Turning on input event printing[1], when using Ctrl+Alt+F1 switching
away from unity8, I see a continuous stream of input events being sent
from Mir to Unity8, while on VT1:
[2017-03-23:12:36:53.419] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0x1008ff2b). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.428] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0xffe9). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.444] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0xffe3). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.470] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0x1008ff2b). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.480] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0xffe9). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.495] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0xffe3). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.521] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0x1008ff2b). Dispatching to
ShellView(0x558b6b947ea0)
[2017-03-23:12:36:53.531] qtmir.mir.input: Received
MirKeyboardEvent(action=repeat,key_code=0xffe9). Dispatching to
ShellView(0x558b6b947ea0)
and actually, switching back to Unity8's VT, the key repeat events don't stop!
Adding Mir to the bug
[1] qdbus com.canonical.Unity8 /com/canonical/Unity8/Debugging
com.canonical.Unity8.Debugging.SetLoggingFilterRules "qtmir.mir.input=true"
** Also affects: mir (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Unity8 spins for a long time after being on an inactive vt
+ Mir sending key repeat events continually to nested shell after VT switch
(causes Unity8 lockup for a while)
** Changed in: unity8 (Ubuntu)
Status: Triaged => Invalid
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https://bugs.launchpad.net/bugs/1675357
Title:
Mir sending key repeat events continually to nested shell after VT
switch (causes Unity8 lockup for a while)
Status in Canonical System Image:
Triaged
Status in mir package in Ubuntu:
New
Status in qtmir package in Ubuntu:
New
Status in unity8 package in Ubuntu:
Invalid
Bug description:
Steps:
* log in to unity8
* Ctrl+Alt+F* to a different vt, or log in to a different user session
* go back to the unity8 vt
Expected:
* session is locked, but working
Current:
* unity8 starts spinning for a time proportional to the period it was inactive
* if it was inactive long enough, it doesn't seem to recover at all
It seems it's "catching up" in some way, maybe with input, maybe frames.
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: unity8 8.15+17.04.20170321-0ubuntu1 [origin:
LP-PPA-ci-train-ppa-service-2555]
ProcVersionSignature: Ubuntu 4.10.0-13.15-generic 4.10.1
Uname: Linux 4.10.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity:Unity7
Date: Thu Mar 23 11:36:39 2017
InstallationDate: Installed on 2016-05-06 (320 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
SourcePackage: unity8
UpgradeStatus: Upgraded to zesty on 2016-11-22 (120 days ago)
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https://bugs.launchpad.net/canonical-devices-system-image/+bug/1675357/+subscriptions
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