From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: v4.18-rc2 on droid4: screen turns red Date: Wed, 1 Aug 2018 20:58:29 +0200 Message-ID: <20180801185829.GD26087@amd> References: <20180630131812.GA549@amd> <20180711102655.GA6864@amd> <20180717062608.GY99251@atomide.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="uxuisgdDHaNETlh8" Return-path: Content-Disposition: inline In-Reply-To: <20180717062608.GY99251@atomide.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren Cc: kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, sre@kernel.org, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org List-Id: linux-omap@vger.kernel.org --uxuisgdDHaNETlh8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > After longer inactivity, attempt to wake up the screen results in > > > screen being completely red. Not too useful. I can still connect over > > > ssh. > >=20 > > Still there in -rc4 :-(. But happens only once in a few days for me... > >=20 > > When X is shut down, text console works ok. >=20 > FYI, I've been chasing an occasional hang with lapdock and it might > be related to the usb phy switching between usb and uart mode > spontaneously. And then the usb traffic can cause a sysrq trigger > potentially when the glitch happens. Not sure yet why it happens, it > might be related to lost cpcap interrupts still. >=20 > Anyways, so far looks like doing the following may have prevented > it. Well at least for about four days of uptime now: >=20 > # echo 0 > /proc/sys/kernel/sysrq >=20 > And no red screens here yet either. Care to check if this might > somehow also prevent your red screen issue? Looks like red screens are pretty seldom :-(. I did not see it since that report. (But I stopped using Droid 4 as my primary phone after it lost some SMS.) Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --uxuisgdDHaNETlh8 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAltiAtUACgkQMOfwapXb+vIZTQCghGff94B8JikA+58iqOLxTm5o QrkAoLs1NDygSxNGMadSDUdsY4DRsEfs =4APA -----END PGP SIGNATURE----- --uxuisgdDHaNETlh8--