Greetings,
I'm running bookworm and I have an odd issue with a new desktop
computer. Every time I boot, the Ethernet controller will repeatedly
turn off and on again for several minutes. Here is a snippet of what
this looks like in dmesg:
[ 273.008517] r8169 0000:05:00.0 eno1: Link is Down
[ 276.628821] r8169 0000:05:00.0 eno1: Link is Up - 1Gbps/Full - flow
control rx/tx
[ 277.681025] r8169 0000:05:00.0 eno1: Link is Down
[ 281.320201] r8169 0000:05:00.0 eno1: Link is Up - 1Gbps/Full - flow
control rx/tx
[ 282.370330] r8169 0000:05:00.0 eno1: Link is Down
[ 286.273750] r8169 0000:05:00.0 eno1: Link is Up - 1Gbps/Full - flow
control rx/tx
And a snippet of the syslog:
2022-11-28T18:59:26.477907-08:00 cockpit kernel: [ 167.861718] r8169
0000:05:00.0 eno1: Link is Up - 1Gbps/Full - flow control rx/tx
2022-11-28T18:59:27.375761-08:00 cockpit systemd-timesyncd[933]:
Contacted time server [2600:2600::199]:123 (2.debian.pool.ntp.org).
2022-11-28T18:59:27.525388-08:00 cockpit kernel: [ 168.912726] r8169
0000:05:00.0 eno1: Link is Down
2022-11-28T18:59:29.210368-08:00 cockpit dhclient[4484]: DHCPDISCOVER on
eno1 to 255.255.255.255 port 67 interval 17
2022-11-28T18:59:31.139410-08:00 cockpit NetworkManager[1035]: <info>
[1669690771.1391] device (eno1): carrier: link connected
2022-11-28T18:59:31.141405-08:00 cockpit kernel: [ 172.526366] r8169
0000:05:00.0 eno1: Link is Up - 1Gbps/Full - flow control rx/tx
2022-11-28T18:59:32.189388-08:00 cockpit kernel: [ 173.576860] r8169
0000:05:00.0 eno1: Link is Down
2022-11-28T18:59:35.951220-08:00 cockpit NetworkManager[1035]: <info>
[1669690775.9509] device (eno1): carrier: link connected
2022-11-28T18:59:35.953645-08:00 cockpit kernel: [ 177.337818] r8169
0000:05:00.0 eno1: Link is Up - 1Gbps/Full - flow control rx/tx
2022-11-28T18:59:37.005374-08:00 cockpit kernel: [ 178.392000] r8169
0000:05:00.0 eno1: Link is Down
The problem mysteriously vanishes about 5 minutes after booting. So far,
nothing seems to mitigate the issue, e.g. I've tried bringing eno1 down
and up again.
I'm guessing this is a hardware issue, but there are no errors in dmesg.
Maybe it's NetworkManager-related?
Relevant hardware info:
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125
2.5GbE Controller (rev 05)
06:00.0 Network controller: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B550 AORUS ELITE AX V2
Version: Default string
Serial Number: Default string
UUID: 035e02d8-04d3-058e-6a06-550700080009
Wake-up Type: Power Switch
SKU Number: Default string
Family: B550 MB
Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: American Megatrends International, LLC.
Version: F16d
Release Date: 07/20/2022
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 32 MB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported
Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
5.25"/360 kB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 5.17
Any ideas for looking into this will be appreciated. Thank you!
Matthew
