你好，圣诞快乐，
我有一台新的联想 Yoga C930，并尝试在这台机器上安装 Ubuntu 18.10，但 Wifi 无法正常工作。我不是 Linux 专业人士，但我在过去几个小时尝试了很多次（也使用了本论坛的答案）。
首先，在 Bios 中打开 Wifi（我仔细检查了这一点）。如果我打开 Wifi 设置，则会显示“Kein Funknetzwerkadapter gefunden”消息。通过有线 LAN（通过 USB-C）连接开箱即可使用。
lspci | grep Wireless
6b:00.0 Network controller: Intel Corporation Wireless-AC 9260 (rev 29)
我对这个输出感到疑惑：
rfkill list all
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: yes
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
4: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
我不确定 ideapad_wlan 或 phy0 是否正确。
也许 lsmod 也很有趣：
Module Size Used by
iwlmvm 368640 0
iwlwifi 294912 1 iwlmvm
mac80211 794624 1 iwlmvm
cfg80211 663552 3 iwlmvm,iwlwifi,mac80211
cdc_ether 16384 0
usbnet 45056 1 cdc_ether
r8152 61440 0
mii 16384 2 usbnet,r8152
snd_usb_audio 225280 2
snd_usbmidi_lib 32768 1 snd_usb_audio
thunderbolt 122880 0
rfcomm 77824 4
cmac 16384 1
bnep 20480 2
nls_iso8859_1 16384 1
arc4 16384 2
snd_hda_codec_hdmi 49152 1
snd_soc_skl 102400 0
snd_soc_skl_ipc 61440 1 snd_soc_skl
snd_soc_sst_ipc 16384 1 snd_soc_skl_ipc
snd_soc_sst_dsp 32768 1 snd_soc_skl_ipc
snd_hda_codec_realtek 106496 1
snd_hda_ext_core 24576 1 snd_soc_skl
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
snd_soc_acpi 16384 1 snd_soc_skl
snd_soc_core 229376 1 snd_soc_skl
snd_compress 20480 1 snd_soc_core
ac97_bus 16384 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
snd_hda_intel 40960 3
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 81920 7 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_soc_skl
snd_hwdep 20480 2 snd_usb_audio,snd_hda_codec
snd_pcm 98304 9 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_ext_core,snd_hda_codec,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 208896 0
kvm 622592 1 kvm_intel
snd_seq_midi 16384 0
irqbypass 16384 1 kvm
snd_seq_midi_event 16384 1 snd_seq_midi
intel_cstate 20480 0
intel_rapl_perf 16384 0
snd_rawmidi 32768 2 snd_seq_midi,snd_usbmidi_lib
uvcvideo 98304 0
videobuf2_vmalloc 16384 1 uvcvideo
btusb 45056 0
videobuf2_memops 16384 1 videobuf2_vmalloc
btrtl 16384 1 btusb
videobuf2_v4l2 24576 1 uvcvideo
snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event
btbcm 16384 1 btusb
videobuf2_common 45056 2 videobuf2_v4l2,uvcvideo
input_leds 16384 0
btintel 20480 1 btusb
serio_raw 16384 0
intel_wmi_thunderbolt 16384 0
wmi_bmof 16384 0
videodev 188416 3 videobuf2_v4l2,uvcvideo,videobuf2_common
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
bluetooth 548864 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
hid_sensor_als 16384 1
hid_sensor_accel_3d 16384 1
snd_timer 32768 2 snd_seq,snd_pcm
hid_sensor_trigger 16384 4 hid_sensor_als,hid_sensor_accel_3d
industrialio_triggered_buffer 16384 2 hid_sensor_als,hid_sensor_accel_3d
kfifo_buf 16384 1 industrialio_triggered_buffer
snd 81920 25 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_compress,snd_soc_core,snd_pcm,snd_rawmidi
hid_sensor_iio_common 16384 3 hid_sensor_trigger,hid_sensor_als,hid_sensor_accel_3d
soundcore 16384 1 snd
ucsi_acpi 16384 0
industrialio 69632 7 industrialio_triggered_buffer,hid_sensor_trigger,kfifo_buf,hid_sensor_als,hid_sensor_accel_3d
media 40960 2 videodev,uvcvideo
joydev 20480 0
mei_me 40960 0
hid_multitouch 20480 0
typec_ucsi 32768 1 ucsi_acpi
ecdh_generic 24576 2 bluetooth
8250_dw 16384 0
processor_thermal_device 16384 0
idma64 20480 0
intel_pch_thermal 16384 0
mei 98304 1 mei_me
virt_dma 16384 1 idma64
intel_soc_dts_iosf 16384 1 processor_thermal_device
typec 32768 1 typec_ucsi
ideapad_laptop 32768 0
sparse_keymap 16384 1 ideapad_laptop
int3403_thermal 16384 0
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
acpi_pad 180224 0
int3400_thermal 16384 0
acpi_thermal_rel 16384 1 int3400_thermal
mac_hid 16384 0
sch_fq_codel 20480 2
parport_pc 36864 0
ppdev 20480 0
lp 20480 0
parport 49152 3 parport_pc,lp,ppdev
ip_tables 24576 0
x_tables 40960 1 ip_tables
autofs4 40960 2
algif_skcipher 16384 0
af_alg 24576 1 algif_skcipher
dm_crypt 40960 1
hid_sensor_custom 20480 0
wacom 106496 0
usbhid 49152 1 wacom
hid_sensor_hub 20480 5 hid_sensor_trigger,hid_sensor_iio_common,hid_sensor_als,hid_sensor_accel_3d,hid_sensor_custom
hid_generic 16384 0
i915 1740800 12
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
pcbc 16384 0
i2c_algo_bit 16384 1 i915
aesni_intel 200704 4
nvme 32768 3
drm_kms_helper 172032 1 i915
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
cryptd 24576 4 crypto_simd,ghash_clmulni_intel,aesni_intel
sysimgblt 16384 1 drm_kms_helper
glue_helper 16384 1 aesni_intel
fb_sys_fops 16384 1 drm_kms_helper
i2c_i801 28672 0
nvme_core 81920 5 nvme
drm 458752 5 drm_kms_helper,i915
i2c_hid 20480 0
intel_lpss_pci 20480 0
intel_lpss 16384 1 intel_lpss_pci
hid 126976 6 i2c_hid,wacom,usbhid,hid_multitouch,hid_sensor_hub,hid_generic
wmi 24576 3 intel_wmi_thunderbolt,wmi_bmof,ideapad_laptop
video 45056 2 ideapad_laptop,i915
有什么想法吗？或者我需要发布更多信息吗？
答案1
通常的修复方法是将 ideapad-laptop 模块列入黑名单，但还有另一种方法可以修复
sudo apt install git dkms build-essential
git clone -b 4.18 https://github.com/jeremyb31/ideapad-laptop.git
sudo dkms add ./ideapad-laptop
sudo dkms install ideapad-laptop/1.0
echo "options ideapad_laptop override_has_hw_rfkill_switch=0" | sudo tee /etc/modprobe.d/ideapad_laptop.conf检查mokutil --sb-state是否显示已启用安全启动，您需要在 BIOS 设置中重新启动时禁用它。请不要更改安全启动签名密钥
拥有 4.15 内核的 Ubuntu 18.04 用户应该使用
git clone https://github.com/jeremyb31/ideapad-laptop.git新代码由 spotchat IRC 上的用户 ryuo 提供