This bug is awaiting verification that the linux-
bluefield/5.15.0-1040.42 kernel in -proposed solves the problem. Please
test the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-jammy-linux-bluefield' to
'verification-done-jammy-linux-bluefield'. If the problem still exists,
change the tag 'verification-needed-jammy-linux-bluefield' to
'verification-failed-jammy-linux-bluefield'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-bluefield-v2 
verification-needed-jammy-linux-bluefield

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https://bugs.launchpad.net/bugs/1971699

Title:
  disable Intel DMA remapping by default

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Jammy:
  Fix Released

Bug description:
  [Impact]

  It seems that enabling Intel IOMMU can cause some weird gfx problems, see for 
example:
      
   https://bugs.launchpad.net/bugs/1971146
   https://bugs.launchpad.net/bugs/1965882

  [Test case]

  We don't have any specific test case, only other bug reports that
  tracked down the origin of the issue as being introduced when
  CONFIG_INTEL_IOMMU_DEFAULT_ON has been enabled by default.

  [Fix]

  Revert "UBUNTU: [Config] enable Intel DMA remapping options by
  default"

  [Regression potential]

  DMA remapping device not present at boot by default, users that
  require this feature will need to specifically add intel_iommu=on to
  the kernel boot parameters to enable it.

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