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Old 01-19-2017, 02:51 PM   #1
dashnieuil
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HDMI output not working properly Mint Rosa Dell E6420 Intel HD grapics 3000


Hello, I am new to Linux - I recently installed kodi on my laptop, Dell Latitude E6420 with Intel HD graphics 3000.
It is connected to my HD TV with a HDMI cable. The TV shows the wallpaper for Linux Mint but not the screen content from the laptop. The TV is detected by the laptop using "Preferences" - "Display" and connected successfully yesterday. I cannot connect today.
A Terminal enquiry xrandr shows HDMI disconnected - how do I connect - help please.
Thanks in advance.
Dashnieuil.

dell@dell-Latitude-E6420 ~ $ xrandr
Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767
LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
1366x768 60.0*+ 40.0
1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
dell@dell-Latitude-E6420 ~ $ arandr
cat /proc/meminfo
 
Old 01-19-2017, 05:06 PM   #2
JeremyBoden
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Clearly your HDMI cable is connected if it is able to show your mint wallpaper!

It's worth noting that the aspect ratios of your monitor and TV could be different:
Monitor 1366x768 (aspect ratio = 1.778)
TV hopefully 1920 x 1080 (aspect ratio = 1.778)

Could your configuration have reverted to the lower resolution monitor when you switched it off?
Is it worth trying to use the VGA connector for the monitor & the HDMI connector for the TV?
 
Old 01-20-2017, 04:32 AM   #3
dashnieuil
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Hi,
Thanks for the input. The monitor is inbuilt to the laptop so it's an internal connection. Both are the same aspect ratio. I have checked or reset the ratio each time I go into "display" and "apply" and although it appears to accept the input I only see the wall paper screen on the TV. Does it make a difference if the HDMI settings as shown in my enquiry* were to show as "connected"? And if so how do I get there?

* HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
VGA1 disconnected (normal left inverted right x axis y axis)
 
Old 01-20-2017, 11:06 AM   #4
JeremyBoden
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It seems unusual for a laptop to have 8 (potentially) video connections!
Are all these connections available as physical sockets?
 
Old 01-20-2017, 11:41 AM   #5
snowday
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Could it simply be that Mint is configuring the display as an additional workspace? Can you drag windows from display to display? Does your laptop have a Fn key or other button, that toggles between display modes?
 
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Old 01-21-2017, 05:07 AM   #6
dashnieuil
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To respond to the above - Jeremy - all the video connections show in response to the randr command. There is one HDMI socket and one VGA socket.

snowpine - Thanks for the help - I hit that Aha! moment the Function key + F8 - thank you. I had played with the function keys previously but not arrived at a solution. We can mark this as solved. Thanks again to both of you. Regards, dashnieuil.
 
  


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