[Bug 93578] [SKL] failed to train DP when connected with DA200 adapter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93578

--- Comment #149 from Daniele Albrizio <dalbrizio at gmail.com> ---
Well, I'm sorry, but new ubuntu kernels did not fix the DA200 behaviour in my
case (I use a Samsung B523WS monitor and dell XPS 13) i tried
kernel_upgrade_4_13_rc4 and the new   kernel_upgrade_4_13, but the result is a
plethora of syslog failures and blank screen on samsung monitor.

When I connect the dongle I get this messages:
https://pastebin.com/L6DsVDhq

When I connect the HDMI cable I get this messages:
https://pastebin.com/0wpn6rZy

The main error seems to be:
 [drm:intel_dp_get_link_train_fallback_values [i915]] *ERROR* Link Training
Unsuccessful

This is the xrandr output:

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
eDP-1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis)
294mm x 165mm
   1920x1080     59.93 +
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1280x1024     60.02  
   1440x900      59.89  
   1280x960      60.00  
   1360x768      59.80    59.96  
   1152x864      60.00  
   1024x768      60.04*   60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   960x600       60.00  
   960x540       59.99  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   800x512       60.17  
   700x525       59.98  
   640x512       60.02  
   720x450       59.89  
   640x480       60.00    59.94  
   680x384       59.80    59.96  
   576x432       60.06  
   512x384       60.00  
   400x300       60.32    56.34  
   320x240       60.05  
DP-1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 509mm x
286mm
   1280x800      59.91  
   1024x768      60.00* 
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
DP-2 disconnected (normal left inverted right x axis y axis)


Any suggestions? Should I reopen this bug report?

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20170906/19021395/attachment-0001.html>