Sorry, thought I already replied: No, nvidia's bug reporting system sucks. It doesn't even use HTTPS for login and they don't seem to pay attention to Linux bugs. Someone like an OEM or big developer will need to pick this up if it's going to be fixed, I think.
** Tags added: t420 t520 w520 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. 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 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
