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Are you pressing the 'Fn' key (usually blue lettering) to the left of the space bar before trying the function key for brightness?
Laptop function keys are either set to function as regular function keys or as system specific function keys, like volume and brightness control, when the system starts up. When you hold the Fn key, it makes that key do 'the other' function. These settings can be changed in the BIOS, of EFI settings. Though changing them is easy, you may want a semi-tech-savy friend to help the first time.
No PC model stated
no OS stated (opr. system) windows 10?
we can not help you, ever lacking key facts
why not go to your HP support page and load all software
Related to Laserjet 3050
For ALL Panasonic Toughbook Models
and for all Operating Systems
(Win XP, Vista and Win'7):
To start in safe mode, press the "F8" function key
(located ABOVE the number 7) immediately and
repeatedly as soon as you power-ON your
Panasonic Toughbook model.
You will see three choices in a text-only Windows:
Safe Mode (without networking)
Safe Mode with networking (my regular choice)
Safe Mode with Command Prompt
Use the UP or Down Arrow Keys to HighLight
the selction and then press Enter to choose.
That is it!
Good Luck,
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989
7 8 9 = 7 8 9 u i o = 4 5 6 j k l = 1 2 3 0 . = m .
Look for the NUM LOCK key on your keyboard.
Typically, you press the FN key (lower left corner) and the NUM LOCK key (typically towards the upper right) together to put the keyboard back into regular mode.
it sounds like you have turned on either your language bar settings and sometimes switch to another language, there is a function key you are hitting causing the keys to lock on that setting
There should be a function key that is a light blue on the lower left. Hold that down and hit the NUM lock key at the upper right.
What happened is that you turned the numlock on just like on a regular keyboard but on a laptop, its a secondary function key where the letters double as numbers when the function numlock is turned on.
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