From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 98333] 4K @ 60Hz over HDMI 2.0 not working with AMDGPU-DAL Date: Fri, 02 Dec 2016 22:02:07 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1067139167==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 1BA476EA26 for ; Fri, 2 Dec 2016 22:02:07 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1067139167== Content-Type: multipart/alternative; boundary="14807161270.ADD9.9298"; charset="UTF-8" --14807161270.ADD9.9298 Date: Fri, 2 Dec 2016 22:02:06 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D98333 --- Comment #7 from John Bridgman --- The NVidia ticket suggests this might be an EDID issue, with the display sa= ying that it supports 4:2:2 at 4K/60 Hz when in fact it only supports 4:2:0. Or could have been an NVidia driver bug that caused problems when modes for both 4:2:2 and 4:2:0 were available, hard to say. Anyways, seems like if we= can get the driver to try 4:2:0 (possibly ignoring the monitor to do so) then it should work at 60 Hz. --=20 You are receiving this mail because: You are the assignee for the bug.= --14807161270.ADD9.9298 Date: Fri, 2 Dec 2016 22:02:07 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comment= # 7 on bug 98333<= /a> from John Bridgman 
The NVidia ticket suggests this might be an EDID issue, with t=
he display saying
that it supports 4:2:2 at 4K/60 Hz when in fact it only supports 4:2:0.

Or could have been an NVidia driver bug that caused problems when modes for
both 4:2:2 and 4:2:0 were available, hard to say. Anyways, seems like if we=
 can
get the driver to try 4:2:0 (possibly ignoring the monitor to do so) then it
should work at 60 Hz.

You are receiving this mail because:
  • You are the assignee for the bug.
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