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!
** Changed in: ubuntu-certification
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/562005
Title:
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs
no longer function while using proprietary drivers
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