[Bug 1938983] Re: missing modules after 5.11.0-25-generic update

[MikeR]

found what seemed like the correctly named files, downloaded and placed them in /lib/firmware/i915/
Now update-initramfs runs with no errors, but when I plug in my USB rtl8188 wifi device 
1. No WiFi connection
2. various (e.g. firefox, wavemon) do not start, terminal locks and the only recourse is a reboot.

So I've definitely done  something wrong.
Any pointers would be gratefully accepted

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Title:
  missing modules after 5.11.0-25-generic update

Status in initramfs-tools package in Ubuntu:
  Confirmed

Bug description:
  After updating to kernel 5.11.0-25-generic wireless driver failed to recognize WiFi card.
  Possible reasons/symptoms:
  $ sudo update-initramfs -u -k all
  update-initramfs: Generating /boot/initrd.img-5.11.0-25-generic
  W: Possible missing firmware /lib/firmware/i915/skl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/bxt_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/glk_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/cml_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/icl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915
  W: Possible missing firmware /lib/firmware/i915/dg1_dmc_ver2_02.bin for module i915
  update-initramfs: Generating /boot/initrd.img-5.8.0-63-generic

  $ lsb_release -a
  LSB Version:	core-11.1.0ubuntu2-noarch:security-11.1.0ubuntu2-noarch
  Distributor ID:	Ubuntu
  Description:	July2021
  Release:	20.04
  Codename:	focal

  Workaround: connected Ethernet. (Inconvenient)

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