Bug 102992

When two monitors connect via dock station I see:

Screen 0: minimum 320 x 200, current 3520 x 1080, maximum 8192 x 8192                                                                                                                                                                        
LVDS-1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x 174mm                                                                                                                                                       
   1600x900      60.04*+  40.02                                                                                                                                                                                                              
   1024x768      60.04    60.00                                                                                                                                                                                                              
   960x720       60.00                                                                                                                                                                                                                       
   928x696       60.05                                                                                                                                                                                                                       
   896x672       60.01                                                                                                                                                                                                                       
   800x600       60.00    60.32    56.25                                                                                                                                                                                                     
   700x525       59.98                                                                                                                                                                                                                       
   640x512       60.02                                                                                                                                                                                                                       
   640x480       60.00    59.94                                                                                                                                                                                                              
   512x384       60.00                                                                                                                                                                                                                       
   400x300       60.32    56.34                                                                                                                                                                                                              
   320x240       60.05                                                                                                                                                                                                                       
VGA-1 disconnected (normal left inverted right x axis y axis)                                                                                                                                                                                
HDMI-1 disconnected (normal left inverted right x axis y axis)                                                                                                                                                                               
DP-1 connected primary 1920x1080+1600+0 (normal left inverted right x axis y axis) 509mm x 286mm                                                                                                                                             
   1920x1080     60.00*+                                                                                                                                                                                                                     
   3840x1080     60.00                                                                                                                                                                                                                       
   2560x1024     60.00                                                                                                                                                                                                                       
   1680x1050     59.95                                                                                                                                                                                                                       
   1600x900      60.00                                                                                                                                                                                                                       
   1280x1024     60.02                                                                                                                                                                                                                       
   1440x900      59.89                                                                                                                                                                                                                       
   1280x800      59.81                                                                                                                                                                                                                       
   1280x720      60.00                                                                                                                                                                                                                       
   1024x768      60.00                                                                                                                                                                                                                       
   800x600       60.32                                                                                                                                                                                                                       
   640x480       59.94                                                          

and monitors work as twins.

When I connect one monitor in dock station and secondsary in DP port all good.

I see after executed xrandr
LVDS-1 
DP-1
DP-3

Notebook my colleagues with same version OS working without problems on this dock station.

About my OS


[andrey_zak@nb-it-094 mesa-17.1.3]$ glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile 
OpenGL core profile version string: 4.2 (Core Profile) Mesa 17.1.7
OpenGL core profile shading language version string: 4.20
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 17.1.7
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 17.1.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:
[andrey_zak@nb-it-094 mesa-17.1.3]$ uname -a
Linux nb-it-094.main.velcom.by 4.12.13-300.fc26.x86_64 #1 SMP Thu Sep 14 16:00:38 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[andrey_zak@nb-it-094 mesa-17.1.3]$ cat /etc/*release
Fedora release 26 (Twenty Six)
NAME=RFRemix
VERSION="26 (Twenty Six)"
ID=fedora
ID_LIKE=fedora
PRETTY_NAME="RFRemix 26 (Twenty Six)"
VERSION_ID=26
ANSI_COLOR="0;34"
CPE_NAME="cpe:/o:fedoraproject:fedora:26"
HOME_URL="https://fedoraproject.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_BUGZILLA_PRODUCT="Fedora"
REDHAT_BUGZILLA_PRODUCT_VERSION=26
REDHAT_SUPPORT_PRODUCT="Fedora"
REDHAT_SUPPORT_PRODUCT_VERSION=26
PRIVACY_POLICY_URL=https://fedoraproject.org/wiki/Legal:PrivacyPolicy
Fedora release 26 (Twenty Six)
RFRemix release 26 (Twenty Six)
Fedora release 26 (Twenty Six)