kernel-packages team mailing list archive

[Chih-Hsyuan Ho <chih.ho@xxxxxxxxxxxxx>]

With Ubuntu 16.04 daily build (2/25) and kernel: 4.4.0-7-generic #22 ,
tried the following kernel options:

1) acpi=off => OK
2) intel_pstate=disable => Fail to boot
3) intel_idle.max_cstate=0 => OK
4) iommu=off => Fail to boot

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https://bugs.launchpad.net/bugs/1550194

Title:
  System fail to boot with Ubuntu 16.04

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Skylake systems fail to boot with Ubuntu 16.04
  CPU: Intel i5-6440EQ, i7-6820EQ
  Kernel version: 4.4.0-8
  Mainline kernel tested fail: 4.3.x, 4.4.x, 4.5.x
  Mainline kernel tested pass: In progress....

  Reproduce steps:
  1. Boot from the bootable USB drive (in UEFI mode)
  2. Select "Install Ubuntu" from the boot menu

  Expected Behavior:
  System completes installation successfully.

  Actual Behavior:
  Blank screen right after the grub option is made.

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