From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 106191] Failure to recognize DisplayPort signal Date: Mon, 23 Apr 2018 13:23:33 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1592233826==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 99A388925A for ; Mon, 23 Apr 2018 13:23:33 +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 --===============1592233826== Content-Type: multipart/alternative; boundary="15244898130.692a1B229.14737" Content-Transfer-Encoding: 7bit --15244898130.692a1B229.14737 Date: Mon, 23 Apr 2018 13:23:33 +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=3D106191 Bug ID: 106191 Summary: Failure to recognize DisplayPort signal Product: DRI Version: DRI git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: francois.jacques@gmail.com Created attachment 139004 --> https://bugs.freedesktop.org/attachment.cgi?id=3D139004&action=3Dedit callstack from DRM/radeon DRM/radeon fails with in drm_dp_link_rate_to_bw_code=20 Driver fails to negotiate video resolution with DP-connected monitor, on an= y of 4 DP ports.=20 Controller can drive monitor at 2048x1080 through HDMI adapter. Straight DP cable only works in console (low-res) Disconnecting power cable from monitor for 5 minutes trick doesn't help ;) Video controller: FirePro v8800 ChipID 0x6888 (see hardware.txt for details= , 4 DPs) DP monitor: Dell U2717DA=20 Workstation: HP xw8600 Kernel messages with backtrace: see var_log_messages_excerpt.txt Max res supported by monitor: 1440p (see Xorg.0.log) --=20 You are receiving this mail because: You are the assignee for the bug.= --15244898130.692a1B229.14737 Date: Mon, 23 Apr 2018 13:23:33 +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 106191
Summary Failure to recognize DisplayPort signal
Product DRI
Version DRI git
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity major
Priority medium
Component DRM/Radeon
Assignee dri-devel@lists.freedesktop.org
Reporter francois.jacques@gmail.com 

Created attachment 139=
004 [details]
callstack from DRM/radeon

DRM/radeon fails with in drm_dp_link_rate_to_bw_code=20

Driver fails to negotiate video resolution with DP-connected monitor, on an=
y of
4 DP ports.=20
Controller can drive monitor at 2048x1080 through HDMI adapter. Straight DP
cable only works in console (low-res)

Disconnecting power cable from monitor for 5 minutes trick doesn't help ;)

Video controller: FirePro v8800 ChipID 0x6888 (see hardware.txt for details=
, 4
DPs)
DP monitor: Dell U2717DA=20
Workstation: HP xw8600
Kernel messages with backtrace: see var_log_messages_excerpt.txt
Max res supported by monitor: 1440p (see Xorg.0.log)

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