Software Updater input events go to the wrong control

Bug #1640717 reported by Andreas Fritiofson on 2016-11-10
This bug affects 7 people
Affects Status Importance Assigned to Milestone
update-manager (Ubuntu)

Bug Description

When Software Updater starts, the "Details of updates" section only covers half the window's height, even though the "Technical description" section is collapsed. Refer to attached image #1.

If I expand then collapse "Technical description", the "Details of updates section" restores to normal look, as in attached image #2. However, the lower part of the section (below the selected row in image) is not functional and does not respond to click, scroll or any other mouse activity.

Input events instead go to the hidden "Technical description" section, for example you can change from its "Description" tab to its "Changes" tab by clicking on the checkbox two rows down from the selected one in the "Details of updates" section. Also the mouse pointer changes to a text pointer in the area that would have been covered by the text box if the "Technical description" section had been expanded (as in image #3).

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: update-manager 1:16.10.7
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Nov 10 08:22:32 2016
ExecutablePath: /usr/bin/update-manager
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'593'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'484'
 b'com.ubuntu.update-manager' b'launch-time' b'1478762256'
InstallationDate: Installed on 2015-03-24 (596 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
InterpreterPath: /usr/bin/python3.5
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to yakkety on 2016-11-02 (7 days ago)

Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in update-manager (Ubuntu):
status: New → Confirmed
Ubfan (ubfan1) wrote :

Ubuntu 16.10, plain install on UEFI machine, Nvidia Quadro 1000M running nouveau driver displays this problem. In addition, when the install is requested, both the downloads output and the subsequent terminal/text output are reduced to just one line, regardless of the size of the window -- resizing does not affect the one line (it does not expand). See 838973 askubuntu question (unanswered) for screen shots of this problem.

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