non-starting browsers & other annoyances

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Update on those previous threads, for what it's worth. 

After pondering my options (upgrade or downgrade, try another DE, start from 
scratch, etc.), I decided that I would give this thing one last try. 

And here, I did not do anything different, so far as I can tell. During my 
futzing and fiddling phase, I changed the repos to PSB and PTB, but this 
didn't seem to help, as Kmail would always crash, and it didn't solve the 
problem with browsers not starting, nor did it get Open Office working. 

So I decided to give it one last try, and went through adding packages only a 
few at a time, downloading them all from standard repositories for Devuan 
Chimaera and TDE (no PSB or PTB). 

My usual practice is the download in batches, according to categories, if you 
will. I keep lists of those packages and dependencies that have worked in the 
past. Where there are problems or conflicts, I make a note, edit out those 
rejects, etc. Most of you probably have some similar habits, I suppose, but 
this is mine, and I've been doing it like this since 2006, across PC Linux, 
Kubuntu Hardy Heron 8.04x, Debian 8 or 9, and finally Devuan starting with 
Jessie. I've copied and saved my home folder across 3 desktops (plus a few 
test machines built out of junk), and at least 5 laptops. There may be a few 
other machines that I now forget. But anyway, so this isn't my first rodeo. 
What I do works for me; or at least, it always has done. 

After adding these packages only a few at a time, suddenly everything works 
again. The only thing I can see that is different is that these are slightly 
newer versions of the stable builds. I have not yet added qt5ct (which will 
allow me to use my TDE colors and themes on non-TDE programs). There are 
several threads on this already; so I will leave it at that. 

My browsers work again like usual, everything is back. So that's all good, 
right? Except, what bothers me is that I can't track down the cause of those 
problems. I can only think maybe it was due to some corrupt packages, or 
something like that, which makes me wonder how and why they would have got 
damaged. It could be that qt5ct and/or its dependencies are causing some 
conflict. 

On my previous installations, when I ran the echo command to enable qt5ct 
changes, I got error messages that said it was misconfigured as gtk2. Yet 
that is what this web page advises: 

https://askubuntu.com/questions/706528/qt-apps-stopped-inheriting-gtk-themes/748186#748186
https://web.archive.org/web/20201111174652/https://askubuntu.com/questions/706528/qt-apps-stopped-inheriting-gtk-themes/748186#748186

Then you run this command:
sudo sh -c "echo 'export QT_QPA_PLATFORMTHEME=gtk2' >> /etc/environment"
and reboot, and it always worked (at least, when I was running Devuan Beowulf 
on my desktop). The error message in qt5ct said that it ought to be something 
else, I think it was qt5 or maybe gtk5 (is that a thing?). So I tried 
modifying the command to: 
sudo sh -c "echo 'export QT_QPA_PLATFORMTHEME=qt5ct' >> /etc/environment"
but this did nothing. I hesitate to mess with this any more, since my system 
is stable again. 

Anyway ... so once more, I stand at the door, almost there, but can't get in. 

Now I am back to the same problem that irked me before; namely, either to get 
Open Office running, or to get Libre Office running and to change the color 
scheme of the GUI interface to something that doesn't cause me severe pain 
and discomfort (from looking at large patches white screen). I am wondering 
if I ought to try css, as I believe I still have E. Liddell's scripts 
somewhere (and his old emails with the attachments). Maybe I can use that to 
get my Libre Office GUI interface to use colors that are not so hard on my 
eyes. (I am not joking here. I get watery eyes, and eventually a migraine, 
after staring at a white screen for more than about 5 minutes.) 

Apologies for length, but I was trying to recount the various factors that may 
or not be relevant. I expect it will get trimmed in the responses. 

Any observations or suggestions or advice are appreciated. 

Bill
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