Comment 80 for bug 1735594

The proposed fix works on my machine. Thanks.

Ubuntu 16.04; Processor: Intel® Core™ i5 CPU M 540 @ 2.53GHz × 4; Graphics: Intel® Ironlake Mobile

description: Laptop
    product: Latitude E4310
    vendor: Dell Inc.
    version: 0001
    serial: G4N8XN1
    width: 64 bits
    capabilities: smbios-2.6 dmi-2.6 vsyscall32
    configuration: boot=normal chassis=laptop uuid=44454C4C-3400-104E-8038-C7C04F584E31
  *-core
       description: Motherboard
       product: 012JJ4
       vendor: Dell Inc.
       physical id: 0
       version: A01
     *-firmware
          description: BIOS
          vendor: Dell Inc.
          physical id: 0
          version: A15
          date: 05/12/2017
          size: 64KiB
          capacity: 960KiB
*-display
             description: VGA compatible controller
             product: Core Processor Integrated Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@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