Bump. Just want to make sure this has been seen. Can a Dell representative confirm that a fix is in the works?

Hrm, strange. Those packages at those versions are not listed in `dpkg -l`. I do have the Sputnik PPA in my sources, and earlier versions of the kamal16 files.

The one thing I have installed that's running at that version is linux-libc-dev.

Even though I have updated my sources several times, it doesn't see any updates. This is intermediate+ level debugging-- can you (or anyone else!) help me figure out what's happening?

Do you have these installed on your system anywhere?:

linux-headers-3.2.0-52-generic_3.2.0-52.78+kamal16~DellXPS_amd64.deb

linux-headers-3.2.0-52_3.2.0-52.78+kamal16~DellXPS_all.deb

linux-image-3.2.0-52-generic_3.2.0-52.78+kamal16~DellXPS_amd64.deb

These packages were uploaded to the sputnik ppa on the 26th and should supersede what you're running on your machine currently, as it looks to be a stock 12.04 kernel instead of the modified ones with all the backlight fixes.

Yep.  It does the same thing for me here...I just get the libc-dev package if I run an apt-get update and apt-get dist-upgrade.  

For now, you can get the latest ppa kernel by running this command:

"sudo apt-get install linux-image-3.2.0-52-generic linux-headers-3.2.0-52-generic linux-headers-3.2.0-52"

...then once you reboot your backlight should start working again.  I'll let the maintainer know what's going on with regard to packages from his PPA.  

Looks like it worked like a charm. Thank you!

Oops, this problem occurred due to an oversight on my part (I didn't upload a 3.2.0-51 kernel to the PPA but skipped straight to -52, not realizing that -52 was still pending in the the Ubuntu proposed archive).  I've just fixed that, so the regular update processes should be delivering the -52 kernel from the PPA by default now.

Thank you too, Kamal :)