18.04 wont wake up unless I turn off my montitor then back on.

I just installed 18.04 on a new system and the only way i can get ubuntu to exit sleep mode is to turn off my monitor and turn it on again. Tapping keys and moving the mouse does not do it, like in 16.04 and 14.

I used the caffeine extension but that keeps the monitor always on, I installed xscreensaver but it seems to not work after a reboot.

I dont have an nvidia card, its on board intel graphics.

Ive tried with wayland and X and the same thing happens.

Any idea how to exit sleep mode without turning off the monitor all the time?

Thanks.

Originally Posted by Raxnic I just installed 18.04 on a new system and the only way i can get ubuntu to exit sleep mode is to turn off my monitor and turn it on again. Tapping keys and moving the mouse does not do it, like in 16.04 and 14. I used the caffeine extension but that keeps the monitor always on, I installed xscreensaver but it seems to not work after a reboot. I dont have an nvidia card, its on board intel graphics. Ive tried with wayland and X and the same thing happens. Any idea how to exit sleep mode without turning off the monitor all the time? Thanks.

Have you tried System/Preferences/PowerManagement an unchecking put screen to sleep?

Originally Posted by permaroot Have you tried System/Preferences/PowerManagement an unchecking put screen to sleep?

Yes, Ive played around with all the power settings and sleep settings. I did mistype my post, its not sleep mode its power savings. If I uncheck it or set it to never blank the screen then its always on, If I chose a time to turn off, then after it blanks thats when it wont come back on and I have to turn off the monitor then back on.

Originally Posted by Raxnic Yes, Ive played around with all the power settings and sleep settings. I did mistype my post, its not sleep mode its power savings. If I uncheck it or set it to never blank the screen then its always on, If I chose a time to turn off, then after it blanks thats when it wont come back on and I have to turn off the monitor then back on.

Sounds like it could be driver related? Can you see if the video drivers changed from v16 to v18?

Originally Posted by permaroot Sounds like it could be driver related? Can you see if the video drivers changed from v16 to v18?

I guessing they must have, since this is a totally different computer and about 12 years newer than the one I have v16 on.

Originally Posted by Raxnic I guessing they must have, since this is a totally different computer and about 12 years newer than the one I have v16 on.

It could also be updated versions of the programs that handle the behavior that you are talking about.

Start searching and see what has changed in respects to video drivers or programs whose behavior has changed and see about rolling back to the previous versions of said drivers/programs.

Originally Posted by permaroot It could also be updated versions of the programs that handle the behavior that you are talking about. Start searching and see what has changed in respects to video drivers or programs whose behavior has changed and see about rolling back to the previous versions of said drivers/programs.

I will look into that, Thanks.

Since I switched to Cinnamon the behaviour has changed. Now the monitor comes back on with a touch of the mouse from the login screen. I am using a screen saver now. I can choose the black screen option as a screen saver.
I guess I will leave it at that.

Thanks.

Well, I guess its not solved. What I previously posted is not correct. If I leave the login screen up and "something" goes to

sleeps then I have to turn off the monitor and turn it back on for Ubuntu to come back to life, If I am logged in as a user

then I move the mouse or hit the keyboard and it pops to life. Ubuntu 16 and 14 did not do this, same monitor.


I checked the power settings, bios settings, and monitor monitor and dont see any reason it would do this.


I am pretty sure if I deactivate the screensaver then this behaviour would happen when logged in also.

Originally Posted by Raxnic I just installed 18.04 on a new system and the only way i can get ubuntu to exit sleep mode is to turn off my monitor and turn it on again. Tapping keys and moving the mouse does not do it, like in 16.04 and 14. I used the caffeine extension but that keeps the monitor always on, I installed xscreensaver but it seems to not work after a reboot. I dont have an nvidia card, its on board intel graphics. Ive tried with wayland and X and the same thing happens. Any idea how to exit sleep mode without turning off the monitor all the time? Thanks.

are you using an HDMI connection to your monitor? just curious....

Originally Posted by dna9 are you using an HDMI connection to your monitor? just curious....

Yes, and I was not before...........

I will give VGA a try and see if that resolves the issue.