Ingo Gerth, is this a new problem that occurs only in the more recent nvidia blobs, or does it also occur with older ones (say 304)? If the latter, since you have a Quadro 2000M, this bug should probably be marked as a duplicate of Bug #562005:
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer function while using proprietary drivers https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/562005 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1281019 Title: 10de:0dda [HP EliteBook 8560w] Brightness controls are not working nvidia-319 and nvidia-331 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1281019/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
