** Description changed:

  The laptop shipped with Lenovo's 6.5.0-1019-oem, but upon upgrades
  switched to 6.8.0-47-generic which is generally preferred because
  6.5-oem is no longer seeing updates.
  
- However, there is a regression that Fn+D Lenovo Privacy Guard does not
+ However, there is a problem that Fn+D Lenovo Privacy Guard does not
  switch correctly on. Instead, it only briefly flashed on and immediately
  back off, with "Privacy screen enabled" followed immediately by "Privacy
  screen disabled" at the bottom of the screen.
  
  This bug used to indicate it's clearly a kernel regression, but it may
  be also a regression in some other component. I've added mutter since
  it's the compositor and also has the "Privacy screen enabled/disabled"
  string, but downgrading that to 42.9-0ubuntu7 the machine shipped with
  according to /var/log/apt/term.log did not help.
  
  ## Test Case
  
  Laptop model: Lenovo Thinkpad T14s Gen 5 (Intel) with vendor support
  Ubuntu 22.04 LTS (oem-sutton-carr-meta)
  
  1. Boot to desktop, check that Fn+D is functional both to turn the feature on 
and off
  2. Attach external display, and try again.
  3. Detach external display, try again.
  4. Reboot, and try again.
  
  ## Expected Behavior
  
  Fn+D works as intended in all cases. This is how it worked as the laptop
  shipped, with 6.5.0-1019-oem as the kernel.
  
  ## Actual Behavior
  
  Fn+D only results in a "flashing" Privacy Guard being activated but
  immediately deactivated, so that it does not stay on.
  
  ---
- Bug description updated to reflect I can no longer find a way for it to 
behave correctly, but it did behave correctly in the configuration it shipped 
in, after which only offered upgrades have been done.
+ Bug description updated several times because it behaves differently when 
using Fn+D vs UI, and because while it seemed kernel upgrade was to blame, it 
seems going back to the original kernel and mutter does not automatically help 
if the problem is happening.
+ 
+ The most likely explanation is that initial setup of bits here and there
+ is not correct for the case where only Fn+D shortcut key is tried to be
+ used to control privacy screen. Additionally, attaching / detaching
+ external display may affect the situation somehow too.
  
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  secto10    1765 F.... pulseaudio
   /dev/snd/controlC1:  secto10    1765 F.... pulseaudio
  CRDA: N/A
  CasperMD5CheckMismatches: ./.disk/casper-uuid-oem ./boot/grub/efi.img 
./boot/grub/grub.cfg ./casper/initrd
  CasperMD5CheckResult: fail
  CurrentDesktop: ubuntu:GNOME
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-sutton-jammy-amd64-20240409-800
  DistroRelease: Ubuntu 22.04
  InstallationDate: Installed on 2024-04-23 (180 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - 
pc-sutton-jammy-amd64-20240409-800
  MachineType: LENOVO 21LSCTO1WW
  Package: linux-hwe-6.8
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-47-generic 
root=UUID=cd7231e8-b1db-45c4-aaa0-e396d0ff90b7 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 6.8.0-47.47~22.04.1-generic 6.8.12
  RelatedPackageVersions:
   linux-restricted-modules-6.8.0-47-generic N/A
   linux-backports-modules-6.8.0-47-generic  N/A
   linux-firmware                            20220329.git681281e4-0ubuntu3.34
  Tags:  jammy wayland-session
  Uname: Linux 6.8.0-47-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 08/07/2024
  dmi.bios.release: 1.7
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N46ET17W (1.07 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 21LSCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.4
  dmi.modalias: 
dmi:bvnLENOVO:bvrN46ET17W(1.07):bd08/07/2024:br1.7:efr1.4:svnLENOVO:pn21LSCTO1WW:pvrThinkPadT14sGen5:rvnLENOVO:rn21LSCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21LS_BU_Think_FM_ThinkPadT14sGen5:
  dmi.product.family: ThinkPad T14s Gen 5
  dmi.product.name: 21LSCTO1WW
  dmi.product.sku: LENOVO_MT_21LS_BU_Think_FM_ThinkPad T14s Gen 5
  dmi.product.version: ThinkPad T14s Gen 5
  dmi.sys.vendor: LENOVO

-- 
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https://bugs.launchpad.net/bugs/2085119

Title:
  Ubuntu 22.04 LTS OEM installation - Lenovo privacy guard does not work
  with keyboard shortcut (flashes on and then off)

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