HP f2105 Monitor In OSD Lockout Won't come out of Sleep mode

the monitor is bad
if it will not power on,
or show NOSIG< with XBOX on then turned off the monitor must show NOSIG>
why not test the monitor on any pc made even laptops VGA jacks works, so that works, its not the monitor.
and bad xbox video caused. but is not it. as you said.
the menu needs sync lines active. to pops the OSD button menu.
so the monitor is bad.

or the cable.

what is w2007, lets see.?
its old. at 1680 x 1050 @ 60 Hz



this old monitor runs CCFL lamps.]
im shocked it glows at all up to now.
ever do flash light trick test?
see got data, but no back light, CFFL is dead.

HP W2007
users guide last page.
This HP product contains mercury in the fluorescent lamp
in the display LCD that might
require special handling at
end-of-life:

that means CCFL died, also all do, soon.
(as short as 2 years, full time , they die. 20k hours)
out of your service manual it shows.
what any running pc connected the OSD menu most work
not in sleep mode.
if there is sinc, H/V pins active
that OSD must work or the blacklamp is dead
use flashlight see, there is data there, see?

the manual say push the menu button for 10 seconds, and it unlocks.
sleep mode too go in and turn off power saver
its clock timer that and goes to sleep on time inside the monitor
why not read the manual costs nothing to read
at hp
http://h10032.www1.hp.com/ctg/Manual/c01725831

read page 25
and then read

page 27
amazing no, books, yah, books are so OLDSKOOL

my monitor always fading into sleep mode or some thing,on & off etc..

I did not see anything regarding to the Power locked out function, may be it's time to call HP. Please post back what you find out from HP.
I look at HP WEBSITE: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01632269&tmp_track_link=ot_recdoc/c01643091/en_us/c01632269/loc:1&lc=en&dlc=en&cc=us&product=3770762


Locking OSD settings
When the OSD is locked, settings cannot be changed in the OSD menu. The OSD functionality is enabled or disabled by pressing the Menu button and holding it for 10 seconds. Upon disabling the OSD, an OSD Lock-out message is displayed for 10 seconds. When the OSD is locked and an OSD menu button is pressed, the OSD Lock-out message is displayed for an additional 10 seconds. When the OSD is locked, pressing the OSD menu button for 10 seconds unlocks the OSD and displays the main menu. Identifying monitor conditions
Special messages display on the monitor screen for the following monitor conditions:

• Input Signal Out of Range : Indicates the monitor does not support the input signal because the resolution and/or refresh rate are set higher than the monitor supports. Recommended refresh rates are as follows:
• For the w1858 monitor: 1366 x 768 @ 60 Hz.
• For the w2338h monitor: 1920 x 1080 @ 60 Hz.
• Monitor Going to Sleep : Indicates the screen display is entering a sleep mode.
• Check Video Cable : Indicates a video input cable is not properly connected to the computer or monitor.
• OSD Lock-out : When the OSD is locked, the warning message OSD Lock displays for 10 seconds.
• No Input Signal : Indicates the monitor is not receiving a video signal from the computer on the monitor video input connector. Check whether the computer or input signal source is off or in the power-save mode.
• Auto Adjustment in Progress : Indicates the auto-adjustment function is active and in process.

Please see my profile for instruction, or try below, you should also download user manual from HP:

? OSD Lock —The OSD can be enabled or disabled by
pressing and holding the Menu button on the front panel for
10 seconds. If the OSD is locked, the warning message
“SD Lock”displays for 10 seconds.
?If the OSD is locked, press and hold the Menu button for
10 seconds to unlock the OSD.
?If the OSD is unlocked, press and hold the Menu button
for 10 seconds to lock the OSD.

May work the same on other HP model also.
User manual: http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=447388&
If you want to see the inside of your monitor, look here:
http://s807.photobucket.com/home/budm/allalbums

Does it do the same when you use this monitor with other PC, new VGA cable, just need to narrow down the problem first before start taking the monitor apart.
See pictures of what usually goes bad (mostly failed capacitors) with monitors:
http://s807.photobucket.com/home/budm/allalbums
Post back what you find so we can guide you further

the PC never turns off power to the monitor, it has its own power.
and sure, the monitors all do that 2004 to now. called VISA sleep.
modem has nothing to do with this.


Some monitors have this features called that.
its in your users manual. 2009m?
your page.
https://support.hp.com/us-en/product/hp-value-20-inch-displays/7274733/model/3884700/manuals

the words are clear.
it has power saver mode, turn that off
it has osd LOCK,
but no powerlock. as some do,. as your manual. shows.

page 24 shows.

http://h10032.www1.hp.com/ctg/Manual/c01725831

quote, power button does this.
turns the monitor on and to standby or sleep mode.NOTE:
The power button is located on the top or front of the monitor depending on the model
off , on, and sleep.
my guess you are putting the power button i Sleep mode
a feature of this monitor.

Sounds like your monitor is not processing the resolution signal from the graphics card. Reboot the computer in "safe mode with networking", from there you can play around with the resolution, start low resolution and work your way up to test the monitor.

Hold down the menu key on the monitor for 10 seconds. Should get rid of the lock.

My associate is an HP repair tech for 4 years.

Turn off the "powersaver" feature on your monitor by pressing <menu> then <management>then <powersaver> select off.