** Description changed: I can't change backlight on Toshiba Satellite C650D with Ubuntu 12.04. It worked perfectly on 11.10. I tried booting with acpi_backlight=vendor kernel parameter, but no changes. Switched from radeon to fglrx, no change either. Battery life is poor with backlight on maximum plus it is giving me headaches in the evening. EDIT: Shutdown Laptop in the evening; next morning: Everything works. I don't know what has happened. No updates, no changes to the system (kernel parameters, conf-files,...). + + EDIT2: + + After kernel upgrade from 3.2.0-23 to 3.2.0-24 the issue occurred again. + I fixed it by blacklisting the kernel module toshiba_acpi. I thought + this module should improve support for my laptop... + + WORKAROUND: + + sudo vi /etc/modprobe.d/blacklist-toshiba.conf + Type in: + blacklist toshiba_acpi + Save and restart.
** Description changed: I can't change backlight on Toshiba Satellite C650D with Ubuntu 12.04. It worked perfectly on 11.10. I tried booting with acpi_backlight=vendor kernel parameter, but no changes. Switched from radeon to fglrx, no change either. Battery life is poor with backlight on maximum plus it is giving me headaches in the evening. EDIT: Shutdown Laptop in the evening; next morning: Everything works. I don't know what has happened. No updates, no changes to the system (kernel parameters, conf-files,...). EDIT2: After kernel upgrade from 3.2.0-23 to 3.2.0-24 the issue occurred again. I fixed it by blacklisting the kernel module toshiba_acpi. I thought - this module should improve support for my laptop... + this module should improve support for my laptop...I don't know which + package to blame, maybe acpi-support? WORKAROUND: sudo vi /etc/modprobe.d/blacklist-toshiba.conf Type in: blacklist toshiba_acpi Save and restart. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/988533 Title: change backlight on Toshiba Satellite doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/988533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
