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<p>Hi Koos -</p>
<p>I had a talk with my wife Lene Fischer about your issues. (She is
a Assoc. Prof. teaching GIS at a department of the University of
Copenhagen using QGIS. I co-lecture with her on the use of spatial
enabled databases (PostgreSQL/ PostGIS)). <br>
</p>
<p>She hasn't experienced the issues you describe (but some other
issues) <br>
</p>
<p>Here is some pointers:</p>
<ul>
<li>Use a long-term releases and keep up with the point releases
3.10.3 -> 3.10.4 (Which you do :-)</li>
<li>Clean the temp dir regularly (Which you did :-)</li>
<li>Check the setup of your windows pointers to user-dirs, temp
space. Sometimes they are not suited for computers outside the
university network (or inside, if the network sucks) <br>
</li>
<li>Check if your logon name contains special characters outside
us-ASCII like accented character or blanks. QGIS is fine with
these but some add-on libraries is not. The logon name can be a
part of a path name that something chokes on.</li>
<li>Check your antivirus by temporarily disable it before using
QGIS.</li>
<li>Check your disk space. The temp dir can "grow" considerably
during QGIS use. <br>
</li>
<li>Check the amount of memory used on your computer. If you <b>are</b>
using all available ram you <b>will</b> get the symptoms you
describe<br>
</li>
<li>Install a minimum of plugins.</li>
<li>Keep your windows installation as clean as possible. QGIS
might conflict with some other software installed on your
computer. You might try to install QGIS on computer with a new
clean install of windows. Check if the error is repeated on the
new computer. <br>
</li>
<li>You might try with installing QGIS from the "network
installer" utility instead of a stand-alone installation (<a class="moz-txt-link-freetext" href="https://download.osgeo.org/osgeo4w/osgeo4w-setup-x86_64.exe">https://download.osgeo.org/osgeo4w/osgeo4w-setup-x86_64.exe</a>).
It defaults to another installation directory than the
stand-alone installation. That might help.</li>
<li>If nothing of the above works - try another version of QGIS
i.e. 3.12.1. <br>
The network installer has the possibility to install a
"bleeding edge" version of QGIS but I won't recommend using
these in a teaching situation (or any other situation which
involves inexperienced users). But you can use it in a testing
situation <br>
<br>
</li>
</ul>
<pre class="moz-signature" cols="72">--
Med venlig hilsen / Kind regards
Bo Victor Thomsen
</pre>
<p> <br>
</p>
<div class="moz-cite-prefix">Den 09-04-2020 kl. 11:20 skrev Koos
Fransen:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal">Hi Bo<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks for your quick
response!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Sorry for the minimal
information provided, I wasn’t sure what to add (first
question to the QGIS user list).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">To answer your
questions:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">OS: Windows 10 – 64 bit<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">QGIS version: 3.10.4 64
bit, stand-alone installation<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m not in any networked
set-up, I’m working from home on my own computer. I have
only one plugin installed (QuickOSM), and I’ve already tried
uninstalling, but without any difference.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Since my question I’ve
been trying some things, and I have deleted the temporary
QGIS files in my Local/Temp folder. When I open and use QGIS
now, I have the feeling it’s more stable again. It gives a
hint of freezing up at the start, but afterwards all goes
quite well again. Then again, not sure of this is a solid
solution for fixing this issue, as I have experienced this
issue before completely deleting and reinstalling everything
QGIS-related on my laptop (using REVO uninstaller). After
this, QGIS worked fine for about a week until today.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I do recall trying to
load some large files into QGIS, maybe they were stored in a
temporary directory somewhere and deleting the temporary
files helped?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Anyways, it might be
relevant for me to know. I’ve switched our courses from
ArcGIS to QGIS, and I’m really happy about it, but I would
like to be able to help my students if these kind of
problems occur.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank for the help
already, not sure if there’s more to do for now, but let me
know if you have any more ideas.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kind regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Koos<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal" style="background:white"><span
style="font-size:8.0pt;font-family:"Century
Gothic",sans-serif;color:#8EAADB;background:white;mso-fareast-language:NL"
lang="EN-GB">-- </span><span
style="font-size:8.0pt;font-family:"Century
Gothic",sans-serif;color:#8EAADB;mso-fareast-language:NL"
lang="EN-GB"><br>
<b><span style="background:white">dr. Koos Fransen<o:p></o:p></span></b></span></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:8.0pt;font-family:"Century
Gothic",sans-serif;color:#8EAADB;mso-fareast-language:NL"
lang="EN-GB">Research unit Cosmopolis (VUB)<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:8.0pt;font-family:"Century
Gothic",sans-serif;color:#8EAADB;mso-fareast-language:NL"
lang="EN-GB">Research unit ISE (UGent)</span><b><span
style="font-size:8.0pt;font-family:"Century
Gothic",sans-serif;color:#8EAADB;background:white;mso-fareast-language:NL"
lang="EN-GB"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="mso-fareast-language:NL"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:8.0pt;font-family:"Century
Gothic",sans-serif;color:#2F5496;mso-fareast-language:NL"
lang="EN-GB">I am available for
<u>VUB</u> on <u>Tuesdays, Thursdays and Fridays</u> and
for UGent on Mondays and Wednesdays. Consequently, I try
to structure meetings accordingly and answers to your
mails may be delayed.<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="mso-fareast-language:NL" lang="EN-US">From:</span></b><span
style="mso-fareast-language:NL" lang="EN-US"> Qgis-user
<a class="moz-txt-link-rfc2396E" href="mailto:qgis-user-bounces@lists.osgeo.org"><qgis-user-bounces@lists.osgeo.org></a>
<b>On Behalf Of </b>Bo Victor Thomsen<br>
<b>Sent:</b> donderdag 9 april 2020 10:16<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
<b>Subject:</b> Re: [Qgis-user] ISSUE QGIS keeps
freezing - QGIS Desktop 3.10.4<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p>Hi Koos: <span style="mso-fareast-language:NL"><o:p></o:p></span></p>
<p>That's not much information to go on. <o:p></o:p></p>
<p>What about: OS type and version ? 32/64 bit os ? QGIS
version ? QGIS 32/64 bit ? network environment ? Normal
stand-alone installation or Network installation ?<o:p></o:p></p>
<p>I'll hazard a <b>guess</b> based on my own painful
experiences: You are working in a networked windows setup,
where your IT department has made some modifications for home
directory (including temp file placement) and/or the userdata
environment - maybe making it fully dependant on the network.
And maybe You are using the same login account for all pupils.
Combine this with a marginally functioning network and it will
be a train wreck<o:p></o:p></p>
<p>Another scenario: You have installed some plugin, that's not
working correctly.<o:p></o:p></p>
<p>What you can test: <o:p></o:p></p>
<ul type="disc">
<li class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
level1 lfo1">
Disable/Remove all plugins from QGIS and test if the problem
goes away <o:p></o:p></li>
<li class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0
level1 lfo1">
Load some GIS data locally on you computer and disconnect
the computer from the network. Then test QGIS again.<o:p></o:p></li>
</ul>
<p>That said, QGIS ver. 3.10 onwards has long startup times.
However it's quick and stable after that<o:p></o:p></p>
<p class="MsoNormal">-- <o:p></o:p></p>
<pre>Med venlig hilsen / Kind regards<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Bo Victor Thomsen<o:p></o:p></pre>
<p>Den 09-04-2020 kl. 09:46 skrev Koos Fransen:<o:p></o:p></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="EN-US">Dear all</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I have a question
regarding QGIS.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I’m using QGIS for my
classes, but since a recent install my QGIS keeps freezing
right after startup. It doesn’t respond until after a
minute, then I can open some files and then it freezes
again. This keeps on going, making it impossible to keep
working with QGIS.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I’ve tried
reinstalling, which always helps at first, but after a
couple of days it starts freezing again. I’ve also tried
with different versions, with the same result.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">It might maybe have
something to do with temporary files?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Has someone
experienced the same issue, and are there possible
solutions that you know of?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks!</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Koos</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:NL"><br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Qgis-user mailing list<o:p></o:p></pre>
<pre><a href="mailto:Qgis-user@lists.osgeo.org" moz-do-not-send="true">Qgis-user@lists.osgeo.org</a><o:p></o:p></pre>
<pre>List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" moz-do-not-send="true">https://lists.osgeo.org/mailman/listinfo/qgis-user</a><o:p></o:p></pre>
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</blockquote>
<pre><o:p> </o:p></pre>
</div>
</blockquote>
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