Symptoms

Because this scenario affects overall driver function, drivers may return various error messages, including messages about internal errors or hardware failure. For example:

The device could not be calibrated.
Status Code: -50152
A hardware failure has occurred. The operation could note be completed as specified.

Affected Distributions and Kernels

This issue has been reproduced on the following systems:

• Ubuntu 22.04.04 HWE (kernel 6.8.0-40-generic)
• Ubuntu 24.04.01 (kernel 6.8.0-40-generic)

You can check the kernel version using the command: uname -r

Confirming the Problem

Use one of the following two methods to identify whether the PC has this issue.

• Look for PTE Read access is not set kernel messages in the system journal:
  1. Open a new Terminal window.
  2. Enter the following command:

     journalctl -k | grep -i NO_PASID

  3. Look for journal entries similar to this example:

     Sep 09 14:00:10 my_test_machine kernel: DMAR: [DMA Read NO_PASID] Request device 
     [03:00.0] fault addr 0x1166b8000 [fault reason 0x06] PTE Read access is not set

  4. Correlate the timestamp to a previous failure.

  To check if similar errors occurred before the last restart, enter the following command instead:

  journalctl | grep -i NO_PASID

• Look for a kernel message specifying that the IOMMU default domain type is set to Translated:
  1. Open a new Terminal window.
  2. Enter the command:

     journalctl -k | grep -i IOMMU

  3. Look for journal entries similar to this example:

     [ 0.262686] iommu: Default domain type: Translated

Solution

The recommended solution is to configure the IOMMU default domain type to Passthrough mode using the following steps.

The following procedure does not include steps for creating a copy of the GRUB configuration file. Create a backup copy of the existing configuration file before you modify the configuration. Read the complete process before you begin.

1. Edit the GRUB configuration file:
   1. Open a Terminal window.
   2. At the Command Prompt, enter the following command to open the file in the VI editor:

      sudo vi /etc/default/grub

   3. Enter the user password if prompted.
   4. Move the cursor to the line specifying the variable.

      GRUB_CMDLINE_LINUX_DEFAULT

   5. Press the <i> key to put the VI editor into insert mode.
   6. Add the command “ iommu=pt”.

      For example: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash iommu=pt"

      Note Do not modify or delete the existing variable definition text. Add the command at the position shown in the preceding example.
   7. Press the <Esc> key to return the VI editor to command mode.
   8. Save the GRUB configuration file and exit the VI editor using the command :wq
2. In the Terminal window, enter the following command to regenerate the GRUB configuration file:

   sudo update-grub

3. Restart the system.
4. Verify that the GRUB configuration has been properly updated and that the IOMMU default domain type is configured to pass-through mode.
   1. Open a new Terminal window.
   2. Enter the command:

      journalctl -k | grep -i IOMMU

   3. Look for journal entries similar to this example:

      [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.8.0-41-generic root=UUID=d27287cc-623b-4c29-93ec-23a5eb00177a ro quiet splash iommu=pt vt.handoff=7 
      ...
      [ 0.261029] iommu: Default domain type: Passthrough (set via kernel command line)