We've tested Meteor Lake (Family, Model, Stepping: 6, 170, 4), Lunar
Lake M (6, 189, 1), and Arrow Lake (6, 198, 2) systems after installing
thermald/noble-proposed (2.5.6-2ubuntu0.24.04.1), here are the results:
* All of the systems passed stress-ng, as none of them have shutdown by
tripping Tmax. Test command:
sudo STRESS_NG_CPU_TIME=600 checkbox-cli run
com.canonical.certification::stress/cpu_stress_ng_test
* None of the three systems have parsable /dev/acpi_thermal_rel, as
there are error messages saying:
failed to GET COUNT on /dev/acpi_thermal_rel
However, this message seems to be common on systems that do not define ACPI
thermal relationship tables.
* control devices order seems to be running according to
thermal-cpu-cdev-order.xml
* On Lunar Lake M, the newly patched INT3400 thermal driver base path is
working.
* None of our tested platforms showed Unsupported CPU.
** Tags removed: verification-needed verification-needed-noble
** Tags added: verification-done verification-done-noble
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https://bugs.launchpad.net/bugs/2087816
Title:
[SRU] patch thermald in noble to support Intel Lunar Lake and Arrow
Lake CPUs
Status in OEM Priority Project:
New
Status in thermald package in Ubuntu:
Fix Released
Status in thermald source package in Noble:
Fix Committed
Bug description:
[ Impact ]
* This is an update of thermald in noble to support Intel Core Ultra
Processors (Series 2), aka Lunar Lake and Arrow Lake
[ Test Plan ]
Pick each of the Raptor Lake, Lunar Lake, and Arrow Lake systems and
run the following tests:
1. Run stress-ng, and observe the temperature/frequency/power with s-tui
- Temperatures should stay just below trip values
- Power/performance profiles should stay roughly the same between old
thermald and new thermald (unless specifically expected eg: to fix
premature/insufficient throttling)
2. check if thermald could read rules from /dev/acpi_thermal_rel and generate
the xml file on /etc/thermald/ correctly.
- this depends on if acpi_thermal_rel exist.
- if the machine suppots acpi_thermal_rel, the "thermal-conf.xml.auto"
could be landed in etc/thermald/.
- if not, the user-defined xml could be created, then jump to (3).
- run thermald with --loglevel=debug, and compare the log with xml.auto
file. check if the configuration could be parsed correctly.
3. check if thermal-conf.xml and thermal-cpu-cdev-order.xml can be loaded
correctly.
- run thermald with --loglevel=debug, and compare the log with xml files.
- if parsed correctly, the configurations from XML files would appear in
the log.
[ Where problems could occur ]
* The above test failed, which means the support for Lunar Lake and
Arrow Lake are incomplete, or regression happened on the supported
units.
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