Bug#983255: firmware-realtek: Direct firmware load for rtw88/rtw8821c_fw.bin failed with error -2

[Alois Schlögl]

Package: firmware-realtek
Version: 20210208-1
Severity: normal

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

* What led up to the situation?

security update, on linux backports kernel (upgrade from 5.9 to 5.10)

* What exactly did you do (or not do) that was effective (or
ineffective)?

apt update && apt upgrade && reboot

* What was the outcome of this action?

wlan adapter was not available after reboot

dmesg has these lines:
lspci | grep -i wire
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter

dmesg contains these lines:

[ 4.938468] rtw_8821ce 0000:02:00.0: Direct firmware load for rtw88/rtw8821c_fw.bin failed with error -2
[ 4.938472] rtw_8821ce 0000:02:00.0: failed to request firmware
[ 4.938543] rtw_8821ce 0000:02:00.0: failed to load firmware
[ 4.938571] rtw_8821ce 0000:02:00.0: failed to setup chip efuse info
[ 4.938599] rtw_8821ce 0000:02:00.0: failed to setup chip information
[ 4.939514] rtw_8821ce: probe of 0000:02:00.0 failed with error -22

tried to install also latest firmware-realtek from unstable
ii firmware-realtek 20210208-1 all Binary firmware for Realtek wired/wifi/BT adapters
but this did also not change anything.


* What outcome did you expect instead?

wlan working as before.


*** End of the template - remove these template lines ***


-- System Information:
Debian Release: 10.8
APT prefers stable
APT policy: (990, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-0.bpo.3-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_WARN
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8), LANGUAGE=de_AT:de (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

firmware-realtek depends on no packages.

firmware-realtek recommends no packages.

Versions of packages firmware-realtek suggests:
ii initramfs-tools 0.133+deb10u1

-- no debconf information

[maximilian attems]

> lspci | grep -i wire
> 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
>
> dmesg contains these lines:
>
> [ 4.938468] rtw_8821ce 0000:02:00.0: Direct firmware load for rtw88/rtw8821c_fw.bin failed with error -2
> [ 4.938472] rtw_8821ce 0000:02:00.0: failed to request firmware
> [ 4.938543] rtw_8821ce 0000:02:00.0: failed to load firmware
> [ 4.938571] rtw_8821ce 0000:02:00.0: failed to setup chip efuse info
> [ 4.938599] rtw_8821ce 0000:02:00.0: failed to setup chip information
> [ 4.939514] rtw_8821ce: probe of 0000:02:00.0 failed with error -22
>
> tried to install also latest firmware-realtek from unstable
> ii firmware-realtek 20210208-1 all Binary firmware for Realtek wired/wifi/BT adapters
> but this did also not change anything.

there is a newer version of this firmware v9.9.5 in the upstream repository,
could you test commit 80cb579614ee576ae74e650fa0b43d9f7c212039
in linux-firmware git:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

It only says "Refine firmware to improve performance." so if it still
does not work upstream realtek should be informed.

> * What outcome did you expect instead?
>
> wlan working as before.
>
>

Thank you for your report.

[maximilian attems]

tags 983255 moreinfo
stop

On Tue, Feb 23, 2021 at 09:20:30AM +0100, maximilian attems wrote:
> > lspci | grep -i wire
> > 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
> >
> > dmesg contains these lines:
> >
> > [ 4.938468] rtw_8821ce 0000:02:00.0: Direct firmware load for rtw88/rtw8821c_fw.bin failed with error -2
> > [ 4.938472] rtw_8821ce 0000:02:00.0: failed to request firmware
> > [ 4.938543] rtw_8821ce 0000:02:00.0: failed to load firmware
> > [ 4.938571] rtw_8821ce 0000:02:00.0: failed to setup chip efuse info
> > [ 4.938599] rtw_8821ce 0000:02:00.0: failed to setup chip information
> > [ 4.939514] rtw_8821ce: probe of 0000:02:00.0 failed with error -22
> >
> > tried to install also latest firmware-realtek from unstable
> > ii firmware-realtek 20210208-1 all Binary firmware for Realtek wired/wifi/BT adapters
> > but this did also not change anything.
>
> there is a newer version of this firmware v9.9.5 in the upstream repository,
> could you test commit 80cb579614ee576ae74e650fa0b43d9f7c212039
> in linux-firmware git:
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

Have you tried the newer firmware?

--
maks