From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adam Jackson Subject: Re: [PATCH 1/2] drm/edid: adjust double-clocked cea modes Date: Mon, 14 May 2012 13:37:11 -0400 Message-ID: <1337017031.20580.148.camel@atropine> References: <1336860471-7129-1-git-send-email-daniel.vetter@ffwll.ch> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1369086261==" Return-path: In-Reply-To: <1336860471-7129-1-git-send-email-daniel.vetter@ffwll.ch> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Daniel Vetter Cc: DRI@freedesktop.org, Intel Graphics Development , Development List-Id: dri-devel@lists.freedesktop.org --===============1369086261== Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-xnn8jRBmcMh65WyXcLgD" --=-xnn8jRBmcMh65WyXcLgD Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, 2012-05-13 at 00:07 +0200, Daniel Vetter wrote: > The problem left is that the CEA spec specifies these modes with > timings as they get transmitted, but because the double-clocking is > just to make the HDMI phy happy, the TV actually drops every 2nd > pixel. So e.g. a 1440x576 mode in our CEA mode list is actually a > 720x576 mode. Well, okay, but... > /* 9 - 1440x240@60Hz */ > - { DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478, > + { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478, > 1602, 1716, 0, 240, 244, 247, 262, 0, > DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC | > DRM_MODE_FLAG_DBLCLK) }, ... right after this are the 2800x480 modes. Are they really 720, 1440, or 2880 wide? Both before and after this change they're 2880 wide, but the logic of this change makes me believe they should not be. - ajax --=-xnn8jRBmcMh65WyXcLgD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEABECAAYFAk+xQscACgkQW4otUKDs0NPgugCgiz2mTM5AwzxhaoK3rbZCoDak j8EAoM93Fh7YbkEEF2WjdjALE9yUllC8 =XlrK -----END PGP SIGNATURE----- --=-xnn8jRBmcMh65WyXcLgD-- --===============1369086261== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel --===============1369086261==--