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Guten Nachmittag,

habe zu dem Problem im Forum leider keinen aktuellen Beitrag gefunden. Folgendes habe ich schon probiert:

iwconfig
lo        no wireless extensions.

lspci - knn | grep Net -A3; rfkill list
02:00.0 Network Controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
        DeviceName: WLAN
        Subsystem AzureWave RTL8821CE 002.11ac PCIe Wireless Network Adapter [1a3b:3840]
        Kernel modules: rtw88_8821ce
0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

sudo modprobe rtw88_8821ce && dmesg | grep -i rtw
[   15.690157] rtw_8821ce 0000:02:00.0: enabling device (0000 -> 0003)
[   15.727905] rtw_8821ce 0000:02:00.0: Firmware version 24.8.0; H2C version 12
[   15.754147] rtw_8821ce 0000:02:00.0: rfe4 isn't supported
[   15.754436] rtw_8821ce 0000:02:00.0: failed to setup chip efuse info
[   15.754448] rtw_8821ce 0000:02:00.0: failed to setup chip information

lsmod | grep 8821
rtw88_8821ce          16384  0
rtw88_8821c           94208  1 rtw88_8821ce
rtw88_pci             24576  1 rtw88_8821ce
rtw88_core           200704  2 rtw88_pci,rtw88_8821c

Neuinstallation...mit veralteter Version.

→ Kubuntu 22.04

...und dann kümmert man sich, wenn etwas nicht funktioniert.

Es ist ein Firmware/Treiber-Problem, möglicherweise behoben in aktuelleren Kerneln. Siehe: https://askubuntu.com/questions/1390106/how-to-activate-wifi-on-new-laptop ← Hier sind auch zwei Lösungsvorschläge enthalten.

Auf jeden Fall vorher einen möglichst aktuellen Kernel installieren! D.h. Ubuntu 22.04 installieren oder 20.04 im HWE-Modus.

Welcher Kernel wird verwendet? Zeige:

uname -a 

Guten Tag, leider kam etwas dazwischen - mittlerweile ist aber Kubuntu 22.04 installiert. Leider funktioniert das WLAN nun noch immer nicht - gibt es vielleicht noch weitere Lösungsvorschläge?

Die Kernelversion ist 5.15.0-25-generic.

Dann versuche

sudo apt install rtl8821ce-dkms

Neustart und zeigen

iwconfig
lsmod

Hallo Takt176,

Das Ding hat bestimmt kein LAN Adapter, d.h. per Tetering, USB Wlan Stick oder USB to LAN Adapter das Kerneltreibermodul installieren.

Gruss Lidux

iwconfig
lo        no wireless extensions.

enx00133bab102b  no wireless extensions.

lsmod
Module                  Size  Used by
rfcomm                 81920  16
cmac                   16384  3
algif_hash             16384  1
algif_skcipher         16384  1
af_alg                 32768  6 algif_hash,algif_skcipher
bnep                   28672  2
nls_iso8859_1          16384  1
snd_sof_pci_intel_apl    16384  0
snd_sof_intel_hda_common   102400  1 snd_sof_pci_intel_apl
soundwire_intel        40960  1 snd_sof_intel_hda_common
soundwire_generic_allocation    16384  1 soundwire_intel
soundwire_cadence      36864  1 soundwire_intel
snd_sof_intel_hda      20480  1 snd_sof_intel_hda_common
snd_sof_pci            20480  2 snd_sof_intel_hda_common,snd_sof_pci_intel_apl
snd_sof_xtensa_dsp     16384  1 snd_sof_intel_hda_common
snd_sof               147456  2 snd_sof_pci,snd_sof_intel_hda_common
soundwire_bus          94208  3 soundwire_intel,soundwire_generic_allocation,soundwire_cadence
snd_soc_skl           172032  0
snd_soc_hdac_hda       24576  2 snd_sof_intel_hda_common,snd_soc_skl
snd_hda_codec_hdmi     77824  1
snd_hda_ext_core       32768  4 snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_soc_skl,snd_sof_intel_hda
snd_soc_sst_ipc        20480  1 snd_soc_skl
snd_soc_sst_dsp        36864  1 snd_soc_skl
snd_soc_acpi_intel_match    61440  3 snd_sof_intel_hda_common,snd_soc_skl,snd_sof_pci_intel_apl
snd_soc_acpi           16384  3 snd_soc_acpi_intel_match,snd_sof_intel_hda_common,snd_soc_skl
snd_soc_core          339968  5 soundwire_intel,snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_soc_skl
snd_hda_codec_realtek   159744  1
snd_compress           24576  1 snd_soc_core
ac97_bus               16384  1 snd_soc_core
snd_hda_codec_generic   102400  1 snd_hda_codec_realtek
snd_pcm_dmaengine      16384  1 snd_soc_core
ledtrig_audio          16384  2 snd_hda_codec_generic,snd_sof
uvcvideo              106496  0
snd_hda_intel          53248  3
intel_pmc_bxt          16384  0
intel_telemetry_pltdrv    20480  0
intel_punit_ipc        16384  1 intel_telemetry_pltdrv
intel_telemetry_core    20480  1 intel_telemetry_pltdrv
snd_intel_dspcfg       28672  3 snd_hda_intel,snd_sof_intel_hda_common,snd_soc_skl
snd_intel_sdw_acpi     20480  2 snd_sof_intel_hda_common,snd_intel_dspcfg
videobuf2_vmalloc      20480  1 uvcvideo
videobuf2_memops       20480  1 videobuf2_vmalloc
videobuf2_v4l2         32768  1 uvcvideo
videobuf2_common       77824  4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops
videodev              258048  3 videobuf2_v4l2,uvcvideo,videobuf2_common
snd_hda_codec         163840  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda
snd_hda_core          110592  10 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hda,snd_soc_skl,snd_sof_intel_hda
mc                     65536  4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
rtsx_usb_ms            24576  0
snd_hwdep              16384  1 snd_hda_codec
snd_pcm               143360  11 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,soundwire_intel,snd_sof,snd_sof_intel_hda_common,snd_compress,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine
btusb                  61440  0
btrtl                  24576  1 btusb
snd_seq_midi           20480  0
snd_seq_midi_event     16384  1 snd_seq_midi
memstick               24576  1 rtsx_usb_ms
x86_pkg_temp_thermal    20480  0
mei_hdcp               24576  0
btbcm                  24576  1 btusb
intel_powerclamp       20480  0
coretemp               24576  0
intel_rapl_msr         20480  0
snd_rawmidi            49152  1 snd_seq_midi
snd_seq                77824  2 snd_seq_midi,snd_seq_midi_event
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
kvm_intel             372736  0
snd_timer              40960  2 snd_seq,snd_pcm
cfg80211              974848  0
btintel                40960  1 btusb
snd                   106496  19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi
bluetooth             704512  43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
kvm                  1028096  1 kvm_intel
mei_me                 40960  1
mei                   135168  3 mei_hdcp,mei_me
input_leds             16384  0
joydev                 32768  0
serio_raw              20480  0
rapl                   20480  0
intel_cstate           20480  0
ecdh_generic           16384  2 bluetooth
asus_nb_wmi            28672  0
ecc                    36864  1 ecdh_generic
soundcore              16384  1 snd
wmi_bmof               16384  0
processor_thermal_device_pci_legacy    16384  0
processor_thermal_device    20480  1 processor_thermal_device_pci_legacy
processor_thermal_rfim    24576  1 processor_thermal_device
processor_thermal_mbox    16384  2 processor_thermal_rfim,processor_thermal_device
processor_thermal_rapl    20480  1 processor_thermal_device
intel_rapl_common      40960  2 intel_rapl_msr,processor_thermal_rapl
hid_multitouch         32768  0
8250_dw                16384  0
int3400_thermal        20480  0
int3403_thermal        20480  0
int340x_thermal_zone    20480  2 int3403_thermal,processor_thermal_device
intel_soc_dts_iosf     20480  1 processor_thermal_device_pci_legacy
acpi_thermal_rel       16384  1 int3400_thermal
mac_hid                16384  0
asus_wireless          20480  0
sch_fq_codel           20480  2
ipmi_devintf           20480  0
ipmi_msghandler       122880  1 ipmi_devintf
msr                    16384  0
parport_pc             49152  0
ppdev                  24576  0
lp                     28672  0
parport                69632  3 parport_pc,lp,ppdev
ramoops                32768  0
reed_solomon           28672  1 ramoops
mtd                    77824  0
efi_pstore             16384  0
pstore_blk             16384  0
pstore_zone            32768  1 pstore_blk
ip_tables              32768  0
x_tables               53248  1 ip_tables
autofs4                49152  2
rtsx_usb_sdmmc         36864  0
cdc_ether              24576  0
usbnet                 53248  1 cdc_ether
r8152                 114688  0
rtsx_usb               28672  2 rtsx_usb_sdmmc,rtsx_usb_ms
mii                    16384  2 usbnet,r8152
i915                 3104768  34
i2c_algo_bit           16384  1 i915
ttm                    86016  1 i915
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
mfd_aaeon              16384  0
hid_generic            16384  0
asus_wmi               45056  2 asus_nb_wmi,mfd_aaeon
drm_kms_helper        311296  1 i915
sparse_keymap          16384  1 asus_wmi
ghash_clmulni_intel    16384  0
aesni_intel           376832  4
syscopyarea            16384  1 drm_kms_helper
crypto_simd            16384  1 aesni_intel
sysfillrect            20480  1 drm_kms_helper
platform_profile       16384  1 asus_wmi
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
cec                    61440  2 drm_kms_helper,i915
rc_core                65536  1 cec
ahci                   45056  2
i2c_i801               36864  0
i2c_smbus              20480  1 i2c_i801
xhci_pci               24576  0
drm                   622592  13 drm_kms_helper,i915,ttm
libahci                45056  1 ahci
wmi                    32768  3 asus_wmi,wmi_bmof,mfd_aaeon
xhci_pci_renesas       20480  1 xhci_pci
intel_lpss_pci         24576  0
intel_lpss             16384  1 intel_lpss_pci
idma64                 20480  0
i2c_hid_acpi           16384  0
i2c_hid                36864  1 i2c_hid_acpi
hid                   151552  3 i2c_hid,hid_multitouch,hid_generic
video                  61440  2 asus_wmi,i915
pinctrl_geminilake     24576  0

r8152                 114688  0

Scheint doch einen (USB-)LAN zu geben?! Zeige

lspci -nnk
lsusb

Takt176 schrieb:

Die Kernelversion ist 5.15.0-25-generic.

Dieser Kernel vom Installationsmedium 22.04 zickt etwas beim Netzwerk und ist sowieso veraltet.

Aktualisiere Dein System und zeige dann:

uname -a
ip link
nmcli device

Ja, der USB-Adapter musste erst besorgt werden...

Hier erneut die gewünschten Ausgaben:

lspci -nnk
00:00.0 Host bridge [0600]: Intel Corporation Gemini Lake Host Bridge [8086:31f0] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Gemini Lake Host Bridge [1043:1261]
00:00.1 Signal processing controller [1180]: Intel Corporation Celeron/Pentium Silver Processor Dynamic Platform and Thermal Framework Processor Participant [8086:318c] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Dynamic Platform and Thermal Framework Processor Participant [1043:1261]
        Kernel driver in use: proc_thermal
        Kernel modules: processor_thermal_device_pci_legacy
00:00.3 System peripheral [0880]: Intel Corporation Celeron/Pentium Silver Processor Gaussian Mixture Model [8086:3190] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Gaussian Mixture Model [1043:1de0]
00:02.0 VGA compatible controller [0300]: Intel Corporation GeminiLake [UHD Graphics 600] [8086:3185] (rev 03)
        DeviceName: VGA
        Subsystem: ASUSTeK Computer Inc. GeminiLake [UHD Graphics 600] [1043:1261]
        Kernel driver in use: i915
        Kernel modules: i915
00:0e.0 Audio device [0403]: Intel Corporation Celeron/Pentium Silver Processor High Definition Audio [8086:3198] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor High Definition Audio [1043:1de0]
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel, snd_soc_skl, snd_sof_pci_intel_apl
00:0f.0 Communication controller [0780]: Intel Corporation Celeron/Pentium Silver Processor Trusted Execution Engine Interface [8086:319a] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Trusted Execution Engine Interface [1043:1261]
        Kernel driver in use: mei_me
        Kernel modules: mei_me
00:12.0 SATA controller [0106]: Intel Corporation Celeron/Pentium Silver Processor SATA Controller [8086:31e3] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor SATA Controller [1043:1261]
        Kernel driver in use: ahci
        Kernel modules: ahci
00:13.0 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31d8] (rev f3)
        Kernel driver in use: pcieport
00:13.3 PCI bridge [0604]: Intel Corporation Gemini Lake PCI Express Root Port [8086:31db] (rev f3)
        Kernel driver in use: pcieport
00:15.0 USB controller [0c03]: Intel Corporation Celeron/Pentium Silver Processor USB 3.0 xHCI Controller [8086:31a8] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor USB 3.0 xHCI Controller [1043:201f]
        Kernel driver in use: xhci_hcd
        Kernel modules: xhci_pci
00:17.0 Signal processing controller [1180]: Intel Corporation Device [8086:31b4] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Device [1043:1261]
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
00:17.1 Signal processing controller [1180]: Intel Corporation Device [8086:31b6] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Device [1043:1261]
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
00:18.0 Signal processing controller [1180]: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller [8086:31bc] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Serial IO UART Host Controller [1043:1261]
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
00:18.1 Signal processing controller [1180]: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller [8086:31be] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Serial IO UART Host Controller [1043:1261]
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
00:18.2 Signal processing controller [1180]: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller [8086:31c0] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Serial IO UART Host Controller [1043:1261]
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
00:18.3 Signal processing controller [1180]: Intel Corporation Celeron/Pentium Silver Processor Serial IO UART Host Controller [8086:31ee] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Serial IO UART Host Controller [1043:1261]
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci
00:1f.0 ISA bridge [0601]: Intel Corporation Celeron/Pentium Silver Processor LPC Controller [8086:31e8] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor LPC Controller [1043:1261]
00:1f.1 SMBus [0c05]: Intel Corporation Celeron/Pentium Silver Processor Gaussian Mixture Model [8086:31d4] (rev 03)
        Subsystem: ASUSTeK Computer Inc. Celeron/Pentium Silver Processor Gaussian Mixture Model [1043:1261]
        Kernel driver in use: i801_smbus
        Kernel modules: i2c_i801
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
        DeviceName: WLAN
        Subsystem: AzureWave RTL8821CE 802.11ac PCIe Wireless Network Adapter [1a3b:3040]
        Kernel modules: rtw88_8821ce, rtl8821ce

lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 004: ID 04f2:b64a Chicony Electronics Co., Ltd USB2.0 VGA UVC WebCam
Bus 001 Device 003: ID 0bda:8152 Realtek Semiconductor Corp. RTL8152 Fast Ethernet Adapter
Bus 001 Device 002: ID 13d3:3529 IMC Networks Bluetooth Radio
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enx00133bab102b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 00:13:3b:ab:10:2b brd ff:ff:ff:ff:ff:ff

mcli device
DEVICE           TYPE      STATE      CONNECTION        
enx00133bab102b  ethernet  connected  Wired connection 1
lo               loopback  unmanaged  --                 

Der Kernel ist jetzt 5.15.0-47-generic

sudo dmesg |grep 8821ce

SecureBoot aus?

SecureBoot ist aktiv und ich weiß leider nicht, wie ich es deaktivieren kann, da die Option im BIOS grau ist und sich nicht bearbeiten lässt...

Bist du als Admin im UEFI? Was für dein Mainboard/Modell?

Takt176 schrieb:

SecureBoot ist aktiv

Dann wird eine WLAN-Hardware mit RTL8821CE-Chip unter Linux nicht funktionieren.

und ich weiß leider nicht, wie ich es deaktivieren kann

Die Bedienungsanleitung zu Deinem Rechner muss es wissen. Wenn nicht, dann hat der Rechner einen versteckten Mangel und Du kannst ihn deshalb dem Händler zurück geben.