2013-12-08 14:40, Alex Davis:
I have a Dell Inspiron N7010 Laptop with Intel graphics. When the dell-laptop module is loaded, two backlight device devices are created; dell_backlight, and intel_backlight from the Intel graphics driver. The dell_backlight device is non-functional, but the graphics subsystem uses it instead of the functioning intel_backlight device. The result is that, when running KDE, screen brightness cannot be controlled. I've added a module parameter, disable_backlight which, when true, will disable the dell_backlight device, and leave only the intel_backlight: with this, screen brightness can be controlled.
Hi, I think it would be better if we could figure out why the dell_blacklight device is not working rather than disabling it. Regarding your patch, it creates a memory leak as you: * allocate a platform device * you add it * you allocated a page for SMI Your if(disable_blacklight) code should go where it checks the DMI. -- Regards, Levente Kurusa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
