linux-kernel - Re: [PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges

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Message-ID: <20191121101423.GQ11621@lahna.fi.intel.com>
Date:   Thu, 21 Nov 2019 12:14:23 +0200
From:   Mika Westerberg <mika.westerberg@...el.com>
To:     Karol Herbst <kherbst@...hat.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Bjorn Helgaas <helgaas@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Lyude Paul <lyude@...hat.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        nouveau <nouveau@...ts.freedesktop.org>,
        Dave Airlie <airlied@...il.com>,
        Mario Limonciello <Mario.Limonciello@...l.com>
Subject: Re: [PATCH v4] pci: prevent putting nvidia GPUs into lower device
 states on certain intel bridges

On Wed, Nov 20, 2019 at 10:36:31PM +0100, Karol Herbst wrote:
> with the branch and patch applied:
> https://gist.githubusercontent.com/karolherbst/03c4c8141b0fa292d781badfa186479e/raw/5c62640afbc57d6e69ea924c338bd2836e770d02/gistfile1.txt

Thanks for testing. Too bad it did not help :( I suppose there is no
change if you increase the delay to say 1s?