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Message #157855
[Bug 1535123] Re: Touchscreen location incorrect after changing resolution using unity-control-center with dual-display setup
David, thank you for reporting this and helping make Ubuntu better.
However, your crash report is missing.
Please follow these instructions to have apport report a new bug about your crash that can be dealt with by the automatic retracer. First, execute at a terminal:
cd /var/crash && sudo rm * ; sudo apt-get update && sudo apt-get -y dist-upgrade && sudo service apport start force_start=1
If you are running the Ubuntu Stable Release you might need to enable apport in /etc/default/apport and restart. Now reproduce the crash, then open a terminal, navigate to your /var/crash directory and file your report with:
sudo ubuntu-bug /var/crash/_my_crash_report.crash
where _my_crash_report.crash is the crash you would like to report. By
default, this sends the crash to the Ubuntu Error Tracker
infrastructure, which is different than Launchpad. For more on this,
please see https://wiki.ubuntu.com/ErrorTracker .
However, if after doing this you would still like to have a crash report posted to Launchpad, for example to ease triage and add others to your report, one would need to open the following file via a terminal:
sudo nano /etc/apport/crashdb.conf
and comment out the line:
'problem_types': ['Bug', 'Package'],
by changing it to:
# 'problem_types': ['Bug', 'Package'],
Save, close, and file the crash report via:
sudo ubuntu-bug /var/crash/_my_crash_report.crash
However, this report is being closed since the process outlined above
will deal with this issue more efficiently.
Also, please do not attach your crash report manually to this report and
reopen it.
Thank you for your understanding.
Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs
** Package changed: xorg (Ubuntu) => unity-settings-daemon (Ubuntu)
** Changed in: unity-settings-daemon (Ubuntu)
Importance: Medium => Undecided
** Changed in: unity-settings-daemon (Ubuntu)
Status: Incomplete => Invalid
--
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https://bugs.launchpad.net/bugs/1535123
Title:
Touchscreen location incorrect after changing resolution using unity-
control-center with dual-display setup
Status in unity-settings-daemon package in Ubuntu:
Invalid
Bug description:
I have a touchscreen laptop with external display connected. Both
support maximum resolution of 4k (3840x2160). The laptop screen is on
the left, external display on the right.
After initial boot from daily xenial live cd 2016-01-17, both screens
are at the maximum resolution. When I touch the laptop screen, the
cursor correctly shows my touch position.
Using unity-control-center, when I set the resolution of the laptop
display to 1920x1080, the screen blanks momentarily and apport reports
that Ubuntu has experienced an internal error. The resolution reverts
to 3820x2160 on both screens. I try again and the screen resolution
changes properly. I submitted the report through apport several
minutes ago, but I don't know how to link it here and I'm not sure
it's related.
After the resolution change, the laptop display on the left is
1920x1080 and the monitor display on the right is 3840x2160. Touches
on the left are scaled to the entire width of the desktop, rather than
under my finger.
Reverting the resolution to 3840x2160 on both monitors through unity-
control-center, the touches are still scaled to the whole desktop. In
other words, touches on the right side of the laptop display register
on the touchless monitor.
When I log out, the touches are correct on the login screen. When I
log back in as the ubuntu user with both resolutions at 3820x2160, the
touch positions are correct.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+12ubuntu1
ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
Uname: Linux 4.3.0-5-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.19.3-0ubuntu3
Architecture: amd64
CasperVersion: 1.366
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Sun Jan 17 20:12:52 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Device [8086:191b] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Samsung Electronics Co Ltd Device [144d:c12b]
Subsystem: Samsung Electronics Co Ltd Device [144d:c12b]
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160117)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 940Z5L
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --- cdrom-detect/try-usb=true noprompt persistent
SourcePackage: xorg
Symptom: display
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/20/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P04AFC.084.151020.SH
dmi.board.asset.tag: No Asset Tag
dmi.board.name: NP940Z5L-X01US
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: SGL8554A1H-C01-G001-S0001+10.0.10240
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP04AFC.084.151020.SH:bd10/20/2015:svnSAMSUNGELECTRONICSCO.,LTD.:pn940Z5L:pvrP04AFC:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP940Z5L-X01US:rvrSGL8554A1H-C01-G001-S0001+10.0.10240:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
dmi.product.name: 940Z5L
dmi.product.version: P04AFC
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.12.2+16.04.20151211-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.66-2
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.8-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.8-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20151217-1~exp1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Sun Jan 17 20:10:41 2016
xserver.configfile: default
xserver.errors: systemd-logind: failed to get session: PID 2978 does not belong to any known session
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 16714
vendor SDC
xserver.version: 2:1.17.3-2ubuntu2
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References