Gentoo Archives: gentoo-user

From: Michael Mol <mikemol@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] [yoga13] rtl8723au
Date: Sat, 14 Sep 2013 14:37:10
Message-Id: 5234747B.6070701@gmail.com
1 So, for work, I got a Lenovo IdeaPad Yoga 13. I've got it booting
2 Gentoo. The rtl8723au chipset, which manages both wifi and bluetooth in
3 this laptop, does not have a driver in =sys-kernel/gentoo-sources-3.10.7.
4
5 Everything I know about the driver comes from two places. First, the
6 LKML thread where Larry Finger announced his obtainment of the driver
7 from Realtek, and his uploading it to github.
8
9 https://lkml.org/lkml/2013/4/1/280
10
11 Second, the relevant Github repo (and the particular commit at which I
12 have it):
13
14 https://github.com/lwfinger/rtl8723au/commit/58a426d1ce29d8c26c36630ef8970afdc6876fcc
15
16 Now, here's what's weird. That driver code works fine under Ubuntu
17 13.04. Boot into Ubuntu 13.04, build the driver, insmod 8723au.ko, and
18 NetworkManager/nm-applet tells me wireless networks are available.
19
20 Under Gentoo, using 3.10.7, no such luck. Build the driver, insmod it,
21 and NetworkManager suddenly thinks there's a *wired* NIC present. The
22 Yoga 13 doesn't have a wired NIC.
23
24 iwlist scan gives:
25
26 enp0s26u1u4i2 Interface doesn't support scanning.
27
28 ip link show gives:
29
30 9: enp0s26u1u4i2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq
31 state DOWN mode DEFAULT qlen 1000
32 link/ether 20:16:d8:b0:25:77 brd ff:ff:ff:ff:ff:ff
33
34 The NIC doesn't appear under lspci, but it does appear under lsusb:
35
36 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
37 |__ Port 1: Dev 2, If 0, Class=Hub, Driver=, 480M
38 |__ Port 4: Dev 4, If 0, Class=Wireless, Driver=, 480M
39 |__ Port 4: Dev 4, If 1, Class=Wireless, Driver=, 480M
40 |__ Port 4: Dev 4, If 2, Class=Vendor Specific Class,
41 Driver=rtl8723au, 480M
42
43 (Several buses and ports omitted, just including the one that appears to
44 be where the NIC is located at)
45
46 Hopefully I'm just missing something silly. If not, I'm perfectly
47 willing to dig deeper, so long as this 1wk-old kid on my lap is asleep...

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Re: [gentoo-user] [yoga13] rtl8723au Alan McKinnon <alan.mckinnon@×××××.com>