On my Levovo T500 Laptop, my wired Gigabit Ethernet is only delivering 100Mb/sec (Megabit), not 1000Mb/sec (Gigabit).
I'm running Debian 10.1.
What I've tried:
- 1) I replaced the CAT6 cable with a new cable. Still 100Mb/sec.
2) I swapped router hardware connections with another computer. The other computer achieved 1000Mb/sec (Gigabit) on the same router port.
3) I booted from an MX-Linux live CD, and achieved 1000Mb/sec (Gigabit).
I'd appreciate any suggestions on how to get Gigabit speed when using Debian 10.1 on this computer.
Below is the Ethernet information from my computer with Debian 10.1 installed.
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* lspci | grep -i ethernet
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network Connection (rev 03)
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* ip link show | grep "state UP"
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
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* ethtool enp0s25
Settings for enp0s25:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 100Mb/s
Duplex: Half
Port: Twisted Pair
PHYAD: 2
Transceiver: internal
Auto-negotiation: off
MDI-X: off (auto)
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
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* ethtool -i enp0s25
driver: e1000e
version: 3.2.6-k
firmware-version: 1.8-3
expansion-rom-version:
bus-info: 0000:00:19.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no