On Mon, 21 May 2018 15:47:20 +0300 =?UTF-8?B?TWF0dGkgUMO2bGzDpA==?=
<m...@iki.fi> wrote:
> Package: debian-installer
> Severity: normal
> Tags: d-i
>
> Dear Maintainer,
>
> booting to Debian Installer fails on a 6th Generation Lenovo ThinkPad
> X1 (type 20KH-006MMX) with the following symptoms:
>
> * Boot from a Debian installation media (mini.iso 2018-05-18 on a USB
> drive). Also tested with Wheezy, Jessie, Stretch and Testing amd64
> ISOs.
>
> * GRUB menu (version 2.02-2) shows options "Install", "Advanced
> options" and "Install with speech synthesis".
>
> * On entering "Install", the screen goes blank. The machine is still
> powered on and the keyboard leds respond to, e.g., the "mute"
> button. Switching to virtual terminals does not help as the screen
> appears dead.
>
> Similar problems with a blank screen have been reported on earlier
> versions of the ThinkPad X1 (see
> https://bbs.archlinux.org/viewtopic.php?id=210007) with workarounds
> involving boot parameters intel_pstate=no_hwp or
> intel_pstate=disable. In this case, this does not help. Also, the bug
> appears on several kernel versions (from 3.16 in Jessie).
>
> Booting to a live environment using debian-live-9.3.0-amd64-gnome.iso
> is not affected by the bug. The live system uses a full 2560x1440
> resolution on a 4.9.0-4-amd64 kernel. However, the "Install" option on
> the same ISO results in a blank screen.
>
>
