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#1 2025-01-13 21:30:54
- Daedalus24
- Member
- From: Bucharest, Romania
- Registered: 2015-03-27
- Posts: 51
- Website
AC1300 USB Adaptor Realtek 8812BU + CUPS [SOLVED]
I have recently came back to a desktop configuration and I am trying to connect to my Brother MFC-J3930DW printer (the printer works very well with my Asus laptop) using an AC1300 Dual Band USB Adaptor (Wifi 5). The Linux printer drivers are directly downloaded from Brother.
The rtl88x2bu-dkms-git package is installed as well as linux-zen kernel headers. The printer was detected through CUPS, but I cannot print. It initially gives a message:
cfFilterChain: pdftopdf (PID 20940) exited with no errors.which holds for about 10 seconds, then it falsely reports the page has been printed.
lsusb returns
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 1b3f:1167 Generalplus Technology Inc. WEB CAM
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 002: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 413c:2119 Dell Computer Corp. Dell Secure Link Receiver
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hubwhile
lsusb -v | grep Realtekreturns
Bus 004 Device 002: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey]
idVendor 0x0bda Realtek Semiconductor Corp.
iManufacturer 1 RealtekFinally,
lsmodreturns
snd_seq_dummy 12288 0
snd_hrtimer 12288 1
snd_seq 139264 7 snd_seq_dummy
nf_conntrack_netbios_ns 12288 1
nf_conntrack_broadcast 12288 1 nf_conntrack_netbios_ns
nf_conntrack_sane 20480 2
nft_fib_inet 12288 1
nft_fib_ipv4 12288 1 nft_fib_inet
nft_fib_ipv6 12288 1 nft_fib_inet
nft_fib 12288 3 nft_fib_ipv6,nft_fib_ipv4,nft_fib_inet
nft_reject_inet 12288 16
nf_reject_ipv4 16384 1 nft_reject_inet
nf_reject_ipv6 24576 1 nft_reject_inet
nft_reject 12288 1 nft_reject_inet
nft_ct 28672 10
nft_chain_nat 12288 3
ip6table_nat 12288 0
ip6table_mangle 12288 0
ip6table_raw 12288 0
ip6table_security 12288 0
iptable_nat 12288 0
ccm 20480 0
nf_nat 65536 3 ip6table_nat,nft_chain_nat,iptable_nat
algif_aead 12288 0
nf_conntrack 212992 5 nf_nat,nft_ct,nf_conntrack_netbios_ns,nf_conntrack_sane,nf_conntrack_broadcast
crypto_null 16384 1 algif_aead
nf_defrag_ipv6 24576 1 nf_conntrack
nf_defrag_ipv4 12288 1 nf_conntrack
iptable_mangle 12288 0
des3_ede_x86_64 45056 0
iptable_raw 12288 0
iptable_security 12288 0
cbc 12288 0
des_generic 12288 0
libdes 24576 2 des_generic,des3_ede_x86_64
algif_skcipher 12288 0
cmac 12288 0
md4 12288 0
algif_hash 12288 0
af_alg 32768 3 algif_hash,algif_skcipher,algif_aead
nf_tables 409600 431 nft_ct,nft_reject_inet,nft_fib_ipv6,nft_fib_ipv4,nft_chain_nat,nft_reject,nft_fib,nft_fib_inet
ip6table_filter 12288 0
ip6_tables 36864 5 ip6table_filter,ip6table_raw,ip6table_nat,ip6table_mangle,ip6table_security
iptable_filter 12288 0
88x2bu 5136384 0
uvcvideo 180224 0
videobuf2_vmalloc 20480 1 uvcvideo
snd_usb_audio 577536 1
uvc 12288 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 45056 1 uvcvideo
snd_usbmidi_lib 53248 1 snd_usb_audio
videobuf2_common 98304 4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops
snd_ump 40960 1 snd_usb_audio
cfg80211 1429504 1 88x2bu
snd_rawmidi 57344 2 snd_usbmidi_lib,snd_ump
videodev 405504 2 videobuf2_v4l2,uvcvideo
snd_seq_device 16384 3 snd_seq,snd_ump,snd_rawmidi
mc 98304 5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
rfkill 40960 5 cfg80211
mousedev 24576 0
joydev 24576 0
vfat 24576 1
fat 110592 1 vfat
amd_atl 61440 1
intel_rapl_msr 20480 0
intel_rapl_common 57344 1 intel_rapl_msr
kvm_amd 241664 0
snd_hda_codec_realtek 233472 1
snd_hda_codec_generic 131072 1 snd_hda_codec_realtek
snd_hda_scodec_component 20480 1 snd_hda_codec_realtek
kvm 1470464 1 kvm_amd
snd_hda_codec_hdmi 106496 2
snd_hda_intel 69632 3
crct10dif_pclmul 12288 1
snd_intel_dspcfg 45056 1 snd_hda_intel
crc32_pclmul 12288 0
snd_intel_sdw_acpi 16384 1 snd_intel_dspcfg
polyval_clmulni 12288 0
polyval_generic 12288 1 polyval_clmulni
snd_hda_codec 229376 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
ghash_clmulni_intel 16384 0
sha512_ssse3 53248 0
snd_hda_core 151552 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
sha1_ssse3 32768 0
aesni_intel 126976 0
snd_hwdep 20480 2 snd_usb_audio,snd_hda_codec
r8169 147456 0
ee1004 16384 0
gf128mul 20480 2 polyval_generic,aesni_intel
snd_pcm 221184 5 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
crypto_simd 16384 1 aesni_intel
realtek 49152 1
cryptd 32768 2 crypto_simd,ghash_clmulni_intel
mdio_devres 12288 1 r8169
sp5100_tco 20480 0
snd_timer 57344 3 snd_seq,snd_hrtimer,snd_pcm
wmi_bmof 12288 0
libphy 237568 3 r8169,mdio_devres,realtek
rapl 20480 0
pcspkr 12288 0
snd 163840 24 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_ump,snd_pcm,snd_rawmidi
i2c_piix4 36864 0
ccp 192512 1 kvm_amd
soundcore 16384 1 snd
k10temp 16384 0
i2c_smbus 20480 1 i2c_piix4
gpio_amdpt 16384 0
gpio_generic 24576 1 gpio_amdpt
mac_hid 12288 0
pkcs8_key_parser 12288 0
i2c_dev 28672 0
sg 53248 0
crypto_user 16384 0
loop 40960 0
dm_mod 229376 0
nfnetlink 20480 3 nf_tables
ip_tables 36864 5 iptable_filter,iptable_security,iptable_raw,iptable_nat,iptable_mangle
x_tables 65536 12 ip6table_filter,ip6table_raw,iptable_filter,iptable_security,ip6table_nat,ip6_tables,iptable_raw,ip_tables,iptable_nat,ip6table_mangle,ip6table_security,iptable_mangle
hid_generic 12288 0
nvme 69632 4
nvme_core 262144 5 nvme
sha256_ssse3 40960 0
usbhid 90112 0
nvme_auth 24576 1 nvme_core
btrfs 2273280 2
blake2b_generic 24576 0
libcrc32c 12288 4 nf_conntrack,nf_nat,btrfs,nf_tables
crc32c_generic 12288 0
crc32c_intel 16384 3
xor 20480 1 btrfs
raid6_pq 122880 1 btrfs
radeon 2215936 0
amdgpu 16453632 27
crc16 12288 1 amdgpu
amdxcp 12288 1 amdgpu
drm_exec 12288 1 amdgpu
gpu_sched 65536 1 amdgpu
drm_buddy 24576 1 amdgpu
drm_ttm_helper 16384 3 amdgpu,radeon
ttm 114688 3 amdgpu,radeon,drm_ttm_helper
video 81920 2 amdgpu,radeon
wmi 32768 2 video,wmi_bmof
i2c_algo_bit 24576 2 amdgpu,radeon
drm_suballoc_helper 16384 2 amdgpu,radeon
drm_display_helper 290816 2 amdgpu,radeon
cec 106496 1 drm_display_helpermodinfo 88x2budisplays
filename: /lib/modules/6.12.9-zen1-1-zen/updates/dkms/88x2bu.ko.zst
import_ns: VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver
version: v5.13.1-30-g37e60b26a.20220819_COEX20220812-18317b7b
author: Realtek Semiconductor Corp.
description: Realtek Wireless Lan Driver
license: GPL
srcversion: 2335775667F32CF4DCEDA37
alias: usb:v2C4Ep0107d*dc*dsc*dp*icFFiscFFipFFin*
...
alias: usb:v0BDApB812d*dc*dsc*dp*icFFiscFFipFFin*
alias: usb:v0BDApB82Cd*dc*dsc*dp*icFFiscFFipFFin*
depends: cfg80211
name: 88x2bu
retpoline: Y
vermagic: 6.12.9-zen1-1-zen SMP preempt mod_unload
sig_id: PKCS#7
signer: DKMS module signing key
sig_key: 0F:12:7F:CF:3D:48:10:E9:51:2B:00:70:3D:18:DB:63:8B:91:4C:9F
sig_hashalgo: sha512
...modprobe 88x2bu rtw_drv_log_level=5.....
[ 0.991983] usb 4-2: new SuperSpeed USB device number 2 using xhci_hcd
[ 1.003254] usb 4-2: New USB device found, idVendor=0bda, idProduct=b812, bcdDevice= 3.00
[ 1.003258] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.003260] usb 4-2: Product: USB3.0 802.11ac 1200M Adapter
[ 1.003262] usb 4-2: Manufacturer: Realtek
[ 1.003264] usb 4-2: SerialNumber: 123456
......Any hint or idea is appreciated. Thank you.
Last edited by Daedalus24 (2025-01-14 09:55:00)
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#2 2025-01-14 09:22:38
- Daedalus24
- Member
- From: Bucharest, Romania
- Registered: 2015-03-27
- Posts: 51
- Website
Re: AC1300 USB Adaptor Realtek 8812BU + CUPS [SOLVED]
I have solved the issue by selecting the Brother MFCJ-3930DW driverless option along with the IPP Everywhere driver. Finally, it works. It did not work with the Brother CUPS driver, but that has to do with CUPS configuration and not with the network adapter.
I consider the post would be better suited to the Applications and desktop environment section, so I am asking the moderators to move it there 
.
Last edited by Daedalus24 (2025-01-14 09:26:47)
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