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I'm trying to install arch linux in a machine with a USB wireless TP-Link WN-722N:
https://www.tp-link.com/en/home-network … tl-wn722n/
When I run "ip link" command I get 4 entries:
lo
enp4s0
enp5s0
wlan0
When I run the command:
ip link set wlan0 upI get no errors, but wlan0 is still down.
Running "dmesg | grep usbcore" I get:
registered new interface device r8188euAlso running dmesg after I connect the adapter gives this output:
Product: 002.11n NIC
Manufacturer: Realtek
Serial Number: 00E04C00001
Version info: CHIP_8100E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)Any help what to do next? Is possible to install arch with this wifi adapter with installation media?
Last edited by zaxdan69 (2020-10-09 07:21:01)
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Define still down with output that you assume it says that it still down...
Are you unable to use IWD to connect to your AP?
The installation guide does not order you to do ‘ip yada up’, are you following the official guide?
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It isn't easy to transfer output of everything because the machine is not in the same place I'm writing from. The "ip link" command list the founded intefraces and some info for them included status DOWN/UP. On this machine the output is this for example:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether d0:50:99:94:e9:d9 brd ff:ff:ff:ff:ff:ffOn installation machine I have also a "wlan0" entry with "state DOWN". After I run "ip link set wlan0 up" I don't get any error but the output from "ip link" command doesn't change and still has "state DOWN" as before.
I'm trying to follow the installation guide, in which "ip link" is the first command to find if Network inteface is listed and enabled. In my case seems that isn't enable.
I also tried iwd but "device list" has no devices, so seems that doesn't find any device and cannot proceed to scan for networks.
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Closes thing: https://bbs.archlinux.org/viewtopic.php?id=154337
Beware, it’s ancient
Note: I have terrible luck with realtek on linux, one of my HP cluckboxes haves one M.2 WiFi of realtek whose firmware is just garbage.
Another one, less ancient:
https://bbs.archlinux.org/viewtopic.php?id=219909
Or just follow the Wiki:
https://wiki.archlinux.org/index.php/Ne … ss#Realtek
Edit: whops, this one truly points to realtek now
Last edited by GaKu999 (2020-10-09 08:00:41)
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I just now connected it on this machine(also with arch linux installed) and I get this output from dmesg:
New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Παρ Οκτ 9 11:08:36 2020] usb 1-4: Product: 802.11n NIC
[Παρ Οκτ 9 11:08:36 2020] usb 1-4: Manufacturer: Realtek
[Παρ Οκτ 9 11:08:36 2020] usb 1-4: SerialNumber: 00E04C0001
[Παρ Οκτ 9 11:08:36 2020] lib80211: common routines for IEEE802.11 drivers
[Παρ Οκτ 9 11:08:36 2020] lib80211_crypt: registered algorithm 'NULL'
[Παρ Οκτ 9 11:08:36 2020] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
[Παρ Οκτ 9 11:08:36 2020] Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
[Παρ Οκτ 9 11:08:37 2020] usbcore: registered new interface driver r8188eu
[Παρ Οκτ 9 11:08:37 2020] r8188eu 1-4:1.0 wlp0s18f2u4: renamed from wlan0
[Παρ Οκτ 9 11:08:37 2020] MAC Address = d0:37:45:08:a6:78
[Παρ Οκτ 9 11:09:07 2020] usb 4-3.4: reset high-speed USB device number 8 using ehci-pci
[Παρ Οκτ 9 11:09:08 2020] sd 8:0:0:0: [sdf] 30497664 512-byte logical blocks: (15.6 GB/14.5 GiB)So, it seems that uses "r8188eu" driver, but here is also renamed the user interface. In installation machine this doesn't happen. I downloaded the latest iso(I had one from August) and I' ll try with this too.
Last edited by zaxdan69 (2020-10-09 08:22:32)
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The rename happens with IWD, since it expects for reasons to use that naming.
What you see there is the default.
Note that archiso uses IWD now as the default networking took, or linker
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Yes, I used IWD on installation machine.
I just tried on this system with this adapter connected, but I have the same problem. So it isn't installation' s problem only. Here I have a cable connection and I don't use a networkManager. I installed IWD package and I enabled the service as WIKI suggests. The problem is the same here. IWD "device list" command doesn't find the device.
I also tried with the name I get from "ip link", but it still doesn't find it:
station wlp0s18f2u4 scan
Device wlp0s18f2u4 not foundBecause this device works fine with some other distros I tried(manjaro, opensuse), something missing here.
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The "ip link" command list the founded intefraces and some info for them included status DOWN/UP.
wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP <-THIS "UP" indicated the wlan0 state not the other DOWN.
Is there any soft/hardware button?
$ rfkill list
Soft blocked: ?
Hard blocked: ?Last edited by solskog (2020-10-09 08:54:45)
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So, then is UP. But "iwctl device list doesn't find any device", so I cannot connect.
EDIT:
rfkill listdoesn't give anything about the adapter. I get output only for a bluetooth adapter I have.
Last edited by zaxdan69 (2020-10-09 09:06:27)
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on archiso there is also iw:
# iw devcan you see it from:
# lsusb -vtLast edited by solskog (2020-10-09 09:23:48)
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"iw dev"
doesn't output anything as well
"lsusb -vt":
Port 4: Dev 11. If 0. Class Vendor Specific Class, Driver=r8100eu, 480M
ID 2357:010c TP-Link TL-WN722N v2/v3 [Realtek RTL8100EUS]Last edited by zaxdan69 (2020-10-09 10:04:52)
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By using connman in installed archlinux, the adapter connects and works without problems, but iw and iwd still not find any device.
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After more searching I couldn't find a way to enable and use wifi adapter through archiso's tools. So, I decided to use archiso to create a custom iso. I just edit the packages.x86_64 file in archiso's releng profile directory and I added the "connman" package.
Using this iso I've managed to connect with the wifi adapter through connman without any problem and now finally I'm installing archlinux.
It should be nice if connman added to archiso, since the present tools have problem with some wifi adapters.
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