This bug was fixed in the package linux-oem-5.6 - 5.6.0-1035.37
---------------
linux-oem-5.6 (5.6.0-1035.37) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1035.37 -proposed tracker (LP: #1903149)
* Packaging resync (LP: #1786013)
- update dkms package versions
* drm/i915/dp_mst - wait longer during the clock recovery for Display port
(LP: #1902861)
- SAUCE: drm/i915/dp_mst: wait longer during the clock recovery
* Remove NVMe suspend-to-idle workaround (LP: #1897227)
- Revert "UBUTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3"
- Revert "UBUNTU: SAUCE: pci: prevent sk hynix nvme from entering D3"
* Tiger Lake PMC core driver fixes (LP: #1899883)
- x86/devicetable: Move x86 specific macro out of generic code
- x86/cpu: Add consistent CPU match macros
- platform/x86: Convert to new CPU match macros
- platform/x86: intel_pmc_core: Add Atom based Jasper Lake (JSL) platform
support
- platform/x86: intel_pmc_core: Add debugfs entry to access sub-state
residencies
- platform/x86: intel_pmc_core: Add debugfs entry for low power mode status
registers
- platform/x86: intel_pmc_core: Refactor the driver by removing redundant
code
- platform/x86: intel_pmc_core: Remove slp_s0 attributes from tgl_reg_map
- platform/x86: intel_pmc_core: Add an additional parameter to
pmc_core_lpm_display()
- platform/x86: intel_pmc_core: Dump low power status registers on an S0ix.y
failure
- platform/x86: intel_pmc_core: Add debugfs support to access live status
registers
- platform/x86: intel_pmc_core: Relocate pmc_core_*_display() to outside of
CONFIG_DEBUG_FS
- platform/x86: intel_pmc_core: Remove duplicate 'if' to create debugfs
entry
- platform/x86: intel_pmc_core: Add slp_s0_offset attribute back to
tgl_reg_map
- platform/x86: intel_pmc_core: Make pmc_core_lpm_display() generic for
platforms that support sub-states
- platform/x86: intel_pmc_core: Make pmc_core_substate_res_show() generic
- platform/x86: intel_pmc_core: Change Jasper Lake S0ix debug reg map back
to
ICL
- platform/x86: intel_pmc_core: avoid unused-function warnings
- platform/x86: intel_pmc_core: update TGL's LPM0 reg bit map name
- platform/x86: intel_pmc_core: fix bound check in pmc_core_mphy_pg_show()
- platform/x86: pmc_core: Use descriptive names for LPM registers
- platform/x86: intel_pmc_core: Fix TigerLake power gating status map
- platform/x86: intel_pmc_core: Fix the slp_s0 counter displayed value
* [SRU][OEM-5.6]Fix no video out from some monitors on amdgpu (LP: #1901135)
- drm/amd/display: Retry AUX write when fail occurs
* drm/i915/dp_mst - only read the base capability in DPCD. (LP: #1902613)
- Revert "UBUNTU: SAUCE: drm/dp_mst: Retrieve extended DPCD caps for
topology
manager"
* TGL system automatically resumes from s2idle when connecting to a docking
station with a monitor (LP: #1902577)
- SAUCE: ACPI: avoid auto-wakeup with an _OSI string
* Fix non-working NVMe after S3 (LP: #1895718)
- SAUCE: PCI: Enable ACS quirk on all CML root ports
* drm/i915/dp_mst - System would hang during the boot up. (LP: #1902469)
- drm/i915: Fix encoder lookup during PSR atomic check
* kci_test_encap_fou() in rtnetlink.sh from kselftests/net failed with "FAIL:
can't add fou port 7777, skipping test" (LP: #1891421)
- selftests: rtnetlink: load fou module for kci_test_encap_fou() test
* alsa/hda: mic can't be detect if booting with headset plugged on a HP
machine (LP: #1901971)
- SAUCE: ALSA: hda/realtek - Fixed HP headset Mic can't be detected
-- Timo Aaltonen <timo.aalto...@canonical.com> Wed, 11 Nov 2020
14:40:51 +0200
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: Fix Committed => Fix Released
** Changed in: linux (Ubuntu Groovy)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-4788
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https://bugs.launchpad.net/bugs/1899883
Title:
Tiger Lake PMC core driver fixes
Status in linux package in Ubuntu:
Invalid
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
Bug description:
[Impact]
The power gating status is not correct and the slp_s0 value is not correct on
Intel TigerLake platform.
The slp_s0 value is essential for our tools to confirm whether the
system enters deep sleep,
and the power gating is critical for another tool to check which
device is still running when the system is suspended.
Both are not that useful for a normal user, but useful for developers
to debug power consumption issues.
[Fix]
The patchset in
https://lore.kernel.org/lkml/20201006224702.12697-1-david.e....@linux.intel.com/
provides several critical fixes for intel_pmc_core driver.
[Test]
Verified on some TigerLake platforms
[Regression Potential]
Low, the fix for status bits map and the slp_s0 calculation are simple and
clear, should have low impact on regression.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1899883/+subscriptions
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