Start up for my HP Monitor is taking 40 minutes since I did an HP Computuer Upgrade

[Marty6999]

I received notice of an update for the HP Operating System and allowed the update.  However, as a result, instead of having the monitor go on instantaneously, it now takes about 45 minutes for the monitor to turn on and become active.  I am being forced to leave it in sleep mode when not using it.  Any suggestions on how to get the monitor to respond in a more timely manner?

[WAWood]

@Marty6999 

The monitor should turn on and show the HP logo as soon as you turn on the PC.

So, let's try a test.  After the PC has been on for an hour, turn the PC off.  Then turn the PC back on.  If the monitor NOW comes on right away, then the monitor is failing and has to heat up for 30 minutes or more before the display will work.  If the monitor still stays off and takes over 40 minutes to turn on, you need to see about connecting another monitor to see if that makes a difference.

[Marty6999]

Unfortunately, turning the computer off does not result in an instantaneous turning on of the monitor.   The HP monitor is new (no more than 3 months old) and had previously turned on quickly.  I purchased it as a replacement for an earlier monitor which was having difficulty turning on.  Since the symptoms are similar for two monitors, I am concerned that it might be something related to the computer operating system.  As I mentioned, there had been an update for the computer about a week ago after which the monitor became unresponsive.

mfrank6999

[WAWood]

@Marty6999 

Even if there were no OS on the PC, the monitor should still turn on right away.

The HP logo is contained in a chip on the motherboard, so the OS has not started yet when the logo gets displayed.  This is one way to tell that folks' drives have died -- they see the logo and then nothing else.

So, the fact you are not even getting the logo implies a serious problem with the motherboard and integrated video chip, or with a separate video card, not with Windows.

This could be checked by hooking your current monitor to another PC (to see if it turns on right away) and then hooking a different monitor to yours (to see if it does not).  If the monitor swap still shows display issues with your PC, it could also be the video card (if you have a separate card) or the video chip.

You should press the Esc key repeatedly while next rebooting and when the HP Startup Menu appears, press F2 to run diagnostics.  That should provide the option to check the video.

[Marty6999]

I just installed a BIOS update from HP and lo and behold, the monitor now comes up promptly.  

[WAWood]

@Marty6999 

That's surprising -- would not have expected that -- but good to see it's working OK again.