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Paul White
[Ubuntu Bug Squad]
** Changed in: gnome-terminal (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1234453
Title:
Terminal freezes during long-running applications
Status in gnome-terminal package in Ubuntu:
Incomplete
Bug description:
What Was Expected:
Virtual Terminal would simply display output until program terminated or
ended.
What Happens:
When running an application in terminal, either as a launcher or simply
opening a virtual terminal directly , the screen output randomly freezes and
the generating running application freezes. To resume, one must double-click
the open terminal window and/or use terminal reset & clear. The problem makes
running almost any application with terminal screen output unusable--for
example, running a machine learning algorithm.
The problem affects both mate-terminal and gnome-terminal. The bug
does not affect a simple x-terminal instance.
Affected Applications:
gnome-terminal
mate-terminal
but not xterminal.
Test Code:
The following simple Python3 code demonstrates the issue.
import time
starttime = time.time()
i = 0
while(True):
i = i + 1
print("Still working " , i, " " , time.time() - starttime)
When running this code in a mate-terminal or gnome-terminal instance,
the code displays a simple message along with the time. After a random
period, sometimes seconds, sometimes minutes, the bug arises when the
terminal instance screen simply freezes. That is, display output just
stops in mid-stream. You can resume but only by double-clicking or
using reset & clear.
The bug affects at least Python and Java applications with output
displaying to the terminal.
Approximate Number of Tests:
Over 50 and narrowed the issue to the terminal instances.
Hardware:
i7 4770
32GB RAM
(new) Nvidia 760 Video (note: the problems occurs with Nouveua or any
proprietary Nvidia driver versions 3.04 through 3.25, that is, all were tested
to see if this was just a driver issue and none resolved the issue)
OS:
Ubuntu 13.04 (with all updates)
Desktops:
Confirmed the bug occurs under Ubuntu Default, GNOME3, and MATE desktops.
apt-cache policy gnome-terminal
gnome-terminal:
Installed: 3.6.1-0ubuntu4
Candidate: 3.6.1-0ubuntu4
Version table:
*** 3.6.1-0ubuntu4 0
500 http://us.archive.ubuntu.com/ubuntu/ raring/main amd64 Packages
100 /var/lib/dpkg/status
apt-cache policy mate-terminal
mate-terminal:
Installed: 1.6.1-1.1+raring
Candidate: 1.6.1-1.1+raring
Version table:
*** 1.6.1-1.1+raring 0
500 http://packages.mate-desktop.org/repo/ubuntu/ raring/main amd64
Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: gnome-terminal 3.6.1-0ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Wed Oct 2 19:52:43 2013
InstallationDate: Installed on 2013-08-06 (57 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)
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