External Monitor problem

All Gurus once were Newbies
Forum rules
There are no such things as "stupid" questions. However if you think your question is a bit stupid, then this is the right place for you to post it. Please stick to easy to-the-point questions that you feel people can answer fast. For long and complicated questions prefer the other forums within the support section.
Before you post please read how to get help
Post Reply
Level 1
Level 1
Posts: 1
Joined: Fri Nov 07, 2014 8:40 pm

External Monitor problem

Post by skic » Fri Nov 07, 2014 8:45 pm

Hello , I plugged in external monitor in VGA port and monitor is detected but it shows just black screen..

Code: Select all

Screen 0: minimum 320 x 200, current 3046 x 1050, maximum 32767 x 32767
LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1366x768       60.1*+   40.0  
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 connected 1680x1050+1366+0 (normal left inverted right x axis y axis) 473mm x 296mm
   1680x1050      60.0*+
   1280x1024      75.0     60.0  
   1440x900       75.0     59.9  
   1280x960       60.0  
   1360x768       59.8  
   1152x864       75.0  
   1280x720       60.0  
   1024x768       75.1     70.1     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     60.0  
   720x400        70.1  
   1920x1080      60.0  
Here is the output of the xrandr.
Laptop HP 4540s
Monitor Acer AL2206W
Linux Mint 16 Petra

I dont know what is the problem please help.

User avatar
Level 1
Level 1
Posts: 40
Joined: Wed May 05, 2010 9:42 am
Location: USA

Re: External Monitor problem

Post by goinglinux » Sat Nov 08, 2014 12:23 am

You may need to enable the monitor in System Settings. You'll find an application in System Settings labeled "Display" or something like that. Click on the graphic that represents your external monitor and flip the switch to "on". If it still doesn't work, try unchecking the box labeled "Mirror". This will allow the laptop and the external monitor to work independently, and with different resolutions.
Larry Bushey
· Going Linux Podcast ·
Ubuntu MATE 18.04 64-bit · Dell XPS 13 9360 · Core i7 · 16GB RAM · 512 GB NVMe SSD

Post Reply

Return to “Newbie Questions”