Obligatory I'm completely new to Ubuntu and Linux in general, and I've run into the same problem everybody does when first starting - my WiFi isn't working. I tried following this question which had been asked already for the same model laptop: Wi-Fi not working on Lenovo ThinkPad E570 (Realtek RTL8821CE) , however all I got was a bunch of errors instead:
error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.ndo_select_queue = rtw_select_queue,
And then after trying to do the "sudo make install" function, I get:
install -p -m 644 8821ce.ko /lib/modules/4.15.0-43-generic/kernel/drivers/net/wireless/
install: cannot stat '8821ce.ko': No such file or directory
Makefile:1908: recipe for target 'install' failed
make: *** [install] Error 1
I'm running Ubuntu 18.04.1 and I have access to an Ethernet cable, however I would greatly like to have my WiFi card working. What can I do?
Edit: I should also mention that the hardware details (as viewed from windows) is:
Realtek 8822BE Wireless LAN 802.11ac
Actually thinking of it now, is that the same driver as in that link I posted above? That was an 8821ce, but if that's supposed to be the same code then that explains why mine wasn't working. Would I have to download something else for an 8822BE?
Edit
Running
lspci | grep -i real returns:
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device b822
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
If it helps, I've noticed that when booting back into Windows that the wifi is initially shown as being off, before switching itself back on
lspci | grep -i realshow b821 or c821? – Jeremy31 Jan 08 '19 at 15:43lsmod | grep cfgshow r8822be in results? – Jeremy31 Jan 09 '19 at 11:24cfg80211 622592 1 mac80211– wertie8297 Jan 09 '19 at 12:26