Backlight is not adjustable on HP 655 laptop

May be I have done the last step first. My apologize for this.

I have original reported

https://bugs.launchpad.net/linux/+bug/1054647

and than opened up

https://bugzilla.kernel.org/show_bug.cgi?id=48731

.
Following this guide

https://wiki.ubuntu.com/Bugs/Upstream/kernel

I should have send to this list first, before opening a ticket on bugzilla.kernel.org.

Well, sorry.

I have done my best to bring the reports in a good enough style.

Should there be missed some information, please tell me.