Black screen after create a new resolution

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I buyed a new monitor ultrawide. Because 2560x1080 isn't in the defaults ubuntu size screen I tried to create it with xrand but when I apply the new created resolution the screen is became black and show the message "no signal".
My graphic card is an AMD radeon hd 6670.
My ubuntu version is 18.04.1
18.04 display-resolution amd-graphics monitor
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up vote
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down vote
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I buyed a new monitor ultrawide. Because 2560x1080 isn't in the defaults ubuntu size screen I tried to create it with xrand but when I apply the new created resolution the screen is became black and show the message "no signal".
My graphic card is an AMD radeon hd 6670.
My ubuntu version is 18.04.1
18.04 display-resolution amd-graphics monitor
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
up vote
-1
down vote
favorite
up vote
-1
down vote
favorite
I buyed a new monitor ultrawide. Because 2560x1080 isn't in the defaults ubuntu size screen I tried to create it with xrand but when I apply the new created resolution the screen is became black and show the message "no signal".
My graphic card is an AMD radeon hd 6670.
My ubuntu version is 18.04.1
18.04 display-resolution amd-graphics monitor
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I buyed a new monitor ultrawide. Because 2560x1080 isn't in the defaults ubuntu size screen I tried to create it with xrand but when I apply the new created resolution the screen is became black and show the message "no signal".
My graphic card is an AMD radeon hd 6670.
My ubuntu version is 18.04.1
18.04 display-resolution amd-graphics monitor
18.04 display-resolution amd-graphics monitor
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Dec 5 at 1:43
David Soto
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1
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
David Soto is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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David Soto is a new contributor. Be nice, and check out our Code of Conduct.
David Soto is a new contributor. Be nice, and check out our Code of Conduct.
David Soto is a new contributor. Be nice, and check out our Code of Conduct.
David Soto is a new contributor. Be nice, and check out our Code of Conduct.
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