Hi @hui.wang, I do have this wifi and it's not working, I'm happy to help the debugging
$ lspci -nnk | grep 0280 03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822] $ uname -r 4.13.0-36-generic $ apport-collect 1745081 Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. dpkg-query: no packages found matching linux Well, I guess you'll find all you need from the report I'm sending with apport-collect. Thank you very much! Thank you very much -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1745081 Title: Add support for Realtek WiFi device [10ec:b822] Status in HWE Next: New Status in linux package in Ubuntu: Incomplete Status in linux-oem package in Ubuntu: Invalid Status in linux-oem source package in Xenial: Triaged Bug description: 05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:b822] Subsystem: Lenovo Device [17aa:b023] Flags: fast devsel, IRQ 255 I/O ports at c000 [disabled] [size=256] Memory at f2000000 (64-bit, non-prefetchable) [disabled] [size=64K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-b8-22-01 Capabilities: [158] Latency Tolerance Reporting Capabilities: [160] L1 PM Substates To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1745081/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp