我試圖讓我的乙太網路連接在我的 Ubuntu 筆記型電腦上工作，但由於某種原因 NIC 拒絕工作。
我已經嘗試了我所知道的一切，我在互聯網上找到的一切，但它仍然不起作用。
這是我嘗試過的清單：
- 用於
ethtool根據Supported link mode網路卡以及Advertised link mode交換器和路由器的速度更改速度和雙工。 - 使用三種不同的乙太網路電纜連接到我的交換器並更改了交換器上的連接埠。所有其他連接埠和電纜都可以工作。
sudo ifconfig <interface> up，sudo ip link set <interface> up但沒有變化。
以下是dmesg --follow我運行這些命令時不斷返回的內容：
[ 916.193910] r8169 0000:01:00.0 enp1s0: Link is Up - 100Mbps/Full - flow control off
[ 917.082174] r8169 0000:01:00.0 enp1s0: Link is Down
[ 918.678983] r8169 0000:01:00.0 enp1s0: Link is Up - 100Mbps/Full - flow control off
[ 919.564996] r8169 0000:01:00.0 enp1s0: Link is Down
[ 923.672566] r8169 0000:01:00.0 enp1s0: Link is Up - 100Mbps/Full - flow control off
[ 924.556212] r8169 0000:01:00.0 enp1s0: Link is Down
當我更改配置時，ethtool它只是說Link is Down並且不再執行任何操作，尤其是當我運行autoneg off.
以下是sudo ethtool <interface>任何修改之前返回的內容：
Settings for enp1s0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 100baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Speed: Unknown!
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: pumbg
Wake-on: d
Link detected: no
無論我設定什麼速度或雙工，都不會改變它所說的任何內容Link is Down。
編輯
我嘗試安裝 r8168-dkms 軟體包，但它是這樣說的：
sudo dpkg -i r8168-dkms_8.048.00-1_all.deb
Selecting previously unselected package r8168-dkms.
(Reading database ... 295124 files and directories currently installed.)
Preparing to unpack r8168-dkms_8.048.00-1_all.deb ...
Unpacking r8168-dkms (8.048.00-1) ...
Setting up r8168-dkms (8.048.00-1) ...
Loading new r8168-8.048.00 DKMS files...
Building for 5.15.0-56-generic
Building initial module for 5.15.0-56-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/r8168-dkms.0.crash'
Error! Bad return status for module build on kernel: 5.15.0-56-generic (x86_64)
Consult /var/lib/dkms/r8168/8.048.00/build/make.log for more information.
dpkg: error processing package r8168-dkms (--install):
installed r8168-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
r8168-dkms
輸出lspci：
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) I/O Memory Management Unit
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics] (rev da)
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15b3
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Processor Root Port
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Host Bridge
00:08.0 Encryption controller: Advanced Micro Devices, Inc. [AMD] Carrizo Platform Security Processor
00:09.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Carrizo Audio Dummy Host Bridge
00:09.2 Audio device: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 60h-6fh) Audio Controller
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 20)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 4b)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 49)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 4b)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney HT Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney Address Maps
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney DRAM Configuration
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney Miscellaneous Configuration
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney PM Configuration
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Stoney NB Performance Monitor
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter
答案1
根據 ethtool 輸出，它是一個 100mbps 的卡，因此 r8168 是錯誤的驅動程式。匹配的供應商驅動程式是 r8101。最好檢查一下韌體是否已載入（如果你的晶片版本需要韌體）。有用的是： dmesg | grep r8169