RE: rtw88: Guaranteed system freeze with RTL8821CE with RFE 2 type

[Pkshih <pkshih@realtek.com>]

> -----Original Message-----
> From: rtl8821cerfe2 <rtl8821cerfe2@protonmail.com>
> Sent: Thursday, November 18, 2021 2:48 AM
> To: Larry Finger <Larry.Finger@lwfinger.net>; linux-wireless@vger.kernel.org
> Subject: Re: rtw88: Guaranteed system freeze with RTL8821CE with RFE 2 type
> 
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> 
> On Monday, June 7th, 2021 at 12:29 PM, rtl8821cerfe2 <rtl8821cerfe2@protonmail.com> wrote:
> 
> > On Monday, June 7, 2021 5:40 AM, Larry Finger Larry.Finger@lwfinger.net wrote:
> >
> > > I just push a patch from Realtek with the following commit message:
> > > 8821CE with ASPM cannot work properly on Protempo Ltd L116HTN6SPW. Add a
> > > quirk to disable the cap.
> > > The reporter describes the symptom is that this module (driver) causes
> > > frequent freezes, randomly but usually within a few minutes of running
> > > (thus very soon after boot): screen display remains frozen, no response
> > > to either keyboard or mouse input. All I can do is to hold the power
> > > button to power off, then reboot.
> > > Please do a 'git pull' and try the new code. If you still have the problem, the
> > > quirk may need to be extended for your system. Please run the command:
> > > sudo dmidecode > dmidecode.txt
> > > Then post that .txt file.
> > > Larry
> >
> > That patch seems to do the same thing as the rtw_pci option disable_aspm=1. I tried that option, with
> and without disable_msi=1, and it didn't help.
> >
> > I'm attaching dmidecode.txt.
> 
> 
> Recently I saw the instructions from Ping-Ke Shih in this Ubuntu bug report:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808
> and realised I never powered off the laptop when I tested disable_aspm=1.
> I always rebooted.
> 
> So I added again "options rtw88_pci disable_aspm=1" in a file in /etc/modprobe.d/
> and powered off the laptop. It seems to work. It's been 11 days with no freeze now.
> 
> Here is my information for dmidecode again:
> System Information
> 	Manufacturer: HP
> 	Product Name: HP 250 G7 Notebook PC

Thanks for the report and update.
I will add a quirk to this platform.

--
Ping-Ke