APPLIED[J]: [SRU] [I/J/Unstable/OEM-5.14] [PATCH 0/1] Workaround Realtek 8821CE freeze issue

Andrea Righi andrea.righi at canonical.com
Tue Jan 4 09:15:56 UTC 2022


On Wed, Dec 22, 2021 at 02:37:56PM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1927808
> 
> [Impact]
> Systems equipped with Realtek 8821CE randomly freeze.
> 
> [Fix]
> 8821CE seems to have trouble leaving ASPM L1, so do it manually to
> prevent it from dragging the entire system down.
> 
> [Test]
> After the patch is applied, there's no more freezing when system is
> under stress test, idle, or surfing the web.
> 
> [Wheres problems could occur]
> This approach will slightly increase power usage, so it's restricted to
> 8821CE on Intel based platform.

Applied to jammy:linux.

Thanks,
-Andrea



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