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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1871562
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1871562
Title:
[ThinkPad P1 and ThinkPad X1 Extreme] System got hang during the first
boot.
Status in linux package in Ubuntu:
Incomplete
Bug description:
[Summary]
System got hang during the first boot.
[Steps to reproduce]
1. Install Ubuntu 20.04 beta image on ThinkPad X1 Extreme or P1
2. Unplug USB Live CD
3. Boot system and verify the result
[Expected result]
System boots up smoothly
[Actual result]
System got hang during the first boot.
[Failure rate]
100%
[Note]
The ThinkPad P1 and ThinkPad X1 Extreme are I+N configs
Even though system installed successfully in 'Safe mode', when user want to
boot it up, system will got hang always.
There is a workaround:
1. Install Ubuntu 20.04 beta image on ThinkPad X1 Extreme or P1
2. Unplug USB Live CD
3. Boot system and enter grub
4. Add the kernel parameter 'nomodeset' and press 'Ctrl+X'
5. After log in successfully, install nvidia display driver
6. After the driver installed, reboot system.
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