저는 Linux를 처음 접했다는 점부터 말씀드리고 싶습니다(약 2~3주 정도 지났습니다). 나는 하나를 구입했다Maxesla 미니 WiFi 어댑터 1200M 802.11ac 듀얼 밴드 2.4/5GHz AC1200 무선 네트워크 어댑터USB 동글을 설치하고현재 커널에 대해 rtl88x2bu 드라이버가 업데이트되었습니다.드라이버(DKMS 설치를 따랐습니다).
랩톱에서 이더넷 케이블(또는 휴대폰의 Wi-Fi)을 사용할 때 전체 450-500mbps 속도를 얻지만 이 동글을 사용할 때는 약 200mbps입니다. 저는 Kubuntu 18.4 LTS를 사용하고 있으며 내장 Wi-Fi(2.4g)를 비활성화하는 방법을 모르기 때문에 활성화되어 있습니다(차이가 있는지는 모르겠습니다).
미리 감사드립니다!
sudo lshw -클래스 네트워크
*-network
description: Wireless interface
product: QCA9565 / AR9565 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlp1s0
version: 01
serial: 18:cf:5e:35:79:cb
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.18.0-22-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:39 memory:f0c00000-f0c7ffff memory:f0c80000-f0c8ffff *-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 0c
serial: c4:54:44:98:86:bf
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:31 ioport:2000(size=256) memory:f0b00000-f0b00fff memory:f0800000-f0803fff *-network
description: Wireless interface
physical id: 1
bus info: usb@1:1.1
logical name: wlx1cbfce387297
serial: 1c:bf:ce:38:72:97
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl88x2bu ip=192.168.0.159 multicast=yes wireless=IEEE 802.11AC
lsusb
Bus 002 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 06cb:2970 Synaptics, Inc. touchpad
Bus 001 Device 003: ID 04f2:b469 Chicony Electronics Co., Ltd
Bus 001 Device 005: ID 0bda:b812 Realtek Semiconductor Corp.
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 003: ID 04e8:6860 Samsung Electronics Co., Ltd Galaxy (MTP)
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1566
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R3 Graphics]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kabini HDMI/DP Audio
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 156b
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1537
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 11)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39)
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 42)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 02)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:14.7 SD Host controller: Advanced Micro Devices, Inc. [AMD] FCH SD Flash Controller (rev 01)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1580
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1581
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1582
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1583
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1584
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1585
01:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
rfkill 목록 모두
0: acer-wireless: Wireless LAN
Soft blocked: no
Hard blocked: no
1: acer-bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
4: phy2: Wireless LAN
Soft blocked: no
Hard blocked: no
편집 1: iwconfig
wlx1cbfce387297 IEEE 802.11AC ESSID:"Shabana_BETTER" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:5.745 GHz Access Point: B8:EC:A3:31:29:71
Bit Rate:867 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=78/100 Signal level=53/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
enp2s0 no wireless extensions.
lo no wireless extensions.
wlp1s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=17 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
답변1
랩톱에서 이더넷 케이블(또는 휴대폰의 Wi-Fi)을 사용할 때 전체 450-500mbps 속도를 얻지만 이 동글을 사용할 때는 약 200mbps입니다.
그것은매우 작은수신이 매우 좋지 않은 안테나입니다. 저렴한 칩셋을 가지고 있습니다. 나는 실제로놀란이것으로 좋은 속도를 얻을 수 있습니다.
게다가 USB3에 대한 언급도 없어 USB2인 것으로 의심됩니다. USB2의 최대 속도는 480Mb/s입니다. 실제로 USB2 포트에 연결된 기가비트 NIC는 약 200-250Mb/s를 제공하는 경향이 있습니다.
간단히 말해서. 제가 예상했던 것보다 훨씬 더 빠른 속도를 보이고 있습니다. 아마도 해당 장치에서 더 이상 얻을 수 없을 것입니다. USB3와 더 나은 안테나를 갖춘 제품을 구입하세요.
또한 무선은 기껏해야 광고된 속도의 약 절반 정도를 제공합니다. 내 NIC가 867Mb/s를 발표하면 좋은 조건에서는 약 450Mb/s를 얻습니다. 이것은 PCIe의 Intel 7265입니다.