Activity log for bug #1681040

Date Who What changed Old value New value Message
2017-04-08 07:13:06 Markus Paaso bug added bug
2017-04-08 07:13:06 Markus Paaso attachment added Display manager not detecting scaled resolution https://bugs.launchpad.net/bugs/1681040/+attachment/4858025/+files/scaled-laptop-resolution.png
2017-04-08 07:30:10 Brad Figg linux (Ubuntu): status New Incomplete
2017-04-09 13:28:34 Markus Paaso tags apport-collected xenial
2017-04-09 13:28:35 Markus Paaso description Environment: Ubuntu 16.04.2 LTS nvidia-375 I have a laptop screen with resolution 3840x2160 and external display with resolution 3440x1440. I am scaling laptop display to resolution 1920x1080 with command nvidia-settings --attach CurrentMetaMode="DPY-0: nvidia-auto-select @3440x1440 +1920+0 {ViewPortIn=3440x1440, ViewPortOut=3440x1440+0+0}, DPY-3: nvidia-auto-select @1920x1080 +0+0 {ViewPortIn=1920x1080, ViewPortOut=3840x2160+0+0}" Bug: Display manager is not detecting scaled resolution correctly. Please see the attachment. Caused effect: When focus is on laptop display and pressing Alt + Tab the application switcher is not shown in center of laptop display but partly in external display. $ apt-cache policy lightdm lightdm: Installed: 1.18.3-0ubuntu1.1 Candidate: 1.18.3-0ubuntu1.1 Environment: Ubuntu 16.04.2 LTS nvidia-375 I have a laptop screen with resolution 3840x2160 and external display with resolution 3440x1440. I am scaling laptop display to resolution 1920x1080 with command nvidia-settings --attach CurrentMetaMode="DPY-0: nvidia-auto-select @3440x1440 +1920+0 {ViewPortIn=3440x1440, ViewPortOut=3440x1440+0+0}, DPY-3: nvidia-auto-select @1920x1080 +0+0 {ViewPortIn=1920x1080, ViewPortOut=3840x2160+0+0}" Bug: Display manager is not detecting scaled resolution correctly. Please see the attachment. Caused effect: When focus is on laptop display and pressing Alt + Tab the application switcher is not shown in center of laptop display but partly in external display. $ apt-cache policy lightdm lightdm: Installed: 1.18.3-0ubuntu1.1 Candidate: 1.18.3-0ubuntu1.1 --- ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: markus 3264 F.... pulseaudio /dev/snd/controlC0: markus 3264 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes InstallationDate: Installed on 2017-04-07 (2 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP ZBook Studio G3 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-46-generic.efi.signed root=UUID=2b78b572-05a1-4c01-b97d-9c1fea406faf ro quiet splash nomodeset pnpacpi=off vt.handoff=7 ProcVersionSignature: Ubuntu 4.8.0-46.49~16.04.1-generic 4.8.17 RelatedPackageVersions: linux-restricted-modules-4.8.0-46-generic N/A linux-backports-modules-4.8.0-46-generic N/A linux-firmware 1.157.8 Tags: xenial Uname: Linux 4.8.0-46-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/02/2016 dmi.bios.vendor: HP dmi.bios.version: N82 Ver. 01.15 dmi.board.name: 80D4 dmi.board.vendor: HP dmi.board.version: KBC Version 11.67 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrN82Ver.01.15:bd11/02/2016:svnHP:pnHPZBookStudioG3:pvr:rvnHP:rn80D4:rvrKBCVersion11.67:cvnHP:ct10:cvr: dmi.product.name: HP ZBook Studio G3 dmi.sys.vendor: HP
2017-04-09 13:28:36 Markus Paaso attachment added AlsaInfo.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858930/+files/AlsaInfo.txt
2017-04-09 13:28:38 Markus Paaso attachment added CRDA.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858931/+files/CRDA.txt
2017-04-09 13:28:40 Markus Paaso attachment added CurrentDmesg.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858932/+files/CurrentDmesg.txt
2017-04-09 13:28:41 Markus Paaso attachment added IwConfig.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858933/+files/IwConfig.txt
2017-04-09 13:28:43 Markus Paaso attachment added JournalErrors.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858934/+files/JournalErrors.txt
2017-04-09 13:28:44 Markus Paaso attachment added Lspci.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858935/+files/Lspci.txt
2017-04-09 13:28:46 Markus Paaso attachment added ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858936/+files/ProcCpuinfo.txt
2017-04-09 13:28:48 Markus Paaso attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858937/+files/ProcEnviron.txt
2017-04-09 13:28:49 Markus Paaso attachment added ProcInterrupts.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858938/+files/ProcInterrupts.txt
2017-04-09 13:28:51 Markus Paaso attachment added ProcModules.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858939/+files/ProcModules.txt
2017-04-09 13:28:52 Markus Paaso attachment added PulseList.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858940/+files/PulseList.txt
2017-04-09 13:28:53 Markus Paaso attachment added RfKill.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858941/+files/RfKill.txt
2017-04-09 13:28:55 Markus Paaso attachment added UdevDb.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858942/+files/UdevDb.txt
2017-04-09 13:28:57 Markus Paaso attachment added WifiSyslog.txt https://bugs.launchpad.net/bugs/1681040/+attachment/4858943/+files/WifiSyslog.txt
2017-04-09 13:30:12 Markus Paaso linux (Ubuntu): status Incomplete Confirmed
2017-04-09 18:31:24 Markus Paaso affects linux (Ubuntu) lightdm (Ubuntu)
2017-05-04 02:58:50 Robert Ancell affects lightdm (Ubuntu) xorg-server (Ubuntu)
2017-05-04 02:59:19 Robert Ancell affects xorg-server (Ubuntu) unity-control-center (Ubuntu)
2017-05-04 02:59:29 Robert Ancell summary Scaled display resolution is not detected correctly in lightdm display manager Scaled display resolution is not detected correctly