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Monitor going straight to sleep mode, please help!

Tags:
  • Sleep Mode
  • Monitors
  • Windows 7
  • Laptop Screen
Last response: in Windows 7
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November 24, 2013 1:49:58 PM

My laptop screen is broken, so it's plugged into an old monitor. It was working fine up until yesterday, when I accidentally hit 'sleep' when trying to shut it down.
I left it and went to bed, but when I tried to turn it on this morning, the laptop screen lit up, but the monitor said 'VGA: no input signal' and went straight into sleep mode.
When I plug the VGA cable out of the laptop the monitor says 'Check Video Cable' but stays on, but when I plug it back in it goes straight into sleep mode.
Please help!

More about : monitor straight sleep mode

a b C Monitor
a b $ Windows 7
November 24, 2013 2:42:57 PM

Hi
make sure you have you battery charged and plug you adapter in the laptop.
Also you could try to go in Safe mode - sfter poer on keep pumping on the F8 then if you see options go to Safemode
If you manage to go there hit Window key + R and type cmd > enter
then type :
c:\windows\system32\powercfg.exe -change -monitor-timeout-ac 0
c:\windows\system32\powercfg.exe -change -monitor-timeout-dc 0
c:\windows\system32\powercfg.exe -change -disk-timeout-ac 0
c:\windows\system32\powercfg.exe -change -disk-timeout-dc 0
c:\windows\system32\powercfg.exe -change -standby-timeout-ac 0
c:\windows\system32\powercfg.exe -change -standby-timeout-dc 0
c:\windows\system32\powercfg.exe -change -hibernate-timeout-ac 0
c:\windows\system32\powercfg.exe -change -hibernate-timeout-dc 0

Reboot
I hope this will work :) 
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a b C Monitor
a b $ Windows 7
November 24, 2013 3:26:59 PM

When the laptop is powered on, try pressing Fn+F7. That's the most common keystroke to send the video input to the external monitor.
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Related resources
a b C Monitor
a b $ Windows 7
November 24, 2013 3:35:28 PM

aford10 said:
When the laptop is powered on, try pressing Fn+F7. That's the most common keystroke to send the video input to the external monitor.


Alow me to dissagree ...... Fn + F4 is on most i`v seen - HP mostly :) 
But in the mainroad - i agree this one have slip my mind :) 
- you can try Fn + F4 to circle the VGA output from LCD to external the dual dextop clone
Let`s hope you see any image on the external ...
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a b C Monitor
a b $ Windows 7
November 24, 2013 3:50:36 PM

The appropriate key should have a little monitor icon on it. Pretty much every laptop that I've worked on, it's F7, but it certainly could be a different key.
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