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Translation(s): none

Models covered
Latitude 5400

Sub-models (LIST OF MODEL REFERENCE NUMBER) options :
- UHD Graphics 620 (Whiskey Lake)
- Screen size 14"
- Cannon Point-LP CNVi [Wireless-AC]
- 500GB NVME

Overall Status

~-Legend :
= OK ; Unsupported(No Driver) ; = Error (Couldn't get it working); [?] Unknown, Not Test ; [-] Not-applicable
= Configuration Required; = Only works with a non-free driver and or firmware

Important Note

* Requires the non-free package iwlwifi for wifi/bluetooth

* System Configuration: In BIOS, change SATA Operation from "RAID On" to "AHCI". Without this change, Linux won't find the internal hard disk.

Configuration

Display

UHD Graphics 620 (Whiskey Lake)

Suggests non-free wifi for i915 video driver (but does NOT require it)

Touch screen works as a selecting device but doesn't appear (at least in KDE) to support being used as you might 'click and drag' on a tablet screen.

Audio

Cannon Point-LP High Definition Audio Controller

Works without changes.

Mouse

works without changes. Using

Power Management

Suspend works, hibernation untested

WiFi

Intel Cannon Point-LP CNVi [Wireless-AC]

Requires firmware

System Summary

lspci

00:00.0 Host bridge: Intel Corporation Device 3e34 (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (Whiskey Lake) (rev 02)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 0c)
00:08.0 System peripheral: Intel Corporation Skylake Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Point-LP Thermal Controller (rev 30)
00:14.0 USB controller: Intel Corporation Cannon Point-LP USB 3.1 xHCI Controller (rev 30)
00:14.2 RAM memory: Intel Corporation Cannon Point-LP Shared SRAM (rev 30)
00:14.3 Network controller: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] (rev 30)
00:15.0 Serial bus controller [0c80]: Intel Corporation Device 9de8 (rev 30)
00:15.1 Serial bus controller [0c80]: Intel Corporation Device 9de9 (rev 30)
00:16.0 Communication controller: Intel Corporation Cannon Point-LP MEI Controller (rev 30)
00:17.0 SATA controller: Intel Corporation Cannon Point-LP SATA Controller [AHCI Mode] (rev 30)
00:19.0 Serial bus controller [0c80]: Intel Corporation Device 9dc5 (rev 30)
00:1c.0 PCI bridge: Intel Corporation Device 9dbf (rev f0)
00:1d.0 PCI bridge: Intel Corporation Device 9db4 (rev f0)
00:1f.0 ISA bridge: Intel Corporation Cannon Point-LP LPC Controller (rev 30)
00:1f.3 Audio device: Intel Corporation Cannon Point-LP High Definition Audio Controller (rev 30)
00:1f.4 SMBus: Intel Corporation Cannon Point-LP SMBus Controller (rev 30)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Point-LP SPI Controller (rev 30)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (6) I219-V (rev 30)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
02:00.0 Non-Volatile memory controller: Micron Technology Inc Device 5410 (rev 01)

lsusb

lsusb -v | grep -E '\<(Bus|iProduct|bDeviceClass|bDeviceProtocol)' 2>/dev/null

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  bDeviceClass            9 Hub
  bDeviceProtocol         3 
  iProduct                2 
Bus 001 Device 002: ID 0bda:58fd Realtek Semiconductor Corp. 
  bDeviceClass          239 Miscellaneous Device
  bDeviceProtocol         1 Interface Association
  iProduct                1 
      (Bus Powered)
Couldn't open device, some information will be missing
Bus 001 Device 003: ID 8087:0aaa Intel Corp. 
  bDeviceClass          224 Wireless
  bDeviceProtocol         1 Bluetooth
  iProduct                0 
Couldn't open device, some information will be missing
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  bDeviceClass            9 Hub
  bDeviceProtocol         1 Single TT
  iProduct                2 

USB Host controllers entries (without OHCI, UHCI, EHCI) are removed too.

Quirks

For reasons not obvious to me bluetooth stopped working on upgrade to 10.10 and further upgrades did not result in bluetooth again despite live images of newer versions working fine. Wifi continued to work fine despite being handled by teh same driver and firmware packages. The problem was something OS related as bringing forward my home directory during a reinstall did not reintroduce the problem.

[643129.165510] Bluetooth: hci0: Bootloader revision 0.1 build 42 week 52 2015
[643129.166497] Bluetooth: hci0: Device revision is 2
[643129.166502] Bluetooth: hci0: Secure boot is enabled
[643129.166505] Bluetooth: hci0: OTP lock is enabled
[643129.166508] Bluetooth: hci0: API lock is enabled
[643129.166511] Bluetooth: hci0: Debug lock is disabled
[643129.166515] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[643129.180254] bluetooth hci0: firmware: direct-loading firmware intel/ibt-17-16-1.sfi
[643129.180266] Bluetooth: hci0: Found device firmware: intel/ibt-17-16-1.sfi
[643131.245051] Bluetooth: hci0: command 0xfc09 tx timeout
[643139.404749] Bluetooth: hci0: Failed to send firmware data (-110)
[643139.404811] Bluetooth: hci0: sending frame failed (-19)
[643139.404856] Bluetooth: hci0: Intel reset sent to retry FW download

The broken system was installed as 10.5 in August 2020 and upgraded through all point releases to 10.10 when BT stopped working. Upgrading to 11 RC2 did not resolve the issue but reinstalled 11 RC2 and restoring /home did resolve the lack of bluetooth.

Resources

Attachments

Some configuration files and sample outputs.

Other reports

Useful Links

Credits