On 4/5/22 06:39, G. P. B. wrote:
On Mon, 4 Apr 2022 at 15:49, Larry Finger <Larry.Finger@xxxxxxxxxxxx
<mailto:Larry.Finger@xxxxxxxxxxxx>> wrote:
George,
I do not know of any regression in 5.16 with regard to the driver for
RTL8822CE.
Certainly, I saw no regressions in my testing of that driver from before it was
in the kernel up to the present. That said, I can only comment on the
user-space
part of openSUSE Tumbleweed, which is probably not your distro of choice.
Are you using the drivers at https://GitHub.com/lwfinger/rtw88.git
<https://GitHub.com/lwfinger/rtw88.git> rather than
the ones in the kernel? Your posted errors that refer to rtw_8822ce indicate
that to be true. If the drivers came from the kernel, the reference would be to
rtw88_8822ce! If so, do a 'git pull' to get the drivers updated to match the
code in kernel 5.18. A lot of things have been fixed.
In your system, please do a 'lsmod | grep rtw'. If any items refer to rtw88_*,
you have mixed drivers loaded. In that case, you should blacklist the rtw88_*
driver.
Larry
I haven't had time to rollback to 5.15 to check if this fixes the issue but I
have the following command line output:
[girgias@fedora ~]$ lsmod | grep rtw
rtw88_8822ce 16384 0
rtw88_8822c 483328 1 rtw88_8822ce
rtw88_pci 28672 1 rtw88_8822ce
rtw88_core 167936 2 rtw88_pci,rtw88_8822c
mac80211 1175552 2 rtw88_pci,rtw88_core
cfg80211 1036288 2 rtw88_core,mac80211
Which if I understand your email correctly means I have mixed drivers?
I personally did not start to use the drivers you provide on GitHub as I just do
dnf update to update my packages.
Therefore, does this implies there is an issue with how Fedora is packaging the
WiFi drivers?
If I need to blacklist drivers, I imagine I need to do this at the package
manager level?
George,
No, you have the in-kernel version - the rtw drivers all start with "rtw88".
Your "regression" between 5.15 and 5.16 is that you switched from the GitHub
repo to the in-kernel drivers. There have been many improvements in the kernel
version since 5.16. Those are included in the GitHub version. One or more of
them helped your system. I am not that familiar with fedora, but to get the
kernel versions of the drivers, it is not necessary to "dnf" anything other than
the kernel itself. All the in-kernel drivers come along with it.
Blacklisting is done by creating (as root) a blacklist file in /etc/modprobe.d/,
not in the package manager. It is at a much lower level. On my system is such a
file named /etc/modprobe.d/60-blacklist-rtw8822c.conf with contents of:
blacklist rtw88_8822ce
blacklist rtw88_8822c
blacklist rtw88_pci
blacklist rtw88_core
With this file, I am assured that only the drivers from GitHub will be loaded.
Larry
