Ubuntu 14.04.5 上未检测到 Wifi 驱动程序。设备：hp 15 bw096au，采用 AMD a6-9220。
sudo dkms status
输出：
bcmwl, 6.30.223.248+bdcom, 4.4.0-112-generic, x86_64: installed
r8168, 8.037.00: added
rtl8723de, 5.1.1.8_21285.20171026_COEX20170111-1414: added
rtlwifi-new, 0.10~trusty, 4.4.0-112-generic, x86_64: installed
sudo dkms install rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414
输出：
Kernel preparation unnecessary for this kernel. Skipping...
Building module:
cleaning build area....
'make' all KVER=4.4.0-112-generic.....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8723de: 5.1.1.8_21285.20171026_COEX20170111-1414 not found
Error! Bad return status for module build on kernel: 4.4.0-112-generic (x86_64)
Consult /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/make.log for more information.
modinfo rtl8723de | grep file
输出：
modinfo: ERROR: Module rtl8723de not found.
rfkill list all
输出：
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
sudo modprobe rtl8723de
输出：
modprobe: FATAL: Module rtl8723de not found.
sudo dkms remove rtlwifi-new/0.10~trusty
输出：
Error! Invalid number of parameters passed.
Usage: `remove <module>/<module-version> --all`
or: `remove <module>/<module-version> -k <kernel-version>`
sudo dkms install rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414
输出：
Kernel preparation unnecessary for this kernel. Skipping...
Building module:
cleaning build area....
'make' all KVER=4.4.0-112-generic.....(bad exit status: 2)
ERROR (dkms apport): binary package for rtl8723de: 5.1.1.8_21285.20171026_COEX20170111-1414 not found
Error! Bad return status for module build on kernel: 4.4.0-112-generic (x86_64)
Consult /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/make.log for more information.
make
输出：
make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.4.0-112-generic/build M=/home/kazi/rtl8723de modules make[1]: Entering directory/usr/src/linux-headers-4.4.0-112-generic' CC [M] /home/kazi/rtl8723de/core/rtw_cmd.o 在从 /home/kazi/rtl8723de/include/drv_types.h:32:0 包含的文件中，来自 /home/kazi/rtl8723de/core/rtw_cmd.c:22： /home/kazi/rtl8723de/include/osdep_service.h:41:33：致命错误：linux/sched/signal.h：没有这样的文件或目录 #include <linux/sched/signal.h> ^ 编译终止。make[2]：*** [/home/kazi/rtl8723de/core/rtw_cmd.o] 错误 1 make[1]：*** [模块/home/kazi/rtl8723de] 错误 2 make[1]: 留下/usr/src/linux-headers-4.4.0-112-generic' make: *** [modules] Error 2
“cat /var/lib/dkms/rtl8723de”的目录输出
5.1.1.8_21285.20171026_COEX20170111-1414/build/make.log` DKMS make.log for rtl8723de-5.1.1.8_21285.20171026_COEX20170111-1414 for kernel 4.15.0-20-generic (x86_64)
Sat May 12 02:13:04 IST 2018
make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.15.0-20-generic/build M=/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build modules
make[1]: Entering directory '/usr/src/linux-headers-4.15.0-20-generic'
Makefile:976: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel"
CC [M] /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/core/rtw_cmd.o
In file included from /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service.h:41:0,
from /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/drv_types.h:32,
from /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/core/rtw_cmd.c:22:
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service_linux.h: In function ‘_init_timer’:
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service_linux.h:287:8: error: ‘_timer {aka struct timer_list}’ has no member named ‘data’
ptimer->data = (unsigned long)cntx;
^~
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service_linux.h:288:2: error: implicit declaration of function ‘init_timer’; did you mean ‘_init_timer’? [-Werror=implicit-function-declaration]
init_timer(ptimer);
^~~~~~~~~~
_init_timer
In file included from /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/drv_types.h:32:0,
from /var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/core/rtw_cmd.c:22:
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service.h: In function ‘thread_enter’:
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service.h:369:2: error: implicit declaration of function ‘allow_signal’; did you mean ‘do_signal’? [-Werror=implicit-function-declaration]
allow_signal(SIGTERM);
^~~~~~~~~~~~
do_signal
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service.h: In function ‘flush_signals_thread’:
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service.h:391:6: error: implicit declaration of function ‘signal_pending’; did you mean ‘timer_pending’? [-Werror=implicit-function-declaration]
if (signal_pending(current))
^~~~~~~~~~~~~~
timer_pending
/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/include/osdep_service.h:392:3: error: implicit declaration of function ‘flush_signals’; did you mean ‘do_signal’? [-Werror=implicit-function-declaration]
flush_signals(current);
^~~~~~~~~~~~~
do_signal
cc1: some warnings being treated as errors
scripts/Makefile.build:332: recipe for target '/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/core/rtw_cmd.o' failed
make[2]: *** [/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build/core/rtw_cmd.o] Error 1
Makefile:1552: recipe for target '_module_/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build' failed
make[1]: *** [_module_/var/lib/dkms/rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414/build] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.15.0-20-generic'
Makefile:1884: recipe for target 'modules' failed
make: *** [modules] Error 2
答案1
在某些情况下陣容模块已添加，但尚未完全安装。
sudo dkms remove rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414 --all
如果执行上述任何命令后出现任何错误，停止并在此处发布。在修复这些错误之前，请勿继续。
如果没有错误，则执行以下操作：
sudo rm -rf rtl8723de
git clone -b 4.10-down https://github.com/jeremyb31/rtl8723de.git
sudo dkms add ./rtl8723de
sudo dkms install rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414
然后重新启动。
再次强调，如果有任何错误，请停止并告诉我们，以便我们首先修复它。