APPLIED[Unstable]: [PATCH 0/1][SRU][F][G][Unstable][OEM-5.6] rtwpci driver blocks the system to enter PC10, stuck at PC3

Seth Forshee seth.forshee at canonical.com
Fri Dec 18 23:11:34 UTC 2020


On Tue, Dec 08, 2020 at 04:34:01PM +0800, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1907200
> 
> [Impact]
> The deepest CPU package C-state is PC3 after rtwpci module is loaded.
> 
> [Fix]
> The fix is from Realtek.
> They will upstream this fix with some other fixes later.
> 
> [Test]
> Verified on RTL8723DE [10ec:d723] wifi card, and it enters PC10 during
> long idle.
> 
> [Where problems could occur]
> The fix is pretty simple and small, and just increases the idle/active
> latency value. Nothing could went wrong in this case.

Applied to unstable/master, thanks!



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