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-   -   How can i adjust brightness of a CRT with no physical controls on it? (http://www.linuxquestions.org/questions/linux-hardware-18/how-can-i-adjust-brightness-of-a-crt-with-no-physical-controls-on-it-779378/)

Stevithen 01-02-2010 04:38 AM

How can i adjust brightness of a CRT with no physical controls on it?
 
dont say xgamma, i need brightness/contrast not gamma

pixellany 01-02-2010 05:03 AM

1. Open it up and find some kind of internal control(s).

2. Get rid of it...... (Seriously, a computer display with no brightness or contrast adjustment is pretty lame. Besides, flat panels are now so good/cheap, why would you want a CRT?)

Stevithen 01-02-2010 04:19 PM

Quote:

Originally Posted by pixellany (Post 3811494)
1. Open it up and find some kind of internal control(s).

2. Get rid of it...... (Seriously, a computer display with no brightness or contrast adjustment is pretty lame. Besides, flat panels are now so good/cheap, why would you want a CRT?)

on iMacs and eMacs the CRTs are built in to the computer itself. The only way to adjust it is from OS X preferences, linux seems to have none yet it is possible to adjust brightness on laptops using the Fn key (desktops keyboards don't have this key). Without being able to adjust the brightness it is too bright to view without going blind. Linux appearently defaults to the highest possible brightness rendering it unusable for most pre-intel macs except laptops and powermacs that have external displays. This is probably an issue with all-in-one PC's also.


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