I've tried that in the past with no success. It's worth noting that toshset uses a different kernel module than the Ubuntu installer sets up by default. By default, I have the toshiba_acpi.ki module loaded. I've built and installed the correct module for toshset, but it didn't seem to work any better. And I'm hazy enough on how to the low-level acpi kernel parts work together that I wasn't sure if there was some conflict -- there sure are a lot of files throughout /sys and /proc that seem to control the screen brightness before the sleep/resume cycle that fail after the sleep/resume cycle. >From reading the webpage from the author of toshset (http://schwieters.org/toshset/), I'm left with the distinct impression that it was obsolete long before my Toshiba R835-P56x was on the drawing board.
Also, upgrading my R835-P56x to version 3.5 of the system BIOS didn't have any effect. I'd love to delve in to the kernel and fix this myself (I'm programming literate and I've touched read/modified kernel code before), but I can't find the right background reading that describes what I need to know about ACPI in general (the kernel/OS view), Linux's ACPI infrastructure, and Toshiba's ACPI. If someone could point me to the right direction, I'd be happy to give it a go and contribute any code that I come up with. Alas, I don't know where to start and I'm a busy guy so I can't just stare at it until it works, the way I could back when I was a student with nothing but time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/832483 Title: Toshiba R835-P56X - screen brightness control does not work after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/832483/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
