Comment 62 for bug 562005

I've removed all my X11 quirks and tested 304.60, the backlight controls seem to work. They're still really buggy, but no effort is needed to get them working. Packages meant for Ubuntu 12.04 arr available here: https://launchpad.net/~ubuntu-x-swat/+archive/x-updates?field.series_filter=precise . Please let me know if I was sloppy in testing this, but I think it's fixed.

Brendan Donegan: There are no show-stopping bugs with the open-source drivers, but there are some features that are unsupported, such as HDMI audio support, clocking adjustments, VDPAU support. Those last 2 have a significant impact on battery life, but the machine's still usable. The T510's certification makes sense to me, thanks for responding!