Problem with s3c24xx pwm driver
Russell King - ARM Linux
linux at arm.linux.org.uk
Thu Sep 24 16:34:37 EDT 2009
On Thu, Sep 24, 2009 at 05:33:24PM +0300, Vasily Khoruzhick wrote:
> Ok, I've found source of problem: it seems to be some issue with backlight
> LED driver (hardware, not software) with selected PWM clock. It seems that
> part of period with "1" is not long enought to charge capacitor, or something
> like this. PWM itself works fine.
Is it LED or is it CCFL? If it's CCFL, it needs to be 'struck' and then
you can reduce the intensity level - by going to max brightness when you
turn it on and then back the intensity down.
That's fairly normal for CCFL stuff.
More information about the linux-arm-kernel
mailing list