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** Changed in: gnome-shell (Ubuntu)
       Status: Confirmed => Won't Fix

** Changed in: iio-sensor-proxy (Ubuntu)
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1797174

Title:
  [Dell XPS 15 9575] gnome-shell unrotates immediately after rotating

Status in gnome-shell package in Ubuntu:
  Won't Fix
Status in iio-sensor-proxy package in Ubuntu:
  Won't Fix

Bug description:
  on a dell xps 15 2-in-1 (model 9575), I've enabled iio-sensor-proxy
  functionality by doing:

  modprobe intel-ish-ipc
  echo "8086 a135" > /sys/bus/pci/drivers/intel_ish_ipc/new_id

  
  This makes `monitor-sensor` display rotation events, and gnome-shell 
auto-rotate the screen upon receiving them.  However, immediately after 
rotating, the screen rotates back to its normal orientation (unless I quickly 
lock rotation), displaying the following in journalctl:

  Oct 10 09:06:19 taplop gnome-shell[2616]: Failed to apply DRM plane transform 
1: Invalid argument
  Oct 10 09:06:20 taplop kernel: [drm] PCIE GART of 256M enabled (table at 
0x000000F400000000).
  Oct 10 09:06:20 taplop kernel: [drm] UVD and UVD ENC initialized successfully.
  Oct 10 09:06:20 taplop kernel: [drm] VCE initialized successfully.
  Oct 10 09:06:27 taplop kernel: amdgpu 0000:01:00.0: GPU pci config reset

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: gnome-shell 3.30.0-3ubuntu1
  ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7
  Uname: Linux 4.18.0-8-generic x86_64
  ApportVersion: 2.20.10-0ubuntu11
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Wed Oct 10 09:06:40 2018
  DisplayManager: gdm3
  InstallationDate: Installed on 2018-09-26 (14 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 
(20180725)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-shell
  UpgradeStatus: Upgraded to cosmic on 2018-09-28 (11 days ago)

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