From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 110423] Forced EDID is ignored Date: Sun, 14 Apr 2019 20:15:55 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1788066600==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id EC1FC8913D for ; Sun, 14 Apr 2019 20:15:55 +0000 (UTC) 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 --===============1788066600== Content-Type: multipart/alternative; boundary="15552729551.AF8A0.11918" Content-Transfer-Encoding: 7bit --15552729551.AF8A0.11918 Date: Sun, 14 Apr 2019 20:15:55 +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=3D110423 Bug ID: 110423 Summary: Forced EDID is ignored Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: Heiko.Lechner@ruhr-uni-bochum.de Created attachment 143968 --> https://bugs.freedesktop.org/attachment.cgi?id=3D143968&action=3Dedit output from edid-decode from hacked EDID file I have a tv that does not handle YCbCr properly but advertises it in his ED= ID. So I have to force Full RGB over HDMI because it seems that my RX 570 uses YCbCr by default (maybe because of the HDMI connection?). There is no switch to force Full RGB so I downloaded the EDID with get-edid using i2c and hacked it to disable the advertisement of YcbCr. I copied it = to the initrd and force loaded it via drm.edid_firmware=3Dedid/PhilipsFTV.bin. It works: [ 0.000000] Kernel command line: BOOT_IMAGE=3D/boot/vmlinuz-5.0.0-trunk-= amd64 root=3DUUID=3D1c91ef55-0cf6-4694-bd2a-29aeb6492b3b ro drm.edid_firmware=3Dedid/PhilipsFTV.bin [ 0.849967] platform HDMI-A-1: firmware: direct-loading firmware edid/PhilipsFTV.bin [ 0.850055] [drm] Got external EDID base block and 1 extension from "edid/PhilipsFTV.bin" for connector "HDMI-A-1" But the problems with my tv persist. So I think that the forced EDID is ign= ored by AMDGPU. uname -a: Linux Heimkino-PC 5.0.0-trunk-amd64 #1 SMP Debian 5.0.7-1~exp1 (2019-03-22) x86_64 GNU/Linux --=20 You are receiving this mail because: You are the assignee for the bug.= --15552729551.AF8A0.11918 Date: Sun, 14 Apr 2019 20:15:55 +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
Bug ID 110423
Summary Forced EDID is ignored
Product DRI
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity normal
Priority medium
Component DRM/AMDgpu
Assignee dri-devel@lists.freedesktop.org
Reporter Heiko.Lechner@ruhr-uni-bochum.de 

Created attachment 143968 [details]=

output from edid-decode from hacked EDID file

I have a tv that does not handle YCbCr properly but advertises it in his ED=
ID.
So I have to force Full RGB over HDMI because it seems that my RX 570 uses
YCbCr by default (maybe because of the HDMI connection?).
There is no switch to force Full RGB so I downloaded the EDID with get-edid
using i2c and hacked it to disable the advertisement of YcbCr. I copied it =
to
the initrd and force loaded it via drm.edid_firmware=3Dedid/PhilipsFTV.bin.
It works:
[    0.000000] Kernel command line: BOOT_IMAGE=3D/boot/vmlinuz-5.0.0-trunk-=
amd64
root=3DUUID=3D1c91ef55-0cf6-4694-bd2a-29aeb6492b3b ro
drm.edid_firmware=3Dedid/PhilipsFTV.bin
[    0.849967] platform HDMI-A-1: firmware: direct-loading firmware
edid/PhilipsFTV.bin
[    0.850055] [drm] Got external EDID base block and 1 extension from
"edid/PhilipsFTV.bin" for connector "HDMI-A-1"

But the problems with my tv persist. So I think that the forced EDID is ign=
ored
by AMDGPU.

uname -a:
Linux Heimkino-PC 5.0.0-trunk-amd64 #1 SMP Debian 5.0.7-1~exp1 (2019-03-22)
x86_64 GNU/Linux

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