[conspire] On Intel Core i3 notebook, display brightness setting ignored

[roger at rogerchrisman.com]

sudo lshw, display section, for my notebook that is ignoring display
brightness settings is:

        *-display
             description: VGA compatible controller
             product: Core Processor Integrated Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci at 0000:00:02.0
             version: 02
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:44 memory:b0000000-b03fffff
memory:a0000000-afffffff ioport:3050(size=8)


Roger