Beijer Electronics (formerly QSI Corporation)
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A12 Panel; Brightness adjustment
http://www.qsiforums.com/viewtopic.php?f=6&t=4754
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Author:  kkwon [ Wed Jan 16, 2013 7:26 am ]
Post subject:  A12 Panel; Brightness adjustment

Hi,
We are using the A12 panel running Qlarity 2.63. The brightness is adjusted via the routine
setsystemsetting(SYS_BACKLIGHT, nBacklight, SYSACT_DONOW) where nBacklight is from 0 to 255.
With the zero setting it is still too bright. Is it possible to get the panel brightness lower than the
zero backlight setting issued using setsystemsetting? Or is this a hardware limitation?

Ken

Author:  Ron L. [ Wed Jan 16, 2013 9:46 am ]
Post subject:  Re: A12 Panel; Brightness adjustment

If you have a new enough operating system on the QTERM-A12, there is a registry setting you can change. To do this:

1. Press “Alt + F4” on a USB keyboard to exist to WinCE.
2. Run the program “RegEditCE.exe” under “/harddisk/bin”.

Update the registry.

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Backlight]
"EnableUltraDim"=dword:0

Set that to 1 and reboot should enable.

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