freezes.

(I first tried fiddling with /sys/module/i915/parameters/enable_psr at
runtime, but that apparently has no effect. Should that file be read-only?)

Feel free to ask me to test a fix (or a revert) once you've figured out what
to do about this.


Paul Bolle