Linux Mint Forums

E: Unable to correct problems, you have held broken packages.

Open and login to Synaptic Package Manager, and from the menubar choose "Fix broken packages" . . please report any error messages.

Found this in a related topic, you may want to try it . .

Cinnamon-settings->Effects - turn off "Overlay scrollbars" , and log out and back in.

After a recent update . .

Can you go into Mint Update Manager's history and narrow down what exactly was updated just before this occurred?

Keep the official-package-repositories.list and delete the whole sources.list file. They are all dupes of the official list.

Can you use the Mint Update Manager to remove some of the old kernels you aren't using anymore? to make room for the new?
You have about 28 megs left in your /boot, and trying to fit in an updated kernel, which takes about 35 megs or so . .

gzip: stdout: No space left on device

Is your / (root) or /boot partition full ?

Please try this command from the terminal and report any errors.

sudo dpkg --configure -a

(note the space preceding the dashes)

You can try starting it from the terminal, and report any error messages that pop up in the terminal window . . might help troubleshoot.

For Xfce, I use a dark theme from mozilla add-ons, as firefox seems to always have problems with text boxes etc. For system-wide themes (excluding firefox) there are many nice ones at deviantart.com. Just do a search for xfce dark or xfwm4 dark.

You may need to download the source code of the latest edition from their website and compile it. (don't forget to have build-essentials installed prior to compiling)

Qalculate might fit your needs. I use the older version available in Synaptic Package Manager.

https://qalculate.github.io/

Or, you may want to try this, at the the grub screen, choose the Repair mode (command prompt), and run sudo nvidia-xconfig .

What does this terminal command give you as output ?

inxi -Cx

My guess? Power Saving feature drops your cpu power when it is not required.

Here's help, faqs, and guides from the people at Xfce. If it will help you?
https://xfce.org/
https://wiki.xfce.org/

Just a thought;
Have you tried deleting that file and re-downloading a fresh copy? Sometimes a re-install won't re-download.
To remove: sudo rm /var/cache/apt/archives/python3-uno_1%3a4.2.8-0ubuntu5.3_amd64.deb
Then retry the upgrade, hopefully it will download a fresh copy . .

I personally, always keep one extra kernel that I know works well with my hardware. (and keep that kernel version also updated)
Just in case a new update corrupts the newest one, I have a fallback that I know works.

Update Manager > View > Kernels
Use the Update Manager to remove un-used/un-wanted kernels.

There will be a provider of 32 bit distros for as long as 32 bit machines are still out there . .

All the servers (and any updates) have been taken down for obsolete Mint 13.

If you look in the OP's synaptic pic, you can see that it is version 54 of firefox.