doesn't work on 4.15.0-55
$ lsmod|grep 8723 rtl8723be 126976 0 btcoexist 434176 1 rtl8723be rtl8723_common 24576 1 rtl8723be rtl_pci 32768 1 rtl8723be rtlwifi 163840 4 rtl_pci,rtl8723be,btcoexist,rtl8723_common mac80211 790528 3 rtl_pci,rtl8723be,rtlwifi
$ modinfo rtl8723be -V kmod version 24 -XZ -ZLIB -EXPERIMENTAL
~/rtlwifi_new$ uname -a Linux laptop 4.15.0-55-lowlatency #60-Ubuntu SMP PREEMPT Tue Jul 2 19:11:22 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
doesn't work on 4.15.0-55
$ lsmod|grep 8723 rtl8723be, btcoexist, rtl8723_ common rtl8723be, rtlwifi
rtl8723be 126976 0
btcoexist 434176 1 rtl8723be
rtl8723_common 24576 1 rtl8723be
rtl_pci 32768 1 rtl8723be
rtlwifi 163840 4 rtl_pci,
mac80211 790528 3 rtl_pci,
$ modinfo rtl8723be -V
kmod version 24
-XZ -ZLIB -EXPERIMENTAL
~/rtlwifi_new$ uname -a 55-lowlatency #60-Ubuntu SMP PREEMPT Tue Jul 2 19:11:22 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Linux laptop 4.15.0-