You are not logged in.

#1 2017-04-30 01:20:42

Lans9831
Member
Registered: 2017-03-07
Posts: 6

Extremely slow Internet speed (RTL8723be)

Basically what title says, my Internet speed on Arch Linux is extremely slow, on Windows I got 20~30 Mbps whereas in Arch Linux  I got 1~2 Mbps (WiFi)
Literally I'm on the same room where my router is, and got that speed.

I already know that RTL8723be has serious problems (indeed any Realtek Chipset)
I installed rtlwifi_new-dkms, modifying PKGBUILD to install from rock.new_btcoex branch from github repository, like suggested on comments.
After that I didn't realize better speed (keept on 1~2 Mbps, again literally on the same room where my router is).
So I uninstalled rtlwifi_new-dkms, I continue researching, found that editing options for rtl8723be module, can improve performance.

➔ cat /etc/modprobe.d/rtl8723be.conf 
options rtl8723be fwlps=N ips=N ant_sel=2 disable_watchdog=1

ant_sel: Already tried 1 and 2 values, still same speed

Some useful output, tell me if you need more information, I don't know what else to do.

➔ lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b)
00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 0b)
00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 [8086:9c3a] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 [8086:9c14] (rev e4)
00:1c.3 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 4 [8086:9c16] (rev e4)
00:1c.4 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 5 [8086:9c18] (rev e4)
00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 [8086:9c26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller [8086:9c43] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] (rev 04)
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
03:00.0 3D controller [0302]: NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] [10de:1140] (rev a1)

Last edited by Lans9831 (2017-04-30 01:23:15)

Offline

#2 2017-04-30 06:54:01

seth
Member
Registered: 2012-09-03
Posts: 50,009

Re: Extremely slow Internet speed (RTL8723be)

"ips=0 fwlps=0 swlps=0" or ensure the N is correctly considered as "0"

systool -vm rtl8723be

You may also try passing "swenc=1" to use software encryption.
Also check the condition

iw dev <devname> station dump

and try to ping the router to obtain latency and stats on package losses.

Oh, and in case: disable windows fastboot (in case it keeps the device in a crap state)

Last edited by seth (2017-04-30 06:56:25)

Offline

Board footer

Powered by FluxBB