The rtw88 is rewritten from out of tree driver, so ideally they should
be the same.
Have you tried the out of tree driver on this platform? Does it work
well?
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Reply #66
> So the L0s is fine to be up in LNKCTL?
As I know, L0s is a single direction function.
I mean rtl8821ce can decide to enter L0s or not; don't need peer support this
simultaneously.
> what's the possible difference between rtw88 and the old rtl8821ce
What do you mean about the "old
By default, 8821ce doesn't not enter L0s.
Do you have any finding about this?
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Title:
rtw88_8821ce causes freeze
Status
> I put the laptop to sleep
> I use the sleep button from the GUI and it works well
I guess these two sleep methods are different.
Maybe, you can try to change the behavior of laptop automatic sleep.
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> add the options `rtw_pci disable_aspm=1` and `rtw_pci disable_msi=1`
but they didn't help.
Please confirm the module parameters by
/sys/module/rtw88_pci/parameters/ if they are set properly.
> kernel boot parameters `pcie_aspm.policy=performance`
Since your CPU is AMD, please also add
I have sent the patch to upstream:
https://lore.kernel.org/linux-wireless/20210607012254.6306-1-pks...@realtek.com/T/#u
I add your description of this bug in the commit message. If there is anything
wrong,
please let me know.
About the warnings "timed out to flush queue 2", my colleague told
For #28.
Thank you, Kai-Heng.
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Title:
rtw88_8821ce causes freeze
Status in linux package in Ubuntu:
Confirmed
Bug description:
Please do below step-by-step:
1. install compiler
$ sudo apt install build-essential
2. untar attached driver into any place you want
$ tar zxvf rtw88_.tar.gz
3. enter the folder
4. compiler driver
$ make -f Makefile-rtw88 -j8
5. remove module
$ sudo rmmod rtw88_8821ce rtw88_8821c
Could you tell me your version of Ubuntu kernel by 'uname -a'?
I can send you a tarball of rtw88 driver with my patch, and then you can only
build the driver as long as you have kernel header and essential build tools.
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Please try attached patch, and see if it works.
Note. Don't apply kernel command, and remove /etc/modprobe.d/rtw88_pci.conf
Without a 8821CE, I can't diagnose the symptom, so I contact my colleague to
check if we can reproduce this symptom. If any update, I'll let you know.
** Patch added:
The first message, "rtw_8821ce :04:00.0: timed out to flush queue
2", means the buffered data isn't transmitted properly. I think this
isn't a big deal.
The second message, "rtw_8821ce :04:00.0: firmware failed to leave lps
state", means firmware doesn't respond the request of leaving
My propose method is to fix ASPM issue by driver instead.
So, don't apply "pcie_aspm=force pcie_aspm.policy=performance" to kernel
parameter, but
add a file /etc/modprobe.d/rtw88_pci.conf with below content
options rtw88_pci disable_aspm=1
(Sorry, disable_aspm=0 in #17 is typo)
Then,
Could you please try disable_aspm=0 when loading rtw88_pci.ko?
If it works, we may add a quirk in driver by vendor and product name.
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