Ubuntu dual displays lose signal, main laptop display goes inactive/non responsive when log out?
Multi tool use
I am running Ubuntu 18.04 and I have two identical external displays(LG) which are connected to my laptop. One through HDMI directly, the other display is connected by VGA. I'm experiencing a couple of issues with this setup:
When both displays are plugged in and when I log out/close laptop lid both displays lose signal and the main laptop display becomes unresponsive (purple screen with mouse icon which doesn't react).
Additionally, when I try to restart the laptop and either of the monitors are connected, the laptop display will return to the unresponsive display state.
To correct either of these, I need to first disconnect all external displays, restart the laptop then connect the HDMI display followed by the VGA display(in that order).
The displays worked perfectly until a couple of days ago, the only change I made to the system was to edit
sudo -H gedit /etc/default/grub
specifically, changing the setting:
GRUB_CMDLINE_LINUX="acpi=force irqpoll"
then updating the GRUB.
I have gone as far as to delete my ~/.config/monitor.xml files, including the untiy-monitor.xml files to no avail.
Edit: Another odd behaviour is that when I go to Settings -> Devices -> Screen Display and make a change then apply those changes all the screens go inactive as usual.
ubuntu laptop multiple-monitors hdmi
edited Feb 7 at 21:02
baelx
1,852817
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
add a comment |
I am running Ubuntu 18.04 and I have two identical external displays(LG) which are connected to my laptop. One through HDMI directly, the other display is connected by VGA. I'm experiencing a couple of issues with this setup:
When both displays are plugged in and when I log out/close laptop lid both displays lose signal and the main laptop display becomes unresponsive (purple screen with mouse icon which doesn't react).
Additionally, when I try to restart the laptop and either of the monitors are connected, the laptop display will return to the unresponsive display state.
To correct either of these, I need to first disconnect all external displays, restart the laptop then connect the HDMI display followed by the VGA display(in that order).
The displays worked perfectly until a couple of days ago, the only change I made to the system was to edit
sudo -H gedit /etc/default/grub
specifically, changing the setting:
GRUB_CMDLINE_LINUX="acpi=force irqpoll"
then updating the GRUB.
I have gone as far as to delete my ~/.config/monitor.xml files, including the untiy-monitor.xml files to no avail.
Edit: Another odd behaviour is that when I go to Settings -> Devices -> Screen Display and make a change then apply those changes all the screens go inactive as usual.
ubuntu laptop multiple-monitors hdmi
edited Feb 7 at 21:02
baelx
1,852817
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
I found a solution for my machine, just running the commandxset s offthenxset -dpms
– Kammryn Dancy
Feb 11 at 16:03
add a comment |
I am running Ubuntu 18.04 and I have two identical external displays(LG) which are connected to my laptop. One through HDMI directly, the other display is connected by VGA. I'm experiencing a couple of issues with this setup:
When both displays are plugged in and when I log out/close laptop lid both displays lose signal and the main laptop display becomes unresponsive (purple screen with mouse icon which doesn't react).
Additionally, when I try to restart the laptop and either of the monitors are connected, the laptop display will return to the unresponsive display state.
To correct either of these, I need to first disconnect all external displays, restart the laptop then connect the HDMI display followed by the VGA display(in that order).
The displays worked perfectly until a couple of days ago, the only change I made to the system was to edit
sudo -H gedit /etc/default/grub
specifically, changing the setting:
GRUB_CMDLINE_LINUX="acpi=force irqpoll"
then updating the GRUB.
I have gone as far as to delete my ~/.config/monitor.xml files, including the untiy-monitor.xml files to no avail.
Edit: Another odd behaviour is that when I go to Settings -> Devices -> Screen Display and make a change then apply those changes all the screens go inactive as usual.
ubuntu laptop multiple-monitors hdmi
edited Feb 7 at 21:02
baelx
1,852817
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
I am running Ubuntu 18.04 and I have two identical external displays(LG) which are connected to my laptop. One through HDMI directly, the other display is connected by VGA. I'm experiencing a couple of issues with this setup:
When both displays are plugged in and when I log out/close laptop lid both displays lose signal and the main laptop display becomes unresponsive (purple screen with mouse icon which doesn't react).
Additionally, when I try to restart the laptop and either of the monitors are connected, the laptop display will return to the unresponsive display state.
To correct either of these, I need to first disconnect all external displays, restart the laptop then connect the HDMI display followed by the VGA display(in that order).
The displays worked perfectly until a couple of days ago, the only change I made to the system was to edit
sudo -H gedit /etc/default/grub
specifically, changing the setting:
GRUB_CMDLINE_LINUX="acpi=force irqpoll"
then updating the GRUB.
I have gone as far as to delete my ~/.config/monitor.xml files, including the untiy-monitor.xml files to no avail.
Edit: Another odd behaviour is that when I go to Settings -> Devices -> Screen Display and make a change then apply those changes all the screens go inactive as usual.
ubuntu laptop multiple-monitors hdmi
ubuntu laptop multiple-monitors hdmi
edited Feb 7 at 21:02
baelx
1,852817
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
edited Feb 7 at 21:02
baelx
1,852817
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
edited Feb 7 at 21:02
baelx
1,852817
edited Feb 7 at 21:02
baelx
1,852817
edited Feb 7 at 21:02
baelx
1,852817
1,852817
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
asked Feb 7 at 17:17
Kammryn DancyKammryn Dancy
62
62
I found a solution for my machine, just running the commandxset s offthenxset -dpms
– Kammryn Dancy
Feb 11 at 16:03
add a comment |
I found a solution for my machine, just running the commandxset s offthenxset -dpms
– Kammryn Dancy
Feb 11 at 16:03
I found a solution for my machine, just running the command
xset s off then xset -dpms– Kammryn Dancy
Feb 11 at 16:03
I found a solution for my machine, just running the command
xset s off then xset -dpms– Kammryn Dancy
Feb 11 at 16:03
add a comment |
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I found a solution for my machine, just running the command
xset s offthenxset -dpms– Kammryn Dancy
Feb 11 at 16:03