[Bug 106191] Failure to recognize DisplayPort signal - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 106191] Failure to recognize DisplayPort signal
Date: Mon, 23 Apr 2018 13:23:33 +0000	[thread overview]
Message-ID: <bug-106191-502@http.bugs.freedesktop.org/> (raw)

[-- Attachment #1.1: Type: text/plain, Size: 1294 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=106191

            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=139004&action=edit
callstack from DRM/radeon

DRM/radeon fails with in drm_dp_link_rate_to_bw_code 

Driver fails to negotiate video resolution with DP-connected monitor, on any of
4 DP ports. 
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 
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.

[-- Attachment #1.2: Type: text/html, Size: 2723 bytes --]

[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel