How do dim screen, even if artifically, below the minimum?
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My laptop (a Toshiba Sattelite) runs far too bright, even in the ambient light from outside in the day, and I need to be able to dim it below its minimum setting.
~#cat /sys/class/backlight/acpi_video0/brightness
~#0
Setting it below 0 will not work, and apps like flux even with some hackery to force it to night mode via script by rolling the timezone fails to do too much and leave colours of course yellowed.
Is there some sort of method to set it below its minimum somehow? (uses some integrated nvidia card by the way)
Is there a program I'm missing that will artificially dim it by overlaying transparent black?
ubuntu monitors display-settings
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
|
show 1 more comment
My laptop (a Toshiba Sattelite) runs far too bright, even in the ambient light from outside in the day, and I need to be able to dim it below its minimum setting.
~#cat /sys/class/backlight/acpi_video0/brightness
~#0
Setting it below 0 will not work, and apps like flux even with some hackery to force it to night mode via script by rolling the timezone fails to do too much and leave colours of course yellowed.
Is there some sort of method to set it below its minimum somehow? (uses some integrated nvidia card by the way)
Is there a program I'm missing that will artificially dim it by overlaying transparent black?
ubuntu monitors display-settings
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
seeman xgamma- or otherwise install it if you don't have the package already. Else look at adjusting the RGB settings w/xrandr(which is allxgammadoes anyway).
– mikeserv
Jan 28 '15 at 6:10
@mikeserv, amazing, but it seems to affect white far less than the other colours. The background of this site is quite an eye-sore compared to the now fairly dimmed firefox theme that I have (of greens and oranges) I'll try to see muck with it more.xgamma -gamma 0.4I'd used for example.
– Alex.
Jan 28 '15 at 6:14
also have a look atredshift.
– michas
Jan 28 '15 at 6:15
@mikeserv Excellent, xrandr with--brightness 0.5did the job to dim the white. THANK YOU. very odd this wasn't easier to find, few have asked, maybe my eyes are just more sensitive than the average joe's. Write an answer below? :)
– Alex.
Jan 28 '15 at 6:22
Thanks for asking this question - and the followup comment on--brightness. It had been a while since I hunted this info down and it was a little foggy, but my eyes thank you - they were already a little achy when I found your question and I needed the reminder that there was something I could do about it.
– mikeserv
Jan 28 '15 at 6:48
|
show 1 more comment
My laptop (a Toshiba Sattelite) runs far too bright, even in the ambient light from outside in the day, and I need to be able to dim it below its minimum setting.
~#cat /sys/class/backlight/acpi_video0/brightness
~#0
Setting it below 0 will not work, and apps like flux even with some hackery to force it to night mode via script by rolling the timezone fails to do too much and leave colours of course yellowed.
Is there some sort of method to set it below its minimum somehow? (uses some integrated nvidia card by the way)
Is there a program I'm missing that will artificially dim it by overlaying transparent black?
ubuntu monitors display-settings
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
My laptop (a Toshiba Sattelite) runs far too bright, even in the ambient light from outside in the day, and I need to be able to dim it below its minimum setting.
~#cat /sys/class/backlight/acpi_video0/brightness
~#0
Setting it below 0 will not work, and apps like flux even with some hackery to force it to night mode via script by rolling the timezone fails to do too much and leave colours of course yellowed.
Is there some sort of method to set it below its minimum somehow? (uses some integrated nvidia card by the way)
Is there a program I'm missing that will artificially dim it by overlaying transparent black?
ubuntu monitors display-settings
ubuntu monitors display-settings
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
asked Jan 28 '15 at 5:59
Alex.Alex.
9814
9814
seeman xgamma- or otherwise install it if you don't have the package already. Else look at adjusting the RGB settings w/xrandr(which is allxgammadoes anyway).
– mikeserv
Jan 28 '15 at 6:10
@mikeserv, amazing, but it seems to affect white far less than the other colours. The background of this site is quite an eye-sore compared to the now fairly dimmed firefox theme that I have (of greens and oranges) I'll try to see muck with it more.xgamma -gamma 0.4I'd used for example.
– Alex.
Jan 28 '15 at 6:14
also have a look atredshift.
– michas
Jan 28 '15 at 6:15
@mikeserv Excellent, xrandr with--brightness 0.5did the job to dim the white. THANK YOU. very odd this wasn't easier to find, few have asked, maybe my eyes are just more sensitive than the average joe's. Write an answer below? :)
– Alex.
Jan 28 '15 at 6:22
Thanks for asking this question - and the followup comment on--brightness. It had been a while since I hunted this info down and it was a little foggy, but my eyes thank you - they were already a little achy when I found your question and I needed the reminder that there was something I could do about it.
– mikeserv
Jan 28 '15 at 6:48
|
show 1 more comment
seeman xgamma- or otherwise install it if you don't have the package already. Else look at adjusting the RGB settings w/xrandr(which is allxgammadoes anyway).
– mikeserv
Jan 28 '15 at 6:10
@mikeserv, amazing, but it seems to affect white far less than the other colours. The background of this site is quite an eye-sore compared to the now fairly dimmed firefox theme that I have (of greens and oranges) I'll try to see muck with it more.xgamma -gamma 0.4I'd used for example.
– Alex.
Jan 28 '15 at 6:14
also have a look atredshift.
– michas
Jan 28 '15 at 6:15
@mikeserv Excellent, xrandr with--brightness 0.5did the job to dim the white. THANK YOU. very odd this wasn't easier to find, few have asked, maybe my eyes are just more sensitive than the average joe's. Write an answer below? :)
– Alex.
Jan 28 '15 at 6:22
Thanks for asking this question - and the followup comment on--brightness. It had been a while since I hunted this info down and it was a little foggy, but my eyes thank you - they were already a little achy when I found your question and I needed the reminder that there was something I could do about it.
– mikeserv
Jan 28 '15 at 6:48
see
man xgamma - or otherwise install it if you don't have the package already. Else look at adjusting the RGB settings w/ xrandr (which is all xgamma does anyway).– mikeserv
Jan 28 '15 at 6:10
see
man xgamma - or otherwise install it if you don't have the package already. Else look at adjusting the RGB settings w/ xrandr (which is all xgamma does anyway).– mikeserv
Jan 28 '15 at 6:10
@mikeserv, amazing, but it seems to affect white far less than the other colours. The background of this site is quite an eye-sore compared to the now fairly dimmed firefox theme that I have (of greens and oranges) I'll try to see muck with it more.
xgamma -gamma 0.4 I'd used for example.– Alex.
Jan 28 '15 at 6:14
@mikeserv, amazing, but it seems to affect white far less than the other colours. The background of this site is quite an eye-sore compared to the now fairly dimmed firefox theme that I have (of greens and oranges) I'll try to see muck with it more.
xgamma -gamma 0.4 I'd used for example.– Alex.
Jan 28 '15 at 6:14
also have a look at
redshift.– michas
Jan 28 '15 at 6:15
also have a look at
redshift.– michas
Jan 28 '15 at 6:15
@mikeserv Excellent, xrandr with
--brightness 0.5 did the job to dim the white. THANK YOU. very odd this wasn't easier to find, few have asked, maybe my eyes are just more sensitive than the average joe's. Write an answer below? :)– Alex.
Jan 28 '15 at 6:22
@mikeserv Excellent, xrandr with
--brightness 0.5 did the job to dim the white. THANK YOU. very odd this wasn't easier to find, few have asked, maybe my eyes are just more sensitive than the average joe's. Write an answer below? :)– Alex.
Jan 28 '15 at 6:22
Thanks for asking this question - and the followup comment on
--brightness. It had been a while since I hunted this info down and it was a little foggy, but my eyes thank you - they were already a little achy when I found your question and I needed the reminder that there was something I could do about it.– mikeserv
Jan 28 '15 at 6:48
Thanks for asking this question - and the followup comment on
--brightness. It had been a while since I hunted this info down and it was a little foggy, but my eyes thank you - they were already a little achy when I found your question and I needed the reminder that there was something I could do about it.– mikeserv
Jan 28 '15 at 6:48
|
show 1 more comment
1 Answer
1
active
oldest
votes
With xrandr you can affect the gamma and brightness of a display by altering RGB values.
From man xrandr:
--brightness
Multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this is a software only modification, if your hardware has support to actually change the brightness, you will probably prefer to use
xbacklight.
First find out your screen's output name using xrandr -q. Search for the one that says "connected". If your connected screen is "DVI-1", you can use it like:
xrandr --output DVI-1 --brightness .7
There is also the xgamma package, which does much of the same, but...
man xgamma:
Note that the
xgammautility is obsolete and deficient,xrandrshould be used with drivers that support the XRandr extension.
You can use it like:
xgamma -gamma .7
edited Jan 3 at 13:18
Nav
2211212
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
1
To know correct output (ifDVI-1not works) usexrandr -q
– Pavel
Mar 27 '17 at 22:57
add a comment |
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1 Answer
1
active
oldest
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oldest
votes
active
oldest
votes
With xrandr you can affect the gamma and brightness of a display by altering RGB values.
From man xrandr:
--brightness
Multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this is a software only modification, if your hardware has support to actually change the brightness, you will probably prefer to use
xbacklight.
First find out your screen's output name using xrandr -q. Search for the one that says "connected". If your connected screen is "DVI-1", you can use it like:
xrandr --output DVI-1 --brightness .7
There is also the xgamma package, which does much of the same, but...
man xgamma:
Note that the
xgammautility is obsolete and deficient,xrandrshould be used with drivers that support the XRandr extension.
You can use it like:
xgamma -gamma .7
edited Jan 3 at 13:18
Nav
2211212
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
1
To know correct output (ifDVI-1not works) usexrandr -q
– Pavel
Mar 27 '17 at 22:57
add a comment |
With xrandr you can affect the gamma and brightness of a display by altering RGB values.
From man xrandr:
--brightness
Multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this is a software only modification, if your hardware has support to actually change the brightness, you will probably prefer to use
xbacklight.
First find out your screen's output name using xrandr -q. Search for the one that says "connected". If your connected screen is "DVI-1", you can use it like:
xrandr --output DVI-1 --brightness .7
There is also the xgamma package, which does much of the same, but...
man xgamma:
Note that the
xgammautility is obsolete and deficient,xrandrshould be used with drivers that support the XRandr extension.
You can use it like:
xgamma -gamma .7
edited Jan 3 at 13:18
Nav
2211212
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
1
To know correct output (ifDVI-1not works) usexrandr -q
– Pavel
Mar 27 '17 at 22:57
add a comment |
With xrandr you can affect the gamma and brightness of a display by altering RGB values.
From man xrandr:
--brightness
Multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this is a software only modification, if your hardware has support to actually change the brightness, you will probably prefer to use
xbacklight.
First find out your screen's output name using xrandr -q. Search for the one that says "connected". If your connected screen is "DVI-1", you can use it like:
xrandr --output DVI-1 --brightness .7
There is also the xgamma package, which does much of the same, but...
man xgamma:
Note that the
xgammautility is obsolete and deficient,xrandrshould be used with drivers that support the XRandr extension.
You can use it like:
xgamma -gamma .7
edited Jan 3 at 13:18
Nav
2211212
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
With xrandr you can affect the gamma and brightness of a display by altering RGB values.
From man xrandr:
--brightness
Multiply the gamma values on the crtc currently attached to the output to specified floating value. Useful for overly bright or overly dim outputs. However, this is a software only modification, if your hardware has support to actually change the brightness, you will probably prefer to use
xbacklight.
First find out your screen's output name using xrandr -q. Search for the one that says "connected". If your connected screen is "DVI-1", you can use it like:
xrandr --output DVI-1 --brightness .7
There is also the xgamma package, which does much of the same, but...
man xgamma:
Note that the
xgammautility is obsolete and deficient,xrandrshould be used with drivers that support the XRandr extension.
You can use it like:
xgamma -gamma .7
edited Jan 3 at 13:18
Nav
2211212
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
edited Jan 3 at 13:18
Nav
2211212
edited Jan 3 at 13:18
Nav
2211212
edited Jan 3 at 13:18
Nav
2211212
2211212
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
answered Jan 28 '15 at 6:36
mikeservmikeserv
45.4k668154
45.4k668154
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
1
To know correct output (ifDVI-1not works) usexrandr -q
– Pavel
Mar 27 '17 at 22:57
add a comment |
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
1
To know correct output (ifDVI-1not works) usexrandr -q
– Pavel
Mar 27 '17 at 22:57
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
What about Wayland?
– lkraav
Jul 16 '16 at 20:51
1
1
To know correct output (if
DVI-1 not works) use xrandr -q– Pavel
Mar 27 '17 at 22:57
To know correct output (if
DVI-1 not works) use xrandr -q– Pavel
Mar 27 '17 at 22:57
add a comment |
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see
man xgamma- or otherwise install it if you don't have the package already. Else look at adjusting the RGB settings w/xrandr(which is allxgammadoes anyway).– mikeserv
Jan 28 '15 at 6:10
@mikeserv, amazing, but it seems to affect white far less than the other colours. The background of this site is quite an eye-sore compared to the now fairly dimmed firefox theme that I have (of greens and oranges) I'll try to see muck with it more.
xgamma -gamma 0.4I'd used for example.– Alex.
Jan 28 '15 at 6:14
also have a look at
redshift.– michas
Jan 28 '15 at 6:15
@mikeserv Excellent, xrandr with
--brightness 0.5did the job to dim the white. THANK YOU. very odd this wasn't easier to find, few have asked, maybe my eyes are just more sensitive than the average joe's. Write an answer below? :)– Alex.
Jan 28 '15 at 6:22
Thanks for asking this question - and the followup comment on
--brightness. It had been a while since I hunted this info down and it was a little foggy, but my eyes thank you - they were already a little achy when I found your question and I needed the reminder that there was something I could do about it.– mikeserv
Jan 28 '15 at 6:48