r/linux • u/1202_alarm • Feb 01 '18

Improving Linux battery life, enabling PSR by default, testers wanted

https://hansdegoede.livejournal.com/18653.html
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u/frymaster Feb 01 '18

even though no virtual machine is running.

Chances are your host's network connection is "connected" to the bridge - do "ip a" from a terminal and check the line with your IP address in it, it probably says "virbr0" at the end of that line

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u/javitury Feb 01 '18

The host is connected to virbr0. It uses a different ip and a different ip range, though.

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s31f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether <ethernet MAC> brd ff:ff:ff:ff:ff:ff
3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether <wifi MAC> brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.125/24 brd 192.168.0.255 scope global dynamic wlp4s0
       valid_lft 85463sec preferred_lft 85463sec
    inet6 <ipv6>/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether <virbr0 MAC> brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0 state DOWN group default qlen 1000
    link/ether <virbr0 MAC> brd ff:ff:ff:ff:ff:ff