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Linux Mint는 어떤 rtl8821ae 드라이버를 사용하며 이를 다른 배포판에 적용하는 방법은 무엇입니까?

tag-icon • tag-icon drivers kernel-modules realtek wlan
Linux Mint는 어떤 rtl8821ae 드라이버를 사용하며 이를 다른 배포판에 적용하는 방법은 무엇입니까?

내 데스크톱 컴퓨터에 rtl8821ae 기반 5GHz WiFi 카드가 있습니다(pci-e TP-Link Archer T4E).

이 데스크탑에 Linux를 설치하여 사용하고 싶습니다. 다양한 인기 배포판(Ubuntu, Fedora, Manjaro 등)을 사용해 보았지만 모두 동일한 문제가 있었습니다: Wi-Fi 속도가 느렸습니다. Google에서 검색하고 GitHub에서 일부 드라이버를 빌드하려고 시도했지만 찾은 드라이버는 rtl8821a용입니다.유(USB 버전), 내 카드는 PCI-e입니다.

거의 포기할 뻔 했지만 Linux Mint Cinnamon을 사용해 보니 마침내 Wi-Fi가 예상대로 최고 속도로 작동했습니다! 그런 다음 Linux Mint가 특별한 드라이버를 사용한다고 가정합니다. 나는 배포판을 자유롭게 선택할 수 있도록 어떤 Linux Mint가 사용하고 있는지 알아내야 한다고 결정했습니다.

나는 여기서 답을 찾았습니다.어떤 Wi-Fi 드라이버가 설치되어 있는지 어떻게 확인하나요?

내 Ubuntu 출력은 다음과 같습니다(Wi-Fi가 매우 느림).

user@ubnt:~$ sudo lshw -class network
[sudo] password for user: 
  *-network                 
       description: Wireless interface
       product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 01
       serial: xx:xx:xx:xx:xx:xx
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8821ae driverversion=5.8.0-48-generic firmware=N/A ip=xx.xx.xx.xx latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:158 ioport:e000(size=256) memory:df400000-df403fff

user@ubnt:~$ lsmod | grep rtl8821ae
rtl8821ae             233472  0
btcoexist             155648  1 rtl8821ae
rtl_pci                28672  1 rtl8821ae
rtlwifi                94208  3 rtl_pci,rtl8821ae,btcoexist
mac80211              905216  3 rtl_pci,rtl8821ae,rtlwifi

user@ubnt:~$ modinfo rtl8821ae
filename:       /lib/modules/5.8.0-49-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko
firmware:       rtlwifi/rtl8821aefw_29.bin
firmware:       rtlwifi/rtl8821aefw.bin
description:    Realtek 8821ae 802.11ac PCI wireless
license:        GPL
author:         Realtek WlanFAE    <[email protected]>
srcversion:     64BDAFD5093CE917B32291C
alias:          pci:v000010ECd00008821sv*sd*bc*sc*i*
alias:          pci:v000010ECd00008812sv*sd*bc*sc*i*
depends:        rtlwifi,rtl_pci,btcoexist,mac80211
retpoline:      Y
intree:         Y
name:           rtl8821ae
vermagic:       5.8.0-49-generic SMP mod_unload modversions 
sig_id:         PKCS#7
signer:         Build time autogenerated kernel key
sig_key:        1A:D5:E6:56:CF:B6:5E:AF:60:74:90:89:34:8C:97:0F:89:36:10:FB
sig_hashalgo:   sha512
signature:      2C:62:21:33:F2:14:BA:C9:6D:A9:71:6F:92:6D:DE:4C:F5:B7:57:C5:
        BE:A2:F1:61:99:31:DE:15:3B:E2:42:41:FA:15:1D:2D:24:6F:6F:C6:
        B8:4B:2F:92:21:F8:D5:B6:E2:6E:9B:42:86:F1:43:CE:FC:DF:87:F8:
        8D:DC:BB:65:A3:5E:7C:42:2C:46:CA:EB:48:59:44:A7:83:36:91:6A:
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        20:ED:1D:D2:F0:FF:F1:F1:06:C3:51:06:20:2F:40:11:E6:12:C4:96:
        1F:C1:C5:58:7D:09:10:C3:17:DE:31:51:2E:14:DE:92:20:40:62:D2:
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        52:E0:77:A6:E6:1A:4A:27:B0:0A:59:EF:EF:28:D4:E3:CE:A9:8F:DD:
        F5:A0:FF:91:02:E6:E4:2E:D9:08:90:F0:AB:E2:67:AA:B1:54:A2:7E:
        8A:77:97:FB:93:1C:85:CC:E5:18:CE:F9:AC:47:9E:8D:D3:2F:9C:11:
        16:38:E6:DC:BA:D6:8C:C7:EA:B9:38:EE:27:00:AE:66:FE:CB:79:E0:
        43:66:2D:5C:88:AE:BD:07:49:08:F2:4E:4D:BF:FE:48:3E:6D:14:3A:
        CC:DE:7D:02:8A:6E:E6:72:69:FB:65:30:36:35:DD:5B:FA:DD:1B:F4:
        B5:F2:56:05:A6:58:C0:31:0A:93:BB:05:F1:B4:5D:0A:32:4A:38:46:
        1B:9F:F9:27:8B:A0:56:CE:14:8B:84:C8:56:7D:24:FD:50:0F:6E:E8:
        E8:5F:9E:7C:C1:6B:50:AB:68:BE:23:3F:27:84:82:B1:64:6C:DF:C5:
        CC:6B:33:7C:B4:5E:1A:8D:61:E1:D9:58:EA:3F:19:DD:C9:92:ED:18:
        FC:A4:96:94:EF:F4:C1:9F:63:E8:E9:83:2B:CF:DC:28:38:F6:86:C4:
        20:7C:C6:8E:F7:64:CE:D9:B0:F1:19:D8:E2:1F:EB:77:3D:24:C3:93:
        23:FC:69:16:DA:27:64:6F:92:88:91:EA:25:FF:BB:F1:30:19:0F:74:
        68:C1:EB:C1:F0:A5:2C:F7:F4:03:30:72:50:28:EB:54:F0:84:F6:17:
        60:27:3F:54:89:E1:25:A8:07:12:AC:0B
parm:           swenc:Set to 1 for software crypto (default 0)
 (bool)
parm:           ips:Set to 0 to not use link power save (default 1)
 (bool)
parm:           swlps:Set to 1 to use SW control power save (default 0)
 (bool)
parm:           fwlps:Set to 1 to use FW control power save (default 1)
 (bool)
parm:           msi:Set to 1 to use MSI interrupts mode (default 1)
 (bool)
parm:           aspm:Set to 1 to enable ASPM (default 1)
 (int)
parm:           debug_level:Set debug level (0-5) (default 0) (int)
parm:           debug_mask:Set debug mask (default 0) (ullong)
parm:           disable_watchdog:Set to 1 to disable the watchdog (default 0)
 (bool)
parm:           int_clear:Set to 0 to disable interrupt clear before set (default 1)
 (bool)

현재 잘 작동하는 Linux Mint의 출력:

mint@mint:~/Desktop$ sudo lshw -class network
  *-network                 
       description: Wireless interface
       product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 01
       serial: xx:xx:xx:xx:xx:xx
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8821ae driverversion=5.4.0-58-generic firmware=N/A ip=xx.xx.xx.xx latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:159 ioport:e000(size=256) memory:df400000-df403fff

mint@mint:~/Desktop$ lsmod | grep rtl8821ae
rtl8821ae             233472  0
btcoexist             155648  1 rtl8821ae
rtl_pci                28672  1 rtl8821ae
rtlwifi                90112  3 rtl_pci,rtl8821ae,btcoexist
mac80211              843776  3 rtl_pci,rtl8821ae,rtlwifi

mint@mint:~$ modinfo rtl8821ae
filename:       /lib/modules/5.4.0-58-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rtl8821ae.ko
firmware:       rtlwifi/rtl8821aefw_29.bin
firmware:       rtlwifi/rtl8821aefw.bin
description:    Realtek 8821ae 802.11ac PCI wireless
license:        GPL
author:         Realtek WlanFAE    <[email protected]>
srcversion:     A8B43BD1DD5C4F8EC9C4F6A
alias:          pci:v000010ECd00008821sv*sd*bc*sc*i*
alias:          pci:v000010ECd00008812sv*sd*bc*sc*i*
depends:        rtlwifi,rtl_pci,btcoexist,mac80211
retpoline:      Y
intree:         Y
name:           rtl8821ae
vermagic:       5.4.0-58-generic SMP mod_unload 
sig_id:         PKCS#7
signer:         Build time autogenerated kernel key
sig_key:        4F:99:95:CB:A3:36:65:3E:1E:5A:30:73:58:12:C3:10:81:02:EA:FF
sig_hashalgo:   sha512
signature:      04:58:B3:93:74:BB:47:4C:44:EC:B9:B4:BF:41:D8:2F:78:10:5E:74:
        CD:E2:93:42:71:D7:48:C7:ED:DA:9C:80:00:BB:DF:99:2A:44:0C:CB:
        BF:79:2E:05:FD:61:CA:E7:3F:5A:C0:5D:1B:78:31:41:88:44:A4:6A:
        82:A8:51:64:AA:12:6F:1A:F2:09:E8:C1:5E:CF:BA:52:2F:8E:1D:DF:
        D9:93:8E:51:EF:4D:7E:8E:2E:D6:B1:DE:3E:05:0C:57:05:3E:3B:70:
        62:F6:01:87:A0:16:41:90:AF:CA:B9:7B:98:C8:DF:E0:2A:74:C1:97:
        DD:9B:23:93:C5:32:28:07:C0:72:52:C6:62:89:90:6C:A3:B2:80:E5:
        DE:E5:78:C5:FF:75:C9:3F:42:53:35:E4:9A:D7:A3:82:0B:BE:B8:90:
        0D:AD:0C:6D:48:A6:40:32:2E:2E:11:9D:55:C5:2A:4D:4F:40:EF:36:
        B2:F7:E5:C0:2E:56:C5:8C:13:27:86:C2:F1:0E:27:0F:9A:64:EE:CA:
        29:B7:A8:56:4D:7B:71:A2:B4:01:FA:1E:DC:7C:3A:B5:32:07:29:EF:
        86:41:94:61:64:17:6B:DD:B8:6D:9B:7C:2D:56:9D:5E:69:7B:A1:A8:
        C5:62:A5:F7:43:2D:49:D7:6A:43:3C:1B:DC:28:74:BF:0E:7E:BD:47:
        41:DF:0C:9E:E0:D3:5E:A9:9C:3C:6A:67:05:57:A7:9A:00:54:07:46:
        AE:53:5B:8F:8F:1C:76:AA:7E:41:FA:23:70:00:4F:BA:59:92:91:A9:
        F7:7B:16:B2:0B:DB:1A:43:A4:00:EF:3A:A7:5D:D0:E9:D0:80:CF:C6:
        77:0F:E7:75:99:C7:80:66:7D:94:E4:88:F1:22:26:69:D5:1E:F1:79:
        C4:14:E8:B9:20:66:9C:72:DD:02:85:EA:A3:51:02:03:97:C5:65:60:
        3E:E7:94:AD:A5:DA:ED:EC:34:BC:2E:41:48:BF:1C:B8:C0:3B:95:39:
        A8:A8:AC:57:3C:95:91:BA:E5:38:A3:82:34:BD:85:CA:71:3D:45:4A:
        4D:D7:13:54:57:9B:7B:BD:67:B2:DE:77:05:60:5D:B9:71:0E:B7:D4:
        45:88:2D:F8:0C:FD:20:EF:A8:AE:51:B0:25:5F:E6:85:36:24:C0:10:
        A9:49:EA:05:BD:27:C6:01:1D:83:48:03:F5:B1:08:DA:86:0F:F8:68:
        BB:7E:6D:01:76:36:D1:EE:B2:F2:72:D2:9F:E6:12:E4:77:DF:5A:1C:
        E4:9F:3E:14:62:DF:8F:D5:2A:A6:04:88:39:07:6E:BB:78:5A:74:2B:
        F5:D3:70:56:2F:D1:09:2C:B7:48:88:FF
parm:           swenc:Set to 1 for software crypto (default 0)
 (bool)
parm:           ips:Set to 0 to not use link power save (default 1)
 (bool)
parm:           swlps:Set to 1 to use SW control power save (default 0)
 (bool)
parm:           fwlps:Set to 1 to use FW control power save (default 1)
 (bool)
parm:           msi:Set to 1 to use MSI interrupts mode (default 1)
 (bool)
parm:           aspm:Set to 1 to enable ASPM (default 1)
 (int)
parm:           debug_level:Set debug level (0-5) (default 0) (int)
parm:           debug_mask:Set debug mask (default 0) (ullong)
parm:           disable_watchdog:Set to 1 to disable the watchdog (default 0)
 (bool)
parm:           int_clear:Set to 0 to disable interrupt clear before set (default 1)
 (bool)

드라이버 이름이 일치하는 것 같습니다. 드라이버 버전이 나에게 단서를 주었는데, 그것은 커널의 드라이버였습니다. Ubuntu의 드라이버 모듈 크기는 lsmod(에 따라) 동일하고 드라이버 버전은 더 크지만 Mint를 제외한 모든 배포판에서는 왜 그렇게 느립니까? 차이점을 확인하기 위해 또 무엇을 확인할 수 있으며, 다른 배포판에서 빠른 Wi-Fi를 활성화하려면 어떻게 해야 합니까? 이제 Linux Mint를 사용하면 이것이 가능하다고 확신합니다.

UPD: modinfo출력이 추가되었습니다. srcversion(예상대로) 다릅니다 . Linux Mint 커널/드라이버 버전이 이전 버전입니다. 이것이 최신 Realtek 드라이버/커널의 회귀인 경우 버그 보고서를 제출하기에 가장 좋은 곳은 어디입니까?

UPD2: Linux 커널을 5.4에서 5.8로 업데이트하면 Wi-Fi 속도가 느려집니다. 커널 버그를 제출해야 할 것 같습니다. 하지만 그 전에 최신 안정 커널(5.11)에 문제가 있는지 확인하고 싶습니다.

답변1

Wi-Fi를 확인하고 MTU사용하세요.

ip link

또한 WiFi 인터페이스의 이름도 기록해 두십시오.

(최대 전송 단위 MTU)는 단일 네트워크 전송에서 보낼 수 있는 가장 큰 패킷의 크기입니다. 패킷이 MTU링크의 용량을 초과하는 경우 데이터는 여러 패킷으로 분할(조각화)되어야 합니다. 이러한 여러 패킷은 링크를 통해 전송되고, 수신되고, 확인되고, 원격 끝에서 재조립되어야 합니다. 링크가 잘못 구성되어 전송하는 모든 패킷을 조각화해야 하는 경우 실제 데이터 전송 속도가 떨어집니다.

이더넷(유선) 네트워크는 MTU1500바이트를 사용합니다.

WiFi는 패킷당 WiFi의 추가 오버헤드(8바이트 PPPoE 헤더)로 인해 MTU1492를 사용합니다.

MTUDHCP 서버를 설정하여 라우터 구성을 확인해야 합니다 .

직접 설정할 수 있습니다 MTU(재부팅 후에도 설정이 유지되지 않음).

ip link set dev name mtu 1492

여기서 "name"은 위의 인터페이스 이름입니다.

예는 다음과 같습니다.

walt@squid:~(0)$ ip link
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: enp63s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:24:21:7f:e5:1c brd ff:ff:ff:ff:ff:ff
3: wlxf46d04b1790f: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 1000
    link/ether f4:6d:04:b1:79:0f brd ff:ff:ff:ff:ff:ff
walt@squid:~(0)$   sudo ip link set dev wlxf46d04b1790f mtu 1492
[sudo] password for walt: 
walt@squid:~(0)$ ip link
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: enp63s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:24:21:7f:e5:1c brd ff:ff:ff:ff:ff:ff
3: wlxf46d04b1790f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1492 qdisc mq state UP mode DORMANT group default qlen 1000
    link/ether f4:6d:04:b1:79:0f brd ff:ff:ff:ff:ff:ff

내 WiFi "인터페이스 이름"은 " wlxf46d04b1790f"입니다.

관련 정보