+1
But gets really messy sometimes.

A.

Hello:

Sorry, my fault ...
The package name is python3-pyqt4. 

It's quite allright.
No problem.  8^D

Cheers,

A.

Hello:

I assume it is after, which is when dependency hell has broken loose.  8^D.
Let's see if we can find a way out of this.

First purge the previous version of HPLIP.

As root: apt purge autoremove hplip

Reboot and try to install HPLIP 3.19.5 you got from HP (I assume it is a *.deb file?)

Post the output so we can see what's going on dependency wise.

Maybe they are just one or two libraries and you can install them via apt with no issues and then try to install HPLIP 3.19.5 again.
Or maybe they cannot be installed because those dependencies also have their own dependencies to complain about and it goes on.

Edit
Q:
Is it absolutely necessary to install HPLIP to get the scanner/printer working?
A couple of years ago I needed to get a printer to use at home asap and landed an inexpensive Samsung M2020W.
HPLIP was a hellish experience and then I came across CUPS. No issues ever again.

Cheers,

A.

Hello:

I have not found it there.

The debian Stretch backport is hplip-gui 3.18.12+dfsg0-2~bpo9+1

I stand correcetd.
Indeed, the squiggles are due to the spellchecker.
I don't use automatic spell checking.

But there was a time when, if you entered Devuan in the Google search engine, it would invariably ask if you had not meant Debian.
Not the case any longer.  8^D

Cheers,

A.

Hello:

OK.

OK

https://i.imgur.com/mbB5s7u.jpg
https://i.imgur.com/EZGoIBR.jpg
https://i.imgur.com/dCFZBrc.jpg

Can't see any of these but it does not matter much as I don't have the application.
I'd suggest some other on line image depo.

OK

Rather limited here as I don't have the software or the hardware and have run out of ideas.
I think this may be a CUPS configuration issue, an HPLIP version issue or a combo of both.
The printer gets on-line and works, so that is not a problem.

Here's a link to the HP Basic HPLIP troubleshooting page.

Check to see what results you get from what they suggest, specifically these actions:

Cheers,

A.

Hello:

I don't have one of these HP multi-things so I'm relying on what you can tell me.
I avoid anything multi, better to do just one thing and do it right.
I still use a ca. 1996 Umax S-6E, works great.

How is this device connected to you box?
Try installing simple-scan and see if it detects the scanner.

[root@devuan]# apt install simple-scan

If not, is there something called HP Toolbox installed along with HPLIP?
Does it have the option to install a Fax Printer?
If not, install it and see if it works.

Also check this thread, I think the solution may be there among many posters who had the same issue.

Cheers,

A.

Hello:

OK.

[root@devuan ~]# apt --simulate --autoremove purge firmware-amd-graphics
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  amd64-microcode* firmware-amd-graphics* firmware-linux* firmware-linux-nonfree* intel-microcode* iucode-tool*
0 upgraded, 0 newly installed, 6 to remove and 0 not upgraded.
Purg amd64-microcode [3.20160316.3]
Purg firmware-linux [20190114-2~deb9u1]
Purg firmware-linux-nonfree [20190114-2~deb9u1]
Purg firmware-amd-graphics [20190114-2~deb9u1]
Purg intel-microcode [3.20200616.1~deb9u1]
Purg iucode-tool [2.1.1-1]

[root@devuan ~]# apt install amd64-microcode
Reading package lists... Done
Building dependency tree       
Reading state information... Done
amd64-microcode is already the newest version (3.20160316.3).
amd64-microcode set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
[root@devuan ~]# apt install intel-microcode
Reading package lists... Done
Building dependency tree       
Reading state information... Done
intel-microcode is already the newest version (3.20200616.1~deb9u1).
intel-microcode set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
[root@devuan ~]# apt install iucode-tool
Reading package lists... Done
Building dependency tree       
Reading state information... Done
iucode-tool is already the newest version (2.1.1-1).
iucode-tool set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
[root@devuan ~]# 

[root@devuan ~]# apt --simulate --autoremove purge firmware-amd-graphics
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  firmware-amd-graphics* firmware-linux* firmware-linux-nonfree*
0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
Purg firmware-linux [20190114-2~deb9u1]
Purg firmware-linux-nonfree [20190114-2~deb9u1]
Purg firmware-amd-graphics [20190114-2~deb9u1]
[root@devuan ~]#

[root@devuan ~]# apt --autoremove purge firmware-amd-graphics
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  firmware-amd-graphics* firmware-linux* firmware-linux-nonfree*
0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
After this operation, 31.0 MB disk space will be freed.
Do you want to continue? [Y/n] 
(Reading database ... 140831 files and directories currently installed.)
Removing firmware-linux (20190114-2~deb9u1) ...
Removing firmware-linux-nonfree (20190114-2~deb9u1) ...
Removing firmware-amd-graphics (20190114-2~deb9u1) ...
[root@devuan ~]# 

That should do it.  =-)
I'll come back if I hit a snag.

Edit: package amd64-microcode also removed without ill effects as I run on Intel hardware.

Thanks a lot for your input.

Cheers,

A.

Hello:

It's not Data Validation, it is something else that these DHs enable by default, à la Microsoft Office.
Incredible that they have not learned anything from their nemesis' shortcomings ...

This is yet another feature called, not surpringly, autoreplace.

To answer my question: one turns off autoreplace by going to the menu bar, selecting Tools > AutoCorrect Options...
You then click on the Options tab and uncheck the "Use replacement table".

My apologies for the noise.

Cheers,

A.

Hello:

See this post https://forums.linuxmint.com/viewtopic.php?t=326047

Questions:

Does your system work properly?

Are you using VirtualBox or VMware?
Any issues?

Do you have the latest BIOS available for your laptop?

Is this the same Fujitsu Worksation Laptop with Nvidia Quadro FX770m Graphics you were installing Nvidia legacy drivers for?
If so and most important: are you certain that the graphics card you have added is compatible/supported?

Cheers,

A.

Hello:

You're welcome.

With the solution.  8^7

The nvidia-legacy 340.xx is the last driver with updates from Nvidia and has suffered very little change in the past years.
The cards it is for are no longer manufactured or supported, hence the 'legacy'.
See the link to the nvidia web sire I posted when answering one of your earlier posts.

The information is all there but you have to read it. -> https://dev1galaxy.org/viewtopic.php?pid=24965#p24965

If you are on a one screen system you probably do not need it.

It is not my walkthrough.
HevyDevy wrote it up.
It applies to Linux in general.

Cheers,

A.

Hello:

Spot on!   8^D

(thunar:2500): Gdk-ERROR **: 16:08:14.176: The program 'thunar' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
(Details: serial 18413 error_code 3 request_code 141 (Composite) minor_code 8)     <---- here it is
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the GDK_SYNCHRONIZE environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)

Commenting the compton & line in /home/groucho/.config/openbox/autostart solved the problem.
So it seems that there will be no compositing for me in Beowulf+Openbox.

But the .xsession-errors file is absolutely huge, Way over the 6000 line scollback I've set in terminal so I cleared it with :> and will start to check all that.

Thanks for your input.

Cheers,

A.