Yes, hang re-occurs regardless of whether the device was plugged in at
boot or not.
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https://bugs.launchpad.net/bugs/1820811
Title:
Thunderbolt3 dock freezes X on hotplug
Public bug reported:
This bug is very similar to https://bugs.launchpad.net/dell-
sputnik/+bug/1752165 and has the same steps to reproduce, but it's not
related to nvidia drivers. I have Lenovo Thinkpad T480s connected to a
ThinkPad Thunderbolt 3 Dock. I have installed 4.15.0.46, 4.18.0.16
apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247515/+files/Lsusb.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247511/+files/CRDA.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247524/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247521/+files/PulseList.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247519/+files/ProcInterrupts.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247522/+files/RfKill.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247514/+files/Lspci.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247523/+files/UdevDb.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247517/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247520/+files/ProcModules.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247516/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247512/+files/CurrentDmesg.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247518/+files/ProcEnviron.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1820811/+attachment/5247513/+files/IwConfig.txt
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apport information
** Tags added: apport-collected bionic
** Description changed:
- This bug is very similar to https://bugs.launchpad.net/dell-
- sputnik/+bug/1752165 and has the same steps to reproduce, but it's not
- related to nvidia drivers. I have Lenovo Thinkpad T480s connected to a
-
> With the affected kernel versions, does the hang still occur if the
dock is connected before booting?
No, the hang only occurs when I plug the cable to my laptop in running
OS.
> That is, with your computer shut off, plug in the dock and then boot
up. Does the computer hang after booting?
No,
It seems 4.18.0-18 fixes the issue.
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Title:
Thunderbolt3 dock freezes X on hotplug when used with external
displays
Status in
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