Mini DP port not working in XPS 15 l521x
Hi everyone,
I've installed Ubuntu 12.10 in my XPS 15 l521x. I had some issues (i.e. HidPoint is quite unstable for my Logitech wireless mouse/keyboard and works pretty randomly), but now the big one that is stopping me is that I'm unable to make my Mini Display-Port working.
I have a Mini DP to VGA (branded Apple) connected to an external monitor. The monitor is working and recognized in Windows 8, but there's no way I can make it work through Ubuntu (it doesn't even detect the display).
Code:
$ xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1920x1080 60.0*+ 59.9 40.0
1680x1050 60.0 59.9
1600x1024 60.2
1400x1050 60.0
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
$ lspci | grep -i VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GK107 [GeForce GT 640M] (rev ff)
Honestly I'm running out of ideas and this functionality is necessary for me. Do you have any suggestion\advice that I can follow?
Thanks!
Re: Mini DP port not working in XPS 15 l521x
I searched for a long time so I share the solution for XPS 15 l521x with Ubuntu 12.10 :
Don't install Bumblebee otherwise uninstall it.
If the file /etc/X11/xorg.conf doesn't exist, create it and copy/paste :
Code:
Section "Device"
Identifier "Device0"
Driver "intel"
BusID "PCI:00:02:0"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
BusID "PCI:01:00:0"
EndSection
Section "Monitor"
Identifier "Monitor0"
HorizSync 30-94
VertRefresh 48-85
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
Option "TwinView" "true"
Option "MetaModes" "1280x1024, 1280x1024; 1024x768, 1024x768"
Option "SecondMonitorHorizSync" "30-83"
Option "SecondMonitorVertRefresh" "56-75"
Option "TwinViewOrientation" "RightOf"
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0"
Screen 1 "Screen1" RightOf "Screen0"
Option "Clone" "on"
EndSection
Section "ServerFlags"
Option "Xinerama" "1"
EndSection
Do CTRL + ALT + F1 then enter :
Code:
sudo service lightdm restart
Warning : if an error is made in the / etc/X11/xorg.conf file -> startup = crash !
But on mine, it works :)
