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[Jon Packard <jonpackard@xxxxxxxxx>]

I just did a fresh install of Maverick 64-bit on my HP EliteBook 8440p
with NVS 3100m graphics. I still had to use "nomodeset" to install and
to boot thereafter, but that's not an issue. After installing the nVidia
proprietary drivers, I found that whenever my notebook tries to power
its screen off, it gets stuck as black and has to be restarted to fix.
The computer is still responsive, since I can ctrl-alt-del, enter, tab,
enter to poweroff. I have tried adding the [Option  "RegistryDwords"
"EnableBrightnessControl=1"] line to the device section of my xorg.conf
and rebooting, just as I did in Lucid. Unlike in Lucid, this did not
resolve my issue. My nvidia driver version is 260.19.06-0ubuntu1. Could
anyone please suggest any workarounds I could try? I can suspend just
fine, but I often like to shut my screen and let my notebook continue
working. Thank you in advance.

-- 
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in ubuntu.