Introduction

The target of this page is to collect platform information which could be a reference for the end-users.

Instructions

• Instruction to enroll MOK (Machine Owner Key) On Ubuntu for secure boot and dkms

• Instruction to enable Wake-on-LAN feature in Ubuntu 18.04 OEM image

Known generic issues

All issues related to the certified machines are tracked by oem-priority project

• LP: #1978757 Can't playback preview on Intel IPU6 camera platforms on 22.04

  • Ubuntu 22.04 includes gstreamer1.0-pipewire plugin to replace v4l2 gstreamer plugin.
  • There is an internal data error to retrieve pipewiresrc data for preview when running Cheese.

  • The Webcam Test is good, so applications utilize browser is still working.

• The MIPI camera with Intel IPU6/IPU6EP is an experimental feature that is not recommended for enterprise users for the reasons below:
  • The IPU6 kernel driver is out-of-tree, we prefer drivers that are maintained at upstream
  • Poor quality of camera performance: only 720p at 30fps
  • CPU performance is impacted by a daemon doing buffer copying for v4l2 loopback device.
  • Platforms: Latitude 9420,

• LP:#1889384 ASPM not enabled on child devices behind VMD controller

  • symptom: Intel TGL cpu can not get into package C10 sleep state in VMD mode.
  • impact: Power consumption is high during long idle and suspend to idle
  • workaround: set AHCI mode in BIOS instead.

• LP:#1890772 No signal on 4K 60Hz DisplayPort monitor by default, until "max bpc" is lowered to 8

  • symptom: compatibility issue across the connector, dongle, cable to monitor. User can workaround it by lower "max bpc" by a command to reduce the bandwidth requirement on 4K@60Hz.

  • DeepColourDepthSupportPlan

• LP: #1889539 System power cutoff unexpectedly when running unigine-heaven benchmark

  • symptom: System shutdown when Nvidia graphic is processing heavy loading. Nvidia driver not yet provide a cooling way when thermal on Nvidia graphic over temperature.

• LP: #1839309 "calling nvidia-smi in udev rule is a gap to the driver from Nvidia"

  • symptom: System fails to boot in performance mode.
  • impacted platforms: Precision 7730, Precision 7530, Precision 7540, Precision 7740 that with NVIDIA N18E series chips [10de:1bb5], [10de:1bb9] and [10de:1bbb].

• LP: #1857865 "storage created raid by BIOS can not be recognized in AHCI mode"

  • symptom: Raid disks on Windows edition machines can not be recognized on Ubuntu.

• LP: #1866156 "Wireless LAN RF is hardware blocked forever after r8153 ethernet connected."

  • symptom: If a user enables runtime PM for r8153 ethernet dongle, then wifi radio be hard blocked by BIOS.

• goodix fingerprint proprietary driver is supporting limited devices after Focal.

• LP: #1931061 "WiFi cannot find AP if scan for a while (Intel AX210)"

  • symptom 1: Go to wireless setup page and select "Connect to this network" and do nothing for 5-10 minutes, then the WiFi AP list disappeared.

  • symptom 2: Open Wi-Fi Settings to scan for 5-10 minutes, then the WiFi AP list disappeared.

• LP: #1843588 "Nautilus doesn't copy filenames for paste to other programs anymore"

  • symptom: Reverting the problematic commit will fix the usecase reported in this bug (and all applications where copying from Nautilus and pasting the data into a text-based input makes sense), but will break copying to/from Desktop Icons extension.

• LP: #1952981 "With 20.04d kernel and WX3200, unit freezes on resume"

  • symptom 1: With AMD WX3200 and 20.04d kernel, the unit freezes on resume with no error message logged.
  • symptom 2: With AMD R550/R540/RX640 and 20.04d kernel, the unit black screen after reboot; Would be fixed by adding amdgpu.aspm=0.

Knowledge Base

Platform Family

The family information can be found by $ ubuntu-report show or $ sudo dmidecode -t 1