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Monitor Acer F20 does not wake up from sleep

Discussion in 'Hardware' started by cab, Oct 18, 2007.

  1. cab

    cab Guest

    I have an Acer F20 monitor (very nice screen !) connected to an HP
    Vectra with XP-SP2.
    Sometimes when the PC goes to sleep, the monitor will not completely go
    to standby; instead it becomes night-blue (almost black) with the lamp
    still on. Then waking the PC up will not reactivate the monitor. No way
    to make it work or even react (like switching to other inputs) again,
    either using the buttons or the remote control. The only way is to pull
    the power plug !!!
    So I believe it is a monitor related problem, but maybe the PC does
    something weird ?

    CAB
    cab, Oct 18, 2007
    #1
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  2. cab

    kony Guest

    On Thu, 18 Oct 2007 20:15:24 +0200, cab <>
    wrote:

    >I have an Acer F20 monitor (very nice screen !) connected to an HP
    >Vectra with XP-SP2.
    >Sometimes when the PC goes to sleep, the monitor will not completely go
    >to standby; instead it becomes night-blue (almost black) with the lamp
    >still on. Then waking the PC up will not reactivate the monitor. No way
    >to make it work or even react (like switching to other inputs) again,
    >either using the buttons or the remote control. The only way is to pull
    >the power plug !!!
    >So I believe it is a monitor related problem, but maybe the PC does
    >something weird ?
    >
    >CAB



    I would've wondered if the video card driver had a problem
    and should be replaced, but that should not require the
    monitor to be power cycled. I would suspect the monitor but
    another way to isolate the problem would be to try another
    monitor.
    kony, Oct 18, 2007
    #2
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  3. cab

    cab Guest

    kony wrote:
    > On Thu, 18 Oct 2007 20:15:24 +0200, cab <>
    > wrote:
    >
    >> I have an Acer F20 monitor (very nice screen !) connected to an HP
    >> Vectra with XP-SP2.
    >> Sometimes when the PC goes to sleep, the monitor will not completely go
    >> to standby; instead it becomes night-blue (almost black) with the lamp
    >> still on. Then waking the PC up will not reactivate the monitor. No way
    >> to make it work or even react (like switching to other inputs) again,
    >> either using the buttons or the remote control. The only way is to pull
    >> the power plug !!!
    >> So I believe it is a monitor related problem, but maybe the PC does
    >> something weird ?
    >>
    >> CAB

    >
    >
    > I would've wondered if the video card driver had a problem
    > and should be replaced, but that should not require the
    > monitor to be power cycled. I would suspect the monitor but
    > another way to isolate the problem would be to try another
    > monitor.


    I think I've found the issue. I had the Power Options on the PC set to
    switch off the monitor after 10 minutes and to set the PC to sleep after
    15 minutes. This apparently locks the monitor, neither the buttons nor
    the remote can be used any more. And it seems that monitor wake-up would
    only happen after unlocking the PC.
    If I set the Power options to first put the PC to sleep and only turn
    off the monitor later, the problem disappears. The monitor does turn off
    when the PC sleeps but can be reactivated normally when the PC wakes up.

    Well, I am not sure I understand the issue, but it seems to be solved...

    CAB
    cab, Oct 21, 2007
    #3
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