Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Display receives no signal when turning the display on/off
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Installing Gentoo
View previous topic :: View next topic  
Author Message
deltamalloc
Apprentice
Apprentice


Joined: 18 Jan 2013
Posts: 279

PostPosted: Sun Oct 04, 2015 6:20 pm    Post subject: Display receives no signal when turning the display on/off Reply with quote

When I turn off the display and then back on again, it no longer receives any signal.

I believe this happens because the display in question is a TV and not a normal monitor. When turning the TV off, xrandr doesn't see it at all any longer. So no signal is being sent to it. When the TV turns on again, xrandr can see it, but there is no signal sent to it as the system doesn't recognize that it has returned.

Is there some way I can configure X so that it will re-enable the display once it turns on again?
Back to top
View user's profile Send private message
Roman_Gruber
Advocate
Advocate


Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Sat Oct 17, 2015 12:34 am    Post subject: Reply with quote

well it is all about how you connected that external display.

Quote:
When the TV turns on again, xrandr can see it, but there is no signal sent to it as the system doesn't recognize that it has returned.


You need to write a rule / a script / or find a way to tell the x-server to use that display again.

probably you just need some display section in a hand written xorg.config.

assuming it is a laptop, why do not you, use the special keys to send the video signal to the external port again?

Usually, the nvidia-drivers => nvidia-settings can do that too. so the other gpu drivers should be able to also.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Installing Gentoo All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum