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Second monitor not waking from sleep

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http://forums.fedoraforum.org – I have a 13" MBP running Fedora 18. When the systems goes into powersave mode and shuts off the display (which I would like it to do after a period of time), the laptop screen wakes from sleep, but the 30" external monitor does not. If I unplug the monitor and plug it back in it restores the display. Not a major issue, but a bit of an on-going annoyance. Anyone else experiencing this? (HowTos)

leex's picture
Submitted by leex on 02/01/2013

Stories similar to Second monitor not waking from sleep

Hallo, I'm running Ubuntu 12.04 with latest updates on HP desktop computer with embed sandy bridge intel graphic card and onboard display port connector. The problem is that, when the monitor goes to sleep and it is connected to the display port, it will never wake up. I have to hard restart the computer.

Karmic 9.10

Hi, I just recently switched from Ubuntu to Fedora 11, and noticed that the very same thing that was bugging me with Ubuntu behaves the same with Fedora. Although I have configured APM to put the monitor to sleep, it only appears to display a black screen. I can tell 'cause the backlight of the TFT monitor remains lid. I had this very same problem with Ubuntu, in both Gnome and KDE environments.

Huh, weird. When I posted the above I ran “export LANG="en_GB.UTF-8"” followed by “xfce4-power-manager-settings” to see how the options are named in English. The monitor sleep mode was set to “Suspend”, which everywhere else seems to correspond to the term “Standby” when the language is set to German.

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