Screen has stopped blanking...Why?

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Screen has stopped blanking...Why?

Postby No_windows » 2017-02-28 18:21

Jessie with Xfce, and latest updates. Sometime last week I noticed that the screen has stopped blanking/turning off when I'm away from the computer. I come home from work and I can see the glow of the screen before I even enter the house. The first few times I figured the cats must have bumped the mouse or desk.

I've checked the settings in Powermanager, and did a little research with Google....... apparently Powermanager (as of Xfce 4.8 ) uses DPMS, but I really don't know where to go from here.

I haven't made any major changes........I've uninstalled Midori, and the installed the most recent updates as they've been made available. I use Virtualbox for experimenting, so that I don't mess things up.

I have MX-16 running on a vm, and it blanks it's virtual screen, but I still have the mouse cursor and dock showing brightly since they're part of the Jessie host, and the screen isn't really off as it's still glowing even if it's black.
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Re: Screen has stopped blanking...Why?

Postby Segfault » 2017-02-28 18:56

So what does xset print?
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Re: Screen has stopped blanking...Why?

Postby No_windows » 2017-02-28 19:06

Code: Select all
xset q
Keyboard Control:
  auto repeat:  on    key click percent:  0    LED mask:  00000002
  XKB indicators:
    00: Caps Lock:   off    01: Num Lock:    on     02: Scroll Lock: off
    03: Compose:     off    04: Kana:        off    05: Sleep:       off
    06: Suspend:     off    07: Mute:        off    08: Misc:        off
    09: Mail:        off    10: Charging:    off    11: Shift Lock:  off
    12: Group 2:     off    13: Mouse Keys:  off
  auto repeat delay:  500    repeat rate:  20
  auto repeating keys:  00ffffffdffffbbf
                        fadfffefffedffff
                        9fffffffffffffff
                        fff7ffffffffffff
  bell percent:  50    bell pitch:  400    bell duration:  100
Pointer Control:
  acceleration:  2/1    threshold:  4
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  60    cycle:  0
Colors:
  default colormap:  0x20    BlackPixel:  0x0    WhitePixel:  0xffffff
Font Path:
  /usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/75dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,/usr/share/fonts/X11/75dpi,built-ins
DPMS (Energy Star):
  Standby: 600    Suspend: 0    Off: 900
  DPMS is Enabled
  Monitor is On


I've sent this right before heading off to work.
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Re: Screen has stopped blanking...Why?

Postby bw123 » 2017-02-28 22:47

screensaver is set for 60 sec? does it come on? Suspend is 0, so it's off, but I think standby is what should work here?


here's mine
Code: Select all
$ xset q | grep -A2 -e Screen -e DPMS
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  0    cycle:  600
--
DPMS (Energy Star):
  Standby: 600    Suspend: 900    Off: 1200
  DPMS is Enabled
  Monitor is On
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Re: Screen has stopped blanking...Why?

Postby golinux » 2017-03-01 01:04

Every so often my Xfce screensaver does that. Go into the screensaver settings and a dialogue should pop up asking if you want to restart the daemon.
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Re: Screen has stopped blanking...Why?

Postby No_windows » 2017-03-01 09:28

bw123 wrote:screensaver is set for 60 sec? does it come on? Suspend is 0, so it's off, but I think standby is what should work here?


I had it at 5 minutes, but changed it to 1 minute for testing purposes....... nothing happens. I'm not really using a screensaver. I haven't had xscreensaver installed since May of 2016 according to the log in Synaptic.
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Re: Screen has stopped blanking...Why?

Postby No_windows » 2017-03-01 09:32

golinux wrote:Every so often my Xfce screensaver does that. Go into the screensaver settings and a dialogue should pop up asking if you want to restart the daemon.


My Xfce installation doesn't have screensaver settings that I can find. I don't have xscreensaver installed. My MX-16 vm does as you say, However.... and it blanks it's screen without the daemon running.
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Re: Screen has stopped blanking...Why?

Postby wizard10000 » 2017-03-01 16:59

Just curious - can you try each of these commands in a terminal window and see if any of them work?

Code: Select all
sleep 3 && xset dpms force standby


Code: Select all
sleep 3 && xset dpms force suspend


Code: Select all
sleep 3 && xset dpms force off
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Re: Screen has stopped blanking...Why?

Postby No_windows » 2017-03-02 06:47

wizard10000 wrote:Just curious - can you try each of these commands in a terminal window and see if any of them work?

Code: Select all
sleep 3 && xset dpms force standby


Code: Select all
sleep 3 && xset dpms force suspend


Code: Select all
sleep 3 && xset dpms force off


They all seemed to work........ screen went black, and came back with mouse movement.
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Re: Screen has stopped blanking...Why?

Postby wizard10000 » 2017-03-02 10:47

No_windows wrote:They all seemed to work........ screen went black, and came back with mouse movement.


Okay, then we know DPMS can shut your monitor off. Can you run

Code: Select all
xset -q


and post the output?
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Re: Screen has stopped blanking...Why?

Postby No_windows » 2017-03-02 16:52

wizard10000 wrote:
Okay, then we know DPMS can shut your monitor off. Can you run

Code: Select all
xset -q


and post the output?


Code: Select all
xset -q
Keyboard Control:
  auto repeat:  on    key click percent:  0    LED mask:  00000002
  XKB indicators:
    00: Caps Lock:   off    01: Num Lock:    on     02: Scroll Lock: off
    03: Compose:     off    04: Kana:        off    05: Sleep:       off
    06: Suspend:     off    07: Mute:        off    08: Misc:        off
    09: Mail:        off    10: Charging:    off    11: Shift Lock:  off
    12: Group 2:     off    13: Mouse Keys:  off
  auto repeat delay:  500    repeat rate:  20
  auto repeating keys:  00ffffffdffffbbf
                        fadfffefffedffff
                        9fffffffffffffff
                        fff7ffffffffffff
  bell percent:  50    bell pitch:  400    bell duration:  100
Pointer Control:
  acceleration:  2/1    threshold:  4
Screen Saver:
  prefer blanking:  yes    allow exposures:  yes
  timeout:  300    cycle:  0
Colors:
  default colormap:  0x20    BlackPixel:  0x0    WhitePixel:  0xffffff
Font Path:
  /usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/75dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,/usr/share/fonts/X11/75dpi,built-ins
DPMS (Energy Star):
  Standby: 600    Suspend: 0    Off: 900
  DPMS is Enabled
  Monitor is On
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Re: Screen has stopped blanking...Why?

Postby wizard10000 » 2017-03-02 17:02

Code: Select all
DPMS (Energy Star):
  Standby: 600    Suspend: 0    Off: 900
  DPMS is Enabled
  Monitor is On


This says monitor should go to standby after ten minutes and power down after 15. We already established that DPMS works, so I guess my next question would be is your power manager overriding these settings? I'd shut off the power manager for a bit and see if the display powers down normally, I guess.
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Re: Screen has stopped blanking...Why?

Postby Segfault » 2017-03-02 17:06

Funny, just yesterday I noticed my screen didn't go to standby either. I had dosemu running, the window was minimized, but somehow it affected power management. I do not have xscreensaver installed either, using Xorg built-in power feature.
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Re: Screen has stopped blanking...Why?

Postby No_windows » 2017-03-02 18:06

wizard10000 wrote:
Code: Select all
DPMS (Energy Star):
  Standby: 600    Suspend: 0    Off: 900
  DPMS is Enabled
  Monitor is On


This says monitor should go to standby after ten minutes and power down after 15. We already established that DPMS works, so I guess my next question would be is your power manager overriding these settings? I'd shut off the power manager for a bit and see if the display powers down normally, I guess.


In Powermanager, I have "Blank", "Put to sleep", and "Switch off after" set to 5, 10, and 15 minutes. I guess I can shut the power manager down, and see what happens, but it's the way I thought I had been controlling this......when it worked.
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Re: Screen has stopped blanking...Why?

Postby wizard10000 » 2017-03-02 20:10

No_windows wrote:In Powermanager, I have "Blank", "Put to sleep", and "Switch off after" set to 5, 10, and 15 minutes. I guess I can shut the power manager down, and see what happens, but it's the way I thought I had been controlling this......when it worked.


Apparently not - since DPMS seems to work from a terminal session. I think your power manager is broken and if you shut it off and screen blanks correctly that'd pretty much confirm.

If you don't want to wait 10m to find out you can reset those timeouts outside of your power manager - check out xset's man page.
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