Public bug reported:
Tracing this back, I found the current Ubuntu 5.11 kernel has incorrect
offsets for some platforms (TGL-H and ADL). I created an upstream bug at
https://gitlab.freedesktop.org/drm/intel/-/issues/3662 and was directed
to a commit, 5d0c938ec9cc, that ought to fix this issue. See the
attached patch file for this commit applied to the current Ubuntu 5.11
kernel.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Patch added: "i915-load-dram-from-pcode.patch"
https://bugs.launchpad.net/bugs/1933274/+attachment/5506308/+files/i915-load-dram-from-pcode.patch
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https://bugs.launchpad.net/bugs/1933274
Title:
TGL-H skl_dram_get_dimm_info crashes with "Missing case (val ==
65535)"
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