linux-kernel - Re: [Nouveau] [PATCH 1/7] Revert "ACPI / OSI: Add OEM

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Date:   Mon, 21 Oct 2019 10:14:03 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Alex Hung <alex.hung@...onical.com>,
        Karol Herbst <kherbst@...hat.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Dave Airlie <airlied@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        nouveau <nouveau@...ts.freedesktop.org>,
        Mario Limonciello <mario.limonciello@...l.com>,
        Ben Skeggs <bskeggs@...hat.com>,
        Dave Airlie <airlied@...hat.com>
Subject: Re: [Nouveau] [PATCH 1/7] Revert "ACPI / OSI: Add OEM _OSI string to
 enable dGPU direct output"

On Mon, Oct 21, 2019 at 4:14 AM Alex Hung <alex.hung@...onical.com> wrote:
>
> We have done some tests on three of Intel + nVidia configuration
> systems with OEM _OSI strings removed - while some bugs are still
> observed, ex. one out of three has suspend/resume issues, no system
> crashes were observed - the biggest issue that worries us.
>
> The positive results give us confident to ack the removal of the OEM
> _OSI strings. While our tests were not able to cover all possible I+N
> systems, we are sure we can fix issues along the way. If there aren't
> systems that cannot be fixed without these OEM _OSI strings, these
> strings should probably enable with DMI quirks (possible future
> patches) so they won't affect others.
>
> Acked-by: Alex Hung <alex.hung@...onical.com>

OK, thanks!

I can queue this up or if it's better to route it through the DRM
tree, please do that (and let me know).