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harrywsh

Member

Registered: 2018-07-29

Posts: 4

[SOLVED] Monitor connected to laptop but not detected

Sorry for posting this frequently asked question, but I have no idea how to solve the problem.

The laptop's built-in monitor works well and I have one monitor plugged in to the HDMI port. Here is what I see:

xrandr:

Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 340mm x 190mm
   1920x1080     60.02*+  40.03  
HDMI1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

The plugged in monitor is not detected at all. I just installed bumblebee and nvidia driver for my laptop.

cat /var/log/Xorg.0.log = https://pastebin.com/wuBsghpA
dmesg = https://pastebin.com/9bwhtaQD
lspci | grep VGA gives

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)

And the whole lspci -v output: https://pastebin.com/RatPGjeZ

Any advice could be helpful and appreciated.

Last edited by harrywsh (2018-07-29 18:56:48)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,843

Re: [SOLVED] Monitor connected to laptop but not detected

The HDMI port is probably wired to the nvidia chip (common issue) and cannot be used alongside power saving, see https://github.com/Bumblebee-Project/Bu … itor-setup

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

harrywsh

Member

Registered: 2018-07-29

Posts: 4

Re: [SOLVED] Monitor connected to laptop but not detected

The HDMI port is probably wired to the nvidia chip (common issue) and cannot be used alongside power saving, see https://github.com/Bumblebee-Project/Bu … itor-setup

Thanks. I will check it out.

harrywsh

Member

Registered: 2018-07-29

Posts: 4

Re: [SOLVED] Monitor connected to laptop but not detected

I solved the problem by using intel-virtual-output and now I can use two monitors with different contents at the same time.
However, it is still too complicated to enable the dual screen display. Is there any solution where we can finish the switch with just a few combination of key presses? That would be extremely helpful.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,843

Re: [SOLVED] Monitor connected to laptop but not detected

Running 'intel-virtual-output' without any extra parameters will daemonize itself and detect attached displays in the background. It will then perform all the trickery of virtualizing and cloning so that the newly attached screen can be used via conventinal screen management methods, such as cloning/extending with xrandr.

?

Otherwise you can of course bind random commands to shortcuts, but that kinda depends on your desktop environment (w/ xbindkeys being a generic shortcut daemon)

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

harrywsh

Member

Registered: 2018-07-29

Posts: 4

Re: [SOLVED] Monitor connected to laptop but not detected

Thanks. I would try to figure it out.