Does the VID:PID remain the same before/after the "mode switch"?

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https://bugs.launchpad.net/bugs/1720842

Title:
  USB Keyboard "Masione VMJ-02" ID 1c4f:0056 SiGma Micro: Ctrl / Super /
  Alt incorrectly recognized as L-Shift

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  It's a new keyboard and basically unusable due to the incorrect key
  recognition by usbhid module. I have scoured the net for similar
  problems, and found an identical sounding bug for an Azio keyboard. I
  tried that driver after modifying the source code to apply to
  1c4f:0056, but to no avail.

  See
  https://askubuntu.com/questions/648798/ctrl-and-alt-works-as-shift

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: linux-image-4.13.0-12-generic 4.13.0-12.13 [modified: 
boot/vmlinuz-4.13.0-12-generic]
  ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3
  Uname: Linux 4.13.0-12-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.7-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  peter      1368 F.... pulseaudio
   /dev/snd/controlC1:  peter      1368 F.... pulseaudio
   /dev/snd/controlC0:  peter      1368 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Oct  2 18:40:54 2017
  InstallationDate: Installed on 2017-10-01 (1 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Beta amd64 (20170930)
  MachineType: System manufacturer System Product Name
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-12-generic.efi.signed 
root=UUID=3f1207ff-f3cc-4230-961b-9f35ffd0da4c ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.13.0-12-generic N/A
   linux-backports-modules-4.13.0-12-generic  N/A
   linux-firmware                             1.168
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/17/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1505
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: P8H77-M PRO
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1505:bd10/17/2014:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8H77-MPRO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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