[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1918065
Title:
Zen 3 (Ryzen 5XXX) temperatures not reported by k10temp
Status in linux package in Ubuntu:
Expired
Bug description:
Current reports from `sensors` for Zen 3 CPUs:
```
PCH_CHIP_CPU_MAX_TEMP: +0.0°C
PCH_CHIP_TEMP: +0.0°C
PCH_CPU_TEMP: +0.0°C
```
This bug is due to the lack of Zen 3 support in Ubuntu's
implementation of k10temp.
Zen 3 (Ryzen 5XXX) temperature support is now ready as a part of
`k10temp`: https://www.kernel.org/doc/html/latest/hwmon/k10temp.html
and narrowly missed the window for mainline kernel 5.12. My
understanding is it was included in 5.10, removed in 5.11 for
documentation/validation reasons, then planned again after updates.
With the popularity of these chips increasing, having accurate CPU
temp readings is of import in Ubuntu 20.04, as this is an LTS release
with support until 2025. Therefore, as we are set at kernel 5.8 at the
moment, with 21.04 releasing with kernel 5.11, it may be worth pulling
in the latest k10temp to fix this bug as to not delay access to vital
CPU information throughout 2020.
Thanks.
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