@Kyle, I confirm this on my Dell XPS 13 also with the kamal8 kernel. (For reference, the same backlight patches went into the Ubuntu Quantal 3.5.0-15.22 kernel, so its surely broken the same way there).
@Daniel, are you saying that your brightness controls don't work at all (regardless of suspend/resume?). What machine exactly?
@Kyle, I confirm this on my Dell XPS 13 also with the kamal8 kernel. (For reference, the same backlight patches went into the Ubuntu Quantal 3.5.0-15.22 kernel, so its surely broken the same way there).
@Daniel, are you saying that your brightness controls don't work at all (regardless of suspend/resume?). What machine exactly?