Reduce display brightness to zero in ubuntu 18.10
I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.
In both DEs, XDG_SESSION_TYPE is x11.
Any one knows why this happens and how I can work around this?
display brightness
add a comment |
I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.
In both DEs, XDG_SESSION_TYPE is x11.
Any one knows why this happens and how I can work around this?
display brightness
add a comment |
I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.
In both DEs, XDG_SESSION_TYPE is x11.
Any one knows why this happens and how I can work around this?
display brightness
I recently tried to use xfce4-session on a standard ubuntu 18.10 machine, and was pleasantly surprised that I could reduce the display brightness to zero (by pressing Fn+F11 on a laptop repeatedly). In a gnome session this is not possible, you can reduce it to a certain degree but no more.
In both DEs, XDG_SESSION_TYPE is x11.
Any one knows why this happens and how I can work around this?
display brightness
display brightness
edited yesterday
qed
asked yesterday
qedqed
244215
244215
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
try
xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05
You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.
And if you would like to have it as a brightness decreasing script you can use:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')
and increasing:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "89"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1123544%2freduce-display-brightness-to-zero-in-ubuntu-18-10%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
try
xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05
You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.
And if you would like to have it as a brightness decreasing script you can use:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')
and increasing:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')
add a comment |
try
xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05
You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.
And if you would like to have it as a brightness decreasing script you can use:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')
and increasing:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')
add a comment |
try
xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05
You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.
And if you would like to have it as a brightness decreasing script you can use:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')
and increasing:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')
try
xrandr --output $(xrandr --current | grep ' connected' | awk '{print $1}') --brightness 0.05
You can use any setting, including 0, but zero will make your screen go completely black so I put 0.05 into the test command so you can still see your screen somewhat and increase the brightness back to normal.
And if you would like to have it as a brightness decreasing script you can use:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 - 0.05)}')
and increasing:
xrandr --output $(xrandr --current | grep ' connected' | awk ' {print $1} ') --brightness $(xrandr --verbose | grep Bright | awk ' { print ($2 + 0.05)}')
edited yesterday
answered yesterday
BarBar1234BarBar1234
43025
43025
add a comment |
add a comment |
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1123544%2freduce-display-brightness-to-zero-in-ubuntu-18-10%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown