unable to power off macbook display w/ ubuntu server
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I have two macbooks, one running 16.04 server, another running 18.04 server. I'm trying to disable the monitors to save power
It seems setterm is the command I should be using based on this power management doc and this post
If instead you're using the Linux console (not X-Windows), you'll want
to use setterm(1):
I've tried a couple of the commands to no avail
setterm --powersave onsetterm --half-bright onsetterm --powersave powerdown
Essentially nothing happens when I run these commands. I'm running them at a console on the laptop itself (not over SSH).
setterm --cursor off|on do work, so I feel like setterm is the right direction, but for some reason the power management options do nothing. Maybe there's something I could install that would fix that?
I was looking into disabling kernel modules as well, I've got the nouveau driver, when I run sudo rmmod -f nouveau I get
rmmod: ERROR: ../libkmod/libkmod-module.c:793 kmod_module_remove_module() could not remove 'nouveau': Resource temporarily unavailable
rmmod: ERROR: could not remove module nouveau: Resource temporarily unavailable
I also tried changing the keyboard layout to a Macbook layout and using the built-in keys, but when I press the function key and the appropriate function key to change the brightness, it just acts as if I'm typing random characters into the terminal.
How can I power off my displays?
server power-management macbook
asked Nov 26 at 23:16
quickshiftin
188
add a comment |
up vote
0
down vote
favorite
I have two macbooks, one running 16.04 server, another running 18.04 server. I'm trying to disable the monitors to save power
It seems setterm is the command I should be using based on this power management doc and this post
If instead you're using the Linux console (not X-Windows), you'll want
to use setterm(1):
I've tried a couple of the commands to no avail
setterm --powersave onsetterm --half-bright onsetterm --powersave powerdown
Essentially nothing happens when I run these commands. I'm running them at a console on the laptop itself (not over SSH).
setterm --cursor off|on do work, so I feel like setterm is the right direction, but for some reason the power management options do nothing. Maybe there's something I could install that would fix that?
I was looking into disabling kernel modules as well, I've got the nouveau driver, when I run sudo rmmod -f nouveau I get
rmmod: ERROR: ../libkmod/libkmod-module.c:793 kmod_module_remove_module() could not remove 'nouveau': Resource temporarily unavailable
rmmod: ERROR: could not remove module nouveau: Resource temporarily unavailable
I also tried changing the keyboard layout to a Macbook layout and using the built-in keys, but when I press the function key and the appropriate function key to change the brightness, it just acts as if I'm typing random characters into the terminal.
How can I power off my displays?
server power-management macbook
asked Nov 26 at 23:16
quickshiftin
188
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have two macbooks, one running 16.04 server, another running 18.04 server. I'm trying to disable the monitors to save power
It seems setterm is the command I should be using based on this power management doc and this post
If instead you're using the Linux console (not X-Windows), you'll want
to use setterm(1):
I've tried a couple of the commands to no avail
setterm --powersave onsetterm --half-bright onsetterm --powersave powerdown
Essentially nothing happens when I run these commands. I'm running them at a console on the laptop itself (not over SSH).
setterm --cursor off|on do work, so I feel like setterm is the right direction, but for some reason the power management options do nothing. Maybe there's something I could install that would fix that?
I was looking into disabling kernel modules as well, I've got the nouveau driver, when I run sudo rmmod -f nouveau I get
rmmod: ERROR: ../libkmod/libkmod-module.c:793 kmod_module_remove_module() could not remove 'nouveau': Resource temporarily unavailable
rmmod: ERROR: could not remove module nouveau: Resource temporarily unavailable
I also tried changing the keyboard layout to a Macbook layout and using the built-in keys, but when I press the function key and the appropriate function key to change the brightness, it just acts as if I'm typing random characters into the terminal.
How can I power off my displays?
server power-management macbook
asked Nov 26 at 23:16
quickshiftin
188
I have two macbooks, one running 16.04 server, another running 18.04 server. I'm trying to disable the monitors to save power
It seems setterm is the command I should be using based on this power management doc and this post
If instead you're using the Linux console (not X-Windows), you'll want
to use setterm(1):
I've tried a couple of the commands to no avail
setterm --powersave onsetterm --half-bright onsetterm --powersave powerdown
Essentially nothing happens when I run these commands. I'm running them at a console on the laptop itself (not over SSH).
setterm --cursor off|on do work, so I feel like setterm is the right direction, but for some reason the power management options do nothing. Maybe there's something I could install that would fix that?
I was looking into disabling kernel modules as well, I've got the nouveau driver, when I run sudo rmmod -f nouveau I get
rmmod: ERROR: ../libkmod/libkmod-module.c:793 kmod_module_remove_module() could not remove 'nouveau': Resource temporarily unavailable
rmmod: ERROR: could not remove module nouveau: Resource temporarily unavailable
I also tried changing the keyboard layout to a Macbook layout and using the built-in keys, but when I press the function key and the appropriate function key to change the brightness, it just acts as if I'm typing random characters into the terminal.
How can I power off my displays?
server power-management macbook
server power-management macbook
asked Nov 26 at 23:16
quickshiftin
188
asked Nov 26 at 23:16
quickshiftin
188
edited Nov 27 at 2:07
asked Nov 26 at 23:16
quickshiftin
188
asked Nov 26 at 23:16
quickshiftin
188
asked Nov 26 at 23:16
quickshiftin
188
188
add a comment |
add a comment |
1 Answer
1
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oldest
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up vote
0
down vote
Try setterm -blank force.
You can also try using xrandr to set the brightness to 0. Use xrandr to get your display name and do xrandr --output <display name here> --brightness 0.
Related questions I found: https://unix.stackexchange.com/questions/366868/macbook-ubuntu-server-how-can-i-have-the-screen-turn-off-when-lid-closed-but-k
Manually turn off monitor
Edit: If that doesn’t work, try using DPMS to turn off your monitor. You can use xset. Or, you can also use vbetool although they seem to be the same.
sleep 3; xset dpms force off (note: the sleep is needed so that it doesn’t turn back on which is a known bug with xset dpms force off)
vbetool dpms off
answered Nov 27 at 1:14
an actual toaster
1285
I've triedsetterm -blank force, but it doesn't power off the display, it just blanks it out. I also triedxrandr, that is for X, which I'm not using.
– quickshiftin
Nov 27 at 1:22
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
Try setterm -blank force.
You can also try using xrandr to set the brightness to 0. Use xrandr to get your display name and do xrandr --output <display name here> --brightness 0.
Related questions I found: https://unix.stackexchange.com/questions/366868/macbook-ubuntu-server-how-can-i-have-the-screen-turn-off-when-lid-closed-but-k
Manually turn off monitor
Edit: If that doesn’t work, try using DPMS to turn off your monitor. You can use xset. Or, you can also use vbetool although they seem to be the same.
sleep 3; xset dpms force off (note: the sleep is needed so that it doesn’t turn back on which is a known bug with xset dpms force off)
vbetool dpms off
answered Nov 27 at 1:14
an actual toaster
1285
I've triedsetterm -blank force, but it doesn't power off the display, it just blanks it out. I also triedxrandr, that is for X, which I'm not using.
– quickshiftin
Nov 27 at 1:22
add a comment |
up vote
0
down vote
Try setterm -blank force.
You can also try using xrandr to set the brightness to 0. Use xrandr to get your display name and do xrandr --output <display name here> --brightness 0.
Related questions I found: https://unix.stackexchange.com/questions/366868/macbook-ubuntu-server-how-can-i-have-the-screen-turn-off-when-lid-closed-but-k
Manually turn off monitor
Edit: If that doesn’t work, try using DPMS to turn off your monitor. You can use xset. Or, you can also use vbetool although they seem to be the same.
sleep 3; xset dpms force off (note: the sleep is needed so that it doesn’t turn back on which is a known bug with xset dpms force off)
vbetool dpms off
answered Nov 27 at 1:14
an actual toaster
1285
I've triedsetterm -blank force, but it doesn't power off the display, it just blanks it out. I also triedxrandr, that is for X, which I'm not using.
– quickshiftin
Nov 27 at 1:22
add a comment |
up vote
0
down vote
up vote
0
down vote
Try setterm -blank force.
You can also try using xrandr to set the brightness to 0. Use xrandr to get your display name and do xrandr --output <display name here> --brightness 0.
Related questions I found: https://unix.stackexchange.com/questions/366868/macbook-ubuntu-server-how-can-i-have-the-screen-turn-off-when-lid-closed-but-k
Manually turn off monitor
Edit: If that doesn’t work, try using DPMS to turn off your monitor. You can use xset. Or, you can also use vbetool although they seem to be the same.
sleep 3; xset dpms force off (note: the sleep is needed so that it doesn’t turn back on which is a known bug with xset dpms force off)
vbetool dpms off
answered Nov 27 at 1:14
an actual toaster
1285
Try setterm -blank force.
You can also try using xrandr to set the brightness to 0. Use xrandr to get your display name and do xrandr --output <display name here> --brightness 0.
Related questions I found: https://unix.stackexchange.com/questions/366868/macbook-ubuntu-server-how-can-i-have-the-screen-turn-off-when-lid-closed-but-k
Manually turn off monitor
Edit: If that doesn’t work, try using DPMS to turn off your monitor. You can use xset. Or, you can also use vbetool although they seem to be the same.
sleep 3; xset dpms force off (note: the sleep is needed so that it doesn’t turn back on which is a known bug with xset dpms force off)
vbetool dpms off
answered Nov 27 at 1:14
an actual toaster
1285
edited Nov 28 at 1:03
answered Nov 27 at 1:14
an actual toaster
1285
answered Nov 27 at 1:14
an actual toaster
1285
answered Nov 27 at 1:14
an actual toaster
1285
1285
I've triedsetterm -blank force, but it doesn't power off the display, it just blanks it out. I also triedxrandr, that is for X, which I'm not using.
– quickshiftin
Nov 27 at 1:22
add a comment |
I've triedsetterm -blank force, but it doesn't power off the display, it just blanks it out. I also triedxrandr, that is for X, which I'm not using.
– quickshiftin
Nov 27 at 1:22
I've tried
setterm -blank force, but it doesn't power off the display, it just blanks it out. I also tried xrandr, that is for X, which I'm not using.– quickshiftin
Nov 27 at 1:22
I've tried
setterm -blank force, but it doesn't power off the display, it just blanks it out. I also tried xrandr, that is for X, which I'm not using.– quickshiftin
Nov 27 at 1:22
add a comment |
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