Does it make sense to try the mainline kernel, since the error is
obviously fixed with 18.04? Unfortunately, I also do not know how to try
the mainline kernel. Can I test this with a live image (I do not want to
destroy my production machine)? Is the mainline kernel compatible with
17.10?
--
You
Hello Christopher,
thank you for triaging.
1) No. LAN only cycles the connection when setting the MTU. Setting MTU
to "automatic" (= the default) works fine.
2) I tested with the daily-live-ISO (downloaded at 06/16/2018). With
this version the LAN interface worked without connection cycles -
apport information
** Attachment added: "PciNetwork.txt"
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** Attachment added: "UdevDb.txt"
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** Attachment added: "WifiSyslog.txt"
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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "ProcCpuinfoMinimal.txt"
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** Attachment added: "ProcInterrupts.txt"
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** Attachment added: "NetDevice.wlp3s0.txt"
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** Attachment added: "NetworkManager.conf.txt"
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** Attachment added: "IwConfig.txt"
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** Attachment added: "IpAddr.txt"
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** Attachment added: "CurrentDmesg.txt"
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** Tags added: apport-collected
** Description changed:
With Xubuntu 17.10 the following problem occurs on a Lenovo X230 Laptop:
- Boot from live-ISO
- Click on network icon in title bar and edit LAN-connection
- Change MTU from Auto to 1492
- Connect LAN cable
=>
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