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: Thu, 05 Jan 2017 01:34:14 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1658666675==" 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 28F1E6E2B0 for ; Thu, 5 Jan 2017 01:34:14 +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 --===============1658666675== Content-Type: multipart/alternative; boundary="14835800541.6C8a.3280"; charset="UTF-8" --14835800541.6C8a.3280 Date: Thu, 5 Jan 2017 01:34:14 +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 #15 from smoki --- (In reply to wiak from comment #9) > Hey i got the exact same issue with a Samsung HU7505 4k60 television using > amdgpu on xubuntu 16.04.1/16.10, amdgpu-pro-16.50-362463 drivers work in > 4k60 until the display is turned off and then it gives "mode not supporte= d" >=20 On pro it might be just DPMS on/off issue or some monitors (this is actual= ly TV where DPMS is usually off by default) or specific issues/customizations like: "Samsung offers a new user-accessible control called [HDMI UHD Color] on i= ts 2014 range of UHDTVs. Instead of expanding the TV=E2=80=99s gamut to fulfil= Rec.2020 colour space (we wished), it serves to provide support for up to 4:4:4 chro= ma resolution with 4K@60p/50p sources, indicating that the 55HU7500=E2=80=B2s = onboard HDMI 2.0 chip is a full-bandwidth, Level A version. [HDMI UHD Color] has to be enabled manually for each HDMI port where 4K res with 4:2:2 or 4:4:4 reproduction is required, because the chroma information is not auto-detect= ed by the chip Samsung is using." http://www.hdtvtest.co.uk/news/ue55hu7500-201405083761.htm --=20 You are receiving this mail because: You are the assignee for the bug.= --14835800541.6C8a.3280 Date: Thu, 5 Jan 2017 01:34:14 +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

Commen= t # 15 on bug 98333<= /a> from = smoki 
(In reply to wiak from =
comment #9)
> Hey i got the exact same issue with a Samsung HU=
7505 4k60 television using
> amdgpu on xubuntu 16.04.1/16.10, amdgpu-pro-16.50-362463 drivers work =
in
> 4k60 until the display is turned off and then it gives "mode not =
supported"
> 

 On pro it might be just DPMS on/off issue or some monitors (this is actual=
ly
TV where DPMS is usually off by default) or specific issues/customizations
like:

 "Samsung offers a new user-accessible control called [HDMI UHD Color]=
 on its
2014 range of UHDTVs. Instead of expanding the TV=E2=80=99s gamut to fulfil=
 Rec.2020
colour space (we wished), it serves to provide support for up to 4:4:4 chro=
ma
resolution with 4K@60p/50p sources, indicating that the 55HU7500=E2=80=
=B2s onboard HDMI
2.0 chip is a full-bandwidth, Level A version. [HDMI UHD Color] has to be
enabled manually for each HDMI port where 4K res with 4:2:2 or 4:4:4
reproduction is required, because the chroma information is not auto-detect=
ed
by the chip Samsung is using."

 htt=
p://www.hdtvtest.co.uk/news/ue55hu7500-201405083761.htm

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