我最近遇到了 WiFi 问题，它运行得有点混乱，我在安装其他应用程序时注意到问题似乎来自软件包backport-iwlwifi-7906，但我不太确定如何解决它...我不认为我在切换到 Ubuntu 19.10 之前遇到过这个问题。
我看见这个问题已经，但就我而言，网络已被识别，所以我不确定该修复程序是否适用于我的情况，并且我不想冒险在不知道是否是个好主意的情况下尝试某些操作，从而完全破坏我的 WiFi！
以下是我lshw -C network针对相应设备的输出：
*-network
description: Wireless interface
product: Wireless 8260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 3a
serial: e4:a7:a0:cc:24:87
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.3.0-23-generic
firmware=36.77d01142.0 ip=192.168.1.19 latency=0 link=yes multicast=yes
wireless=IEEE 802.11
resources: irq:129 memory:df000000-df001fff
这是我的lspci -nnk | grep 0280 -A2输出：
02:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3]
(rev 3a)
Subsystem: Intel Corporation Dual Band Wireless-AC 8260 [8086:1010]
Kernel driver in use: iwlwifi
以下是我在运行时收到的完整消息，apt-get upgrade当时其他所有内容均已升级：
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up backport-iwlwifi-dkms (7906-0ubuntu1) ...
Removing old backport-iwlwifi-7906 DKMS files...
------------------------------
Deleting module version: 7906
completely from the DKMS tree.
------------------------------
Done.
Loading new backport-iwlwifi-7906 DKMS files...
Building for 5.3.0-23-generic
Building initial module for 5.3.0-23-generic
ERROR: Cannot create report: [Errno 17]
File exists: '/var/crash/backport-iwlwifi-dkms.0.crash'
Error! Bad return status for module build on kernel: 5.3.0-23-generic (x86_64)
Consult /var/lib/dkms/backport-iwlwifi/7906/build/make.log for more information.
dpkg: error processing package backport-iwlwifi-dkms (--configure):
installed backport-iwlwifi-dkms package post-installation script subprocess
returned error exit status 10
Errors were encountered while processing:
backport-iwlwifi-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)
非常感谢您的帮助，我不确定还有哪些其他信息可能有用，所以请告诉我是否应该运行任何其他命令来获得更多输出！
编辑：按照 heynnema 的建议后，内容如下/var/lib/dkms/backport-iwlwifi/7906/build/make.log（抱歉，我不太理解这个日志，对 Linux/Ubuntu 的技术不太了解，所以我不确定哪些行是相关的，哪些不相关）：
DKMS make.log for backport-iwlwifi-7906 for kernel 5.3.0-23-generic (x86_64)
Sat 23 Nov 15:34:09 EET 2019
cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -c -o conf.o conf.c
cc -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -c -o zconf.tab.o zconf.tab.c
cc conf.o zconf.tab.o -o conf
#
# configuration written to .config
#
make[5]: 'conf' is up to date.
#
# configuration written to .config
#
Building backport-include/backport/autoconf.h ... done.
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/compat/main.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/main.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/core.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/fw.o
LD [M] /var/lib/dkms/backport-iwlwifi/7906/build/compat/compat.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/sysfs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/status.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/driver-ops.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/radiotap.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/nvm.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/ops.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/sta_info.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/util.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/xvt.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/phy-ctxt.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/user-infc.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/reg.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/wep.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/mac-ctxt.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/aead_api.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/utils.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/wpa.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/utils.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/scan.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/fw.o
/var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/utils.c: In function ‘iwl_mvm_get_sync_time’:
/var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/utils.c:1468:14: error: implicit declaration of function ‘ktime_get_boot_ns’; did you mean ‘ktime_get_raw_ns’? [-Werror=implicit-function-declaration]
1468 | *boottime = ktime_get_boot_ns();
| ^~~~~~~~~~~~~~~~~
| ktime_get_raw_ns
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/scan.o
cc1: some warnings being treated as errors
make[9]: *** [scripts/Makefile.build:290: /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm/utils.o] Error 1
make[8]: *** [scripts/Makefile.build:519: /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/mvm] Error 2
make[8]: *** Waiting for unfinished jobs....
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/nvm.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/rx.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/nl80211.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/debugfs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/mlme.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/offchannel.o
LD [M] /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi/xvt/iwlxvt.o
make[7]: *** [scripts/Makefile.build:519: /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel/iwlwifi] Error 2
make[6]: *** [scripts/Makefile.build:519: /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless/intel] Error 2
make[5]: *** [scripts/Makefile.build:519: /var/lib/dkms/backport-iwlwifi/7906/build/drivers/net/wireless] Error 2
make[5]: *** Waiting for unfinished jobs....
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/ht.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/ibss.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/agg-tx.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/agg-rx.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/sme.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/vht.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/he.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/chan.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/ethtool.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/ibss.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/mesh.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/ap.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/iface.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/trace.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/ocb.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/pmsr.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/debugfs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/rate.o
GEN /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/shipped-certs.c
GEN /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/extra-certs.c
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/shipped-certs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/extra-certs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/michael.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/tkip.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/aes_cmac.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/aes_gmac.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/fils_aead.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/cfg.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/ethtool.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/rx.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/spectmgmt.o
LD [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/wireless/cfg80211.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/tx.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/key.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/util.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/wme.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/chan.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/trace.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/mlme.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/tdls.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/ocb.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/led.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/debugfs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/debugfs_sta.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/debugfs_netdev.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/debugfs_key.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/pm.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/rc80211_minstrel.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/rc80211_minstrel_ht.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/rc80211_minstrel_debugfs.o
CC [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/rc80211_minstrel_ht_debugfs.o
LD [M] /var/lib/dkms/backport-iwlwifi/7906/build/net/mac80211/mac80211.o
make[4]: *** [Makefile:1655: _module_/var/lib/dkms/backport-iwlwifi/7906/build] Error 2
make[3]: *** [Makefile.build:6: modules] Error 2
make[2]: *** [Makefile.real:100: modules] Error 2
make[1]: *** [Makefile:43: modules] Error 2
make: *** [Makefile:30: default] Error 2
下面是dkms status：
backport-iwlwifi, 7906: added
答案1
从@Pilot6的评论中，我认为这个包可能不是必需的，所以用了一个sweet sudo apt-get remove backport-iwlwifi-dkms，解决了这个问题。仍然不确定我是如何安装这个包的，但至少现在一切似乎都很好！
我唯一还不确定的是：现在apt-get告诉我dkms不再需要它了，删除它安全吗？我以为这dkms是一个相当核心的软件包，但同样，我在这里还是个新手。
答案2
您可以通过以下方式彻底删除此模块
sudo dkms remove backport-iwlwifi/7906 --all
如果这不起作用，您可以通过以下方式手动将其从 dkms 树中删除
sudo rm -r /var/lib/dkms/backport-iwlwifi
请小心，不要在此命令中输入错误，否则可能会删除一些有用的东西。
通过这种方式删除是相当安全的，因为dkms它不会在其他地方存储信息apt。
源必须存储在中/usr/src，您也可以从那里删除，但这不会影响任何东西。
答案3
另一个解决方案：
就我的情况而言，上述所有方法均无效（重启后，它再次出现）。因此，在我从 PC（Jetson Nano）上拆下 wifi 模块后，它已被移除。