The buttons on the front panel of the monitor are "locked" so I can not adjust the brightness, resolution, etc of the screen

There should be a menu button on the front of this screen, in this menu you will be able to adjust the settings for your monitor, brightness, contrast, size etc...
If you would like to adjust the resolution; right click on the desktop and select Properties.
Select the settings tab and slide the resolution bar to the right to increase the resolution or to the left to decrease the resolution.

damnor01

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 OSD Lock displays for ten 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.



OSD stands for "On Screen Display." It is an onscreen configuration menu included with various monitors. When you press the MENU button or one of the other buttons on the front or side of a monitor, the onscreen display may appear. The OSD typically includes monitor calibration options, such as brightness, contrast, and color adjustments. Some OSDs may also include horizontal and vertical position controls as well as tilt and keystone adjustments.
If you can't make adjustments to the monitor settings using the OSD interface, the onscreen display may be locked. You may also see the phrase "OSD Locked" appear when you try to change the settings. Some monitors include an option within the menu called "OSD Lock", which you can turn on or off. If this option is available, simply turn OSD Lock off and you will be able to make adjustments to the settings.
If your monitor does not include the "OSD Lock" option, you may be able to unlock the OSD by pressing and holding the MENU button on the front or side of the monitor for several seconds. If you try this method, be patient! It may take up to 15 seconds for the OSD to unlock.


VOTE ME

http://support.dell.com/support/edocs/monitors/S1709W/en/ug/operate.htm#Using the Front Panel
NOTE: You can also lock or unlock the OSD by pushing and holding thebutton for 15 seconds. (Top of the buttons on right side)

Here are the instructions for a E193FP

http://support.dell.com/support/edocs/monitors/E193FP/En/controls.htm

This is because your screen is not compatible with any resoultion past 1280 x 1024. Look at your screen's specifications here: http://downloadcenter.samsung.com/content/UM/200602/20060210090838125_BN59-00521A-01Eng.pdf (Page 76 listed as Maximum resolution)

If you want to go past that, you must purchase and/or use a different monitor. Just be sure to look at the Maximum Resolutions BEFORE you purchase a new monitor!

the vga mode not suppopt is on and not working

try this option press hold menu en arrow button to adjust setting en fix it for your best display set your resolution on 1024x768 60hz after that disable osd by removing resistor located on crt board loc# r117 tnx and good day.

Alter your gamma,brightness,contrast,etc with your grapics card settings,

Brightness is adjusted by using the 2 buttons on the left side of the front.

See instructions here:
http://support.dell.com/support/edocs/monitors/m782/En/controls.htm

hi there, your switch botton is failling, manual buttons on the front to adjust controls, do some switch test, replace micro botton switch. ty