From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pekka Paalanen Subject: Re: Proposal for RandR version 1.6, Leases and EDID-based output grabs Date: Mon, 10 Apr 2017 14:35:31 +0300 Message-ID: <20170410143531.09b84bd7@eldfell> References: <86fuhrka4t.fsf@hiro.keithp.com> <4caa78af-7dc8-fbcf-d2ca-285d4554f5c9@daenzer.net> <86zifsyl6o.fsf@hiro.keithp.com> <20170407105618.200ad289@eldfell> <86lgr9xzi4.fsf@hiro.keithp.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1637172688==" Return-path: In-Reply-To: <86lgr9xzi4.fsf@hiro.keithp.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Keith Packard Cc: xorg-devel@lists.freedesktop.org, Michel =?UTF-8?B?RMOkbnplcg==?= , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1637172688== Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/DZrs.itOPdCvT+dYaJ/ocWn"; protocol="application/pgp-signature" --Sig_/DZrs.itOPdCvT+dYaJ/ocWn Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sun, 09 Apr 2017 10:27:31 -0700 Keith Packard wrote: > Pekka Paalanen writes: >=20 > > we need some kind of a database to recognize HMDs in any case, right? > > It would be best if the database was shared, so that everyone could > > recognize all HMDs, at least as far as one can do that based on EDID. = =20 >=20 > Yeah, I think you've got some good ideas here. Here are some questions > which this raises: >=20 > * What should we do with an HMD which is in the database but for which > no application is installed on the host? IMHO, if nothing is providing a picture intended for the HMD, the HMD should be off. There is no use in showing an arbitrary image that does not look right, is there? For the rest of the questions I can't really say anything, except that even if the database was just a bunch of files, you still need code to access it, and probably something to ensure the entries are well-formed, so that everyone will agree on how to parse them. One should probably decide whether the database will only answer the question "is it a HMD?" or can it provide other information as well. Thanks, pq --Sig_/DZrs.itOPdCvT+dYaJ/ocWn Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEJQjwWQChkWOYOIONI1/ltBGqqqcFAljrbgMACgkQI1/ltBGq qqe1YhAAo9dixVSd/nv/aOpUzOfMbJJva4IUmlAp83+ldc6rm6eNM7GMNcE4h/tc afwbsvRm3R2sR2uQogfzccOSzZOFaWYvJrESpYPek1MH93ZZKexf8zrDxzBH+xuk oPZNuinEsxGhFYtCmGGYMVDHXMc2Htg0spMumomDoF0t2VysB05LV5yJksjCvDCL o/b31/XCGAt4FLk1Tue4DbJjNyDH7+CmZLr25aYsA9aE7f+/X0HRTbcFaS1giHgz 9yh1ZHMYE/JB6T+FU2Xp4otyoH8GTx9mp5s70nAZcyfClEMjO9n+oO4QiAq6nia8 OCrH7ieA+K5WS+gHlQkM7pvaP1YWSOTRjrsQ5YgAgxNLInyIV/N83sz7YkRaB12n uifLtw3ZntVAjUc2bcSMo4JcELVnsQiLzFzNXpHkJpRo6mDCw26ef5XfSop+oy28 YgtLalyfwfocws5Uw4spYN0eCyT0Knws89bja9NcPpPIql1ym11CESdRtXv+Z6Mq 6B2LMvnuokGmoL9CFRDg42ojtKg1lJEM8o/gjdiUO3EqJlrqLbwC/bOJ9Dhz5EIk E/yCGys5oJ5VuEuA4M9kGWZV11KnmgGl+LPmTGBvwVOMpDNOEjlPQHMDcva9zlVD Wc7zMiyskUUOeCdc9mCQzhHPdi5jxq5HcQ+qD673KvwegW3HBag= =W6Jk -----END PGP SIGNATURE----- --Sig_/DZrs.itOPdCvT+dYaJ/ocWn-- --===============1637172688== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============1637172688==--