This bug was fixed in the package linux - 5.19.0-15.15
---------------
linux (5.19.0-15.15) kinetic; urgency=medium
* kinetic/linux: 5.19.0-15.15 -proposed tracker (LP: #1983335)
* Miscellaneous Ubuntu changes
- [Config] update annotations to support both gcc-11 and gcc-12
-- Andrea Righi <[email protected]> Tue, 02 Aug 2022 09:23:01
+0200
** Changed in: linux (Ubuntu)
Status: Invalid => Fix Released
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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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