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: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". 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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1561943 Title: Stylus coordinates wrong when screen is rotated on Dell Venue 11 Pro 7140 Status in linux package in Ubuntu: Incomplete 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 AudioDevicesInUse: USER PID ACCESS COMMAND /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 RelatedPackageVersions: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1561943/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
