Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Thu, 25 Feb 2021 10:53:22 +0100
From:   Pavel Machek <pavel@ucw.cz>
To:     Thomas Zimmermann <tzimmermann@suse.de>
Cc:     kernel list <linux-kernel@vger.kernel.org>,
        jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com,
        rodrigo.vivi@intel.com, intel-gfx@lists.freedesktop.org,
        airlied@redhat.com, sean@poorly.run,
        dri-devel@lists.freedesktop.org
Subject: udldrm does not recover from powersave? Re: udldrmfb: causes WARN in
 i915 on X60 (x86-32)
Message-ID: <20210225095322.GA5089@amd>
References: <20210224200912.GA27905@duo.ucw.cz>
 <452585d5-9d18-f5a8-9d6b-6d39aa037480@suse.de>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
        protocol="application/pgp-signature"; boundary="tKW2IUtsqtDRztdT"
Content-Disposition: inline
In-Reply-To: <452585d5-9d18-f5a8-9d6b-6d39aa037480@suse.de>
User-Agent: Mutt/1.5.23 (2014-03-12)
Precedence: bulk


--tKW2IUtsqtDRztdT
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hi!

> >This is in -next, but I get same behaviour on 5.11; and no, udl does
>=20
> Thanks for reporting. We are in the process of fixing the issue. The late=
st
> patch is at [1].
>

Thank you, that fixes the DMA issue, and I can use the udl.

=2E..for a while. Then screensaver blanks laptop screen, udl screen
blanks too. Upon hitting a key, internal screen shows up, udl does
not.

I try rerunning xrandr ... --auto, but could not recover it.

Any ideas?

Best regards,
								Pavel
--=20
http://www.livejournal.com/~pavelmachek

--tKW2IUtsqtDRztdT
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iEYEARECAAYFAmA3c5IACgkQMOfwapXb+vIK+wCfcBgCyVwqlwT9BhlQBINozkZu
6EMAn2cKNi7+6HsERfcaiq/3RwULgi5f
=/Y0f
-----END PGP SIGNATURE-----

--tKW2IUtsqtDRztdT--