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[Bug 1561943] Re: Stylus coordinates wrong when screen is rotated on Dell Venue 11 Pro 7140


Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.5 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

Once testing of the upstream kernel is complete, please mark this bug as

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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  Stylus coordinates wrong when screen is rotated on Dell Venue 11 Pro

Status in linux package in Ubuntu:

Bug description:
  I am using the pre-release 16.04 Ubuntu Xenial Xerus (development
  branch) with kernel 4.4.0-15-generic on a Dell Venue 11 Pro 7140.
  Touchscreen and Stylus are recognised out of the box:

  xinput --list
  ⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
  ⎜   ↳ Synaptics T Pad V 01.31 Touchpad        	id=9	[slave  pointer  (2)]
  ⎜   ↳ SYNA7500:00 06CB:780E Pen               	id=13	[slave  pointer  (2)]
  ⎜   ↳ SYNA7500:00 06CB:780E                   	id=14	[slave  pointer  (2)]

  When I am manually rotating the screen by 90° using the System
  Settings option (automatic screen rotation does not work), the
  touchscreen and touchpad work as expected, however, the stylus is not
  using the correct coordinates and the cursor is not following the
  stylus position. When I move the stylus left/right, the cursor moves
  up/down, and vice versa.

  I had hoped to get a work around by disabling and re-enabling the
  stylus after rotating the screen using

  xinput --disable "SYNA7500:00 06CB:780E Pen"
  xinput --enable "SYNA7500:00 06CB:780E Pen"

  but this didn't solve the problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-15-generic 4.4.0-15.31 [modified: boot/vmlinuz-4.4.0-15-generic]
  ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
  Uname: Linux 4.4.0-15-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
   /dev/snd/controlC0:  asvin      1800 F.... pulseaudio
   /dev/snd/controlC1:  asvin      1800 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Mar 25 11:21:35 2016
  HibernationDevice: RESUME=UUID=f716048f-ce0e-4825-b3c4-563fa743242a
  InstallationDate: Installed on 2016-03-23 (1 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
  MachineType: Dell Inc. Venue 11 Pro 7140
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic.efi.signed root=UUID=a9cb1c53-fcf1-4691-a246-24b90dd908c6 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-15-generic N/A
   linux-backports-modules-4.4.0-15-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/27/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0XMVMH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd10/27/2015:svnDellInc.:pnVenue11Pro7140:pvr:rvnDellInc.:rn0XMVMH:rvrA00:cvnDellInc.:ct8:cvr:
  dmi.product.name: Venue 11 Pro 7140
  dmi.sys.vendor: Dell Inc.

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