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Thread: How to turn off monitor after some time?

  1. #1

    Default How to turn off monitor after some time?

    Before i have a home server with opensuse 42.3 console mode. It automatically turn off monitor after some time. Now, when i fresh install new transactional opensuse 15, my monitor always on. Where i can configure this parameter?

  2. #2
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    Default Re: How to turn off monitor after some time?

    I'm pretty sure that turning it off is the default behavior. I'm not sure what might have gone wrong.

    Anyway, here's my own report which might be unrelated.

    While running 42.3, the monitor stopped automatically turning off. I wondered if it was "vivaldi". So I closed that before going to bed. And it turned off the next night. But if I kept "vivaldi" running, it would not turn off.

    Then, a few days later, it started behaving normally. I don't know what changed.

    Fast forward to last week. The monitor stopped automatically turning off. I wasn't using "vivaldi" (I switched to "opera" for use with "agregator"). This continued for several nights.

    Then we had severe thunderstorms and a power outage. So I powered off the computer before the UPS ran out. And I powered on later when the main power returned. And the monitor has switched off properly ever since.

    So I am now suspecting a hardware issue in the power supply. Maybe I need to power off once every 6 months or so, to keep it running smoothly.
    openSUSE Leap 15.1; KDE Plasma 5;
    testing Leap 15.2Alpha

  3. #3
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    Default Re: How to turn off monitor after some time?

    I'd suggest looking at ACPi and Power saving settings, both in the Desktop and your monitor.

    Assume you're describing actual power, not just blanking the screen eg screensaver setting.

    I don't remember a utility that would manage monitor and manage power for a monitor, only disks...

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  4. #4

    Default Re: How to turn off monitor after some time?

    Console utilites? Becouse i have no gui installed on laptop, only transactional server mode, that's why i so confused. Becouse in gui mode, such as kde i khow where i can find this setting, but in console mode i have no idea what configuration file i must fix.

  5. #5
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    Default Re: How to turn off monitor after some time?

    You can enter a “consoleblank=” kernel parameter into the Grub boot string. Easy if you use the ncurses version of YaST.
    Code:
    consoleblank=  [KNL] The console blank (screen saver) timeout in               seconds.
                         Defaults to 10*60 = 10mins. 
                         A value of 0 disables the blank timer.
    P.S. What do you mean by “transactional server mode”?
    ~Thank you for sharing an interesting problem.
    --
    slàinte mhath,
    rayH

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    Default Re: How to turn off monitor after some time?

    Quote Originally Posted by rusbaron View Post
    Console utilites? Becouse i have no gui installed on laptop, only transactional server mode, that's why i so confused. Becouse in gui mode, such as kde i khow where i can find this setting, but in console mode i have no idea what configuration file i must fix.
    I've always seen screen blanking, even if I boot to init level 3 (command line, no GUI). With KDE, the desktop takes over. If I login to Icewm, the blanking behavior seems to be the same as with init level 3.

    I never did find a config file except within a GUI desktop.
    openSUSE Leap 15.1; KDE Plasma 5;
    testing Leap 15.2Alpha

  7. #7

    Thumbs up Re: How to turn off monitor after some time?

    Quote Originally Posted by eng-int View Post
    You can enter a “consoleblank=” kernel parameter into the Grub boot string. Easy if you use the ncurses version of YaST.
    Code:
    consoleblank=  [KNL] The console blank (screen saver) timeout in               seconds.
                         Defaults to 10*60 = 10mins. 
                         A value of 0 disables the blank timer.
    P.S. What do you mean by “transactional server mode”?
    Oh my gosh, thks for helping! With consoleblank parameter and google search i found this command: "setterm --blank TIME" and it works!

    ------------------------------------------------------------------------------
    When i installing opensuse i have 4 options with DE:
    • KDE
    • GNOME
    • Server mode
    • Transactional-server mode

    About the last one you can read here

  8. #8
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    Default Re: How to turn off monitor after some time?

    Quote Originally Posted by rusbaron View Post
    When i installing opensuse i have 4 options with DE:
    • KDE
    • GNOME
    • Server mode
    • Transactional-server mode

    About the last one you can read here
    Thanks for the explanation, I had read about (but not really understood) transactional updates in the release notes, but did not know about the install option -- all of my Leap-15s so far have been upgrades.
    ~Thank you for sharing an interesting problem.
    --
    slàinte mhath,
    rayH

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