Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1550701 - Ethernet doesn't work after sleep
Summary: Ethernet doesn't work after sleep
Keywords:
Status: CLOSED DUPLICATE of bug 1580079
Alias: None
Product: Fedora
Classification: Fedora
Component: NetworkManager
Version: 28
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Lubomir Rintel
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-03-01 19:52 UTC by Alexander Zaitsev
Modified: 2018-11-25 22:46 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-06-21 08:41:40 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Alexander Zaitsev 2018-03-01 19:52:34 UTC 
Description of problem:
Laptop with Fedora 27 cannot connect via Ethernet to a network after sleep (not hibernation).

Version-Release number of selected component (if applicable):
Fedora 27


How reproducible:
Always

Steps to Reproduce:
1. With connected or disconnected Ethernet cable (in my case doesn't matter) turn on sleep mode on a laptop.
2. Turn off sleep mode.
3. Ooops: Ethernet doesn't work. 

Actual results:
There is chance to get workable Ethernet connection after sleep.

Expected results:
Fedora should be able to establish Ethernet connection after sleep.

Additional info:
Laptop model: Asus K55VJ-SX012D
Fedora 27
KDE Plasma 5.11.5
KDE Frameworks 5.43.0
Qt: 5.9.4

lspci | grep Ethernet: 04:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0a)

uname -r: 4.15.4-300.fc27.x86_64


On Windows 10 all works fine. Ethernet cable is fine (tested on Windows and on another machine).
Comment 1 Stephen Herr 2018-05-26 20:58:24 UTC 
I also have this problem with Fedora 28. Let me know if you need any more troubleshooting information.

$ lspci | grep Ethernet
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
Comment 2 Stephen Herr 2018-05-27 04:54:50 UTC 
A workaround seems to be to remove and reload the r8169 module after a sleep. This can be done automatically by creating a script for systemd to call:

$ sudo cat <<EOF > /usr/lib/systemd/system-sleep/fix_network
#!/bin/sh

case "$1" in
    pre)
        modprobe -r r8169
        ;;
    post)
        modprobe r8169
        ;;
esac
EOF

$ sudo chmod +x /usr/lib/systemd/system-sleep/fix_network

Thanks for the idea goes to Steven Rosenberg at:
http://stevenrosenberg.net/blog/linux/fedora/2015_0928_working_on_my_networking_after_suspend_resume_issue_in_fedora_22
Comment 3 Beniamino Galvani 2018-05-28 07:41:20 UTC 
This looks similar to bug 1580079. Can you please show the output of 'ip l' and 'dmesg' after resume from sleep?
Comment 4 Beniamino Galvani 2018-06-21 08:41:40 UTC 
Closing, please reopen if needed.

*** This bug has been marked as a duplicate of bug 1580079 ***
Comment 5 Alexander Zaitsev 2018-07-08 12:07:18 UTC 
Since 4.17 kernel workaround from Stephen Herr doesn't work and I should restart compute for Ethernet enabling.
Comment 6 John Cooper 2018-07-12 15:01:45 UTC 
I am seeing this for the first time at Fedora 28 in Kernel 4.17. Switch to 4.16 and the ethernet resumes from sleep as expected.

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

Can you please reopen this as the duplicate is old and has been closed anyway.
Comment 7 Licia Leanza 2018-11-25 14:20:10 UTC 
I have the same problem on my:

Sony Vaio Vpcz21c5e
Fedora 29
4.19.2-301.fc29.x86_64
19:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)

I have a workaround that is unplug and plug again the rj45 connector but it's really boring
Comment 8 Licia Leanza 2018-11-25 22:46:04 UTC 
Followup to my previous note:

with kernel 4.18.18-300.fc29.x86_64 the problem doesn't occur.
Note You need to log in before you can comment on or make changes to this bug.