14.04 LTS on Toshiba Satellite C75D-B. Brightness, WiFi, Fn-keys control and Suspend problems

Question

This is a new laptop that I just bought. Came with Windows 8.1, now is a dual-boot. Sound Controls and Mute work with F9, F10, F11 like they do in Windows, but F12 for WiFi, F2 and F3 for brightness do not work. F5 brings up Display control, and F2 brings-up the Power Manager instead of taking Brightness Lower. F3 does nothing.

I also have Brightness control added to the panel, moving mouse up and down does not change screen brightness.

It also does not recover from Suspend. Am I missing a Toshiba-specific configuration? Synaptic package manager shows toshset and acpi-support packages installed from the distribution.

Answer 1

This kernel patch is needed to fix acpi keys on C75D-B

*** drivers/platform/x86/toshiba_acpi.c 2015-02-08 20:54:22.000000000 -0600
--- drivers/platform/x86/toshiba_acpi.c.fixed   2016-01-2013:32:56.623965574 -0600
*************** static const struct dmi_system_id toshib
*** 247,252 ****
--- 247,258 ----
        DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A50-A"),
    },
},
+   {
+       .matches = {
+           DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+           DMI_MATCH(DMI_PRODUCT_NAME, "Satellite C75D-B"),
+       }
+   },
{}
};

I have tested this on my Satellite C75D-B7360 and it works! If you are familiar with kernel building this should be a simple matter to patch the file and rebuild toshiba_acpi.ko.