Bugzilla – Bug 1170941
no wifi with kernel 5.6.6 in tw snapshot 20200425
Last modified: 2020-04-30 20:17:49 UTC
On booting Tumbleweed after updating to snapshot 20200425 the Network Manager shows no connection. When I open the Connection Systems Settings Module and click on my configured wifi access point, a PolicyKit dialog pops up requesting authorization with the root password. I enter the password and nothing happens, and the wifi remains unconnected. This is with kernel 5.6.6-1-default. When I reboot and choose kernel 5.6.4 from the Grub menu, on logging on the wifi connection is there and active, as usual. So this seems to be a regression in 5.6.6. This is with a Realtek RTL8821CE 802.11ac PCIe Wireless Network Adapter.
Could you give hwinfo output? Also give dmesg output after the boot on both working and non-working kernels, too. Thanks.
Also try the kernel in OBS Kernel:stable repo, if you don't use Secure Boot.
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(In reply to Takashi Iwai from comment #2)
> Also try the kernel in OBS Kernel:stable repo, if you don't use Secure Boot.
I'll try it when I have more time, hopefully on the weekend.
Which kernel module are you using? It looks like the downstream driver, judging from hwinfo output.
One more favor: could you take hwinfo output from the working, 5.6.4 kernel, too?
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(In reply to Takashi Iwai from comment #7)
> Which kernel module are you using? It looks like the downstream driver,
> judging from hwinfo output.
I've attached the sorted output of lsmod. I believe the module for the wifi is from the rtl8821ce-kmp-default package from obs://build.opensuse.org/home:Sauerland
OK, then you'd need the KMP built to the corresponding target (Kernel_stable), I suppose.
(In reply to Takashi Iwai from comment #12)
> OK, then you'd need the KMP built to the corresponding target
> (Kernel_stable), I suppose.
Hm, so far every time I've done zypper dup and there was a new kernel, that module has also been updated. Maybe this time it wasn't or it was buggy....
Ah, just checked and there's a new module available, now running zypper dup...
it's removing the 5.6.6_1-2.17 version of the module and installing 1-2.18...
Update finished... rebooting with 5.6.6... and the wifi connection is back! So I guess the previous module was buggy but it's now fixed. So you can close this bug. Thanks for the feedback.
Good to hear that you managed to work. Let's close now.