This bug was fixed in the package linux-oem - 4.15.0-1059.68

---------------
linux-oem (4.15.0-1059.68) bionic; urgency=medium

  * bionic/linux-oem: 4.15.0-1059.68 -proposed tracker (LP: #1847801)

  * Fix non-working Realtek USB ethernet after system resume (LP: #1847063)
    - r8152: remove extra action copying ethernet address
    - r8152: Refresh MAC address during USBDEVFS_RESET
    - r8152: Set macpassthru in reset_resume callback

  * [CML-U] Comet lake platform need ISH driver support (LP: #1843775)
    - HID: intel-ish-hid: Add Comet Lake PCI device ID

  * [SRU][OEM-B]UBUNTU: SAUCE: enable adjusting brightness on some samsung OLED
    panels (LP: #1844798)
    - SAUCE: i915: intel_dp_aux_backlight: Fix max backlight calculations
    - SAUCE: drm/i915: customize DPCD brightness control for specific panel

 -- Timo Aaltonen <timo.aalto...@canonical.com>  Fri, 11 Oct 2019
20:54:45 +0300

** Changed in: linux-oem (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1846453

Title:
  Microphone-Mute keyboard LED is always on/off on Dell Latitude 3310

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Invalid
Status in linux-oem package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Fix Committed
Status in linux-oem source package in Bionic:
  Fix Released

Bug description:
  [SRU Justification]

  [Impact]
  Micphone-mute LED indicator on Dell Latitude 3310 keyboard may always
  shown as on or off.

  [Fix]
  * fe486138788ba4 [1]: dell-laptop: Add 2-in-1 devices to the DMI whitelist
  * c8ba9db2a790c0 [2]: dell-laptop: Removed duplicates in DMI whitelist

  [Test Case]
  Verified on Dell Latitude 3310.

  [Regression Risk]
  Low. The two target patch was landed to v4.16 and is already in
  production use for a long time. Besides, this changeset only addes new
  IDs (and remove duplicated ones), so it doesn't affect existing systems
  but fix those affected ones.

  ========= Original Description =========

  This device has unsupported DMI Chassis Type:

    $ sudo dmidecode | grep -A2 -B1 ^Chassis
    Handle 0x0003, DMI type 3, 22 bytes
    Chassis Information
            Manufacturer: Dell Inc.
            Type: Convertible

  So we need to SRU:
  * fe486138788ba4 [1]: dell-laptop: Add 2-in-1 devices to the DMI whitelist
  * c8ba9db2a790c0 [2]: dell-laptop: Removed duplicates in DMI whitelist

  This should only affect 4.15 kernel as they have been landed to v4.16.

  system-manufacturer: Dell Inc.
  system-product-name: Latitude 3310
  bios-version: 0.1.9
  CPU: Intel(R) Pentium(R) CPU 5405U @ 2.30GHz (4x)
  GPU: 00:02.0 VGA compatible controller [0300]: Intel Corporation Device 
[8086:3ea1] (rev 02)
  kernel-version: 4.15.0-1047-oem

  [1]: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fe486138788ba435ffa918c8d7aba05a77b6289a
  [2]: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8ba9db2a790c0fcf2f6c4cafd45ff3a0751800e

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