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Yes, that's how I added the boot parameter.



I went ahead and tested anyway doing all the combinations of both the EFI changes and iommu= boot parameter changes 1fallen mentioned. Sadly, none...

Tried Legacy USB mode set to Auto and Disabled, both with xHCI Hand-off Enabled. Unfortunately it didn't make any difference :(



This did not make any difference either, nor did iommu=pt. But...

I went through my EFI settings, and found a setting "xHCI Handoff" that was set to Disabled. Enabling that did not get this working, but the syslog messages like quoted above are now interspersed...

Does something from this thread help?

The above didn't completely disable PackageKit. I was getting errors in syslog.

To prevent the errors, I also needed to comment out the contents of /etc/apt/apt.conf.d/20packagekit . And with...

Thanks for the replies. I think expanding my search to include these details maybe getting somewhere.

As shown in screenshots of EFI settings suggest the motherboard of this computer might be a...

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What if you open a Terminal in the directory containing the run.command file, and run ./run.command in that Terminal?

Hi 1fallen, nice to see you around and thanks for pointing me to use systemctl. I ran the commands you suggested, plus

$ systemctl --user stop pk-debconf-helper{,.socket}
$ systemctl --user...

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I noticed lately that after the last few times I've run software updates on apt packages, my computer's fans were kicked up for maybe ~30 seconds after the update had completed. This time I caught...

I don't know exactly, but Blender 2.8x removed a lot of features and I suspected that might include what Openshot makes use of.

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Does it work with Blender 2.79b from here?

Every "dev-src" should be deb-src .

Maybe something about your physical audio setup is causing your speakers to act as a radio? That has happened to me before :-?

Any clues from looking at pavucontrol while Firefox is trying to play audio?
Do you have the needed codec for the audio in question available to Firefox?

I have for a long time used custom configuration method for my touchpad: synclient -l output is stored in a file, and a script is run on login to restore it back through synclient. I would like to...

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Firefox has its own certificate database and I think Chrome does too. Did you try importing your certificate into Firefox using Firefox's own settings page? (Edit > Preferences > Privacy & Security...

Thanks for the feedback rbmorse. So you're saying this is likely a software issue? Do you know whether this is yet resolved in *buntu 20.10 or later?

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If you are still seeking a "better" solution, have you looked into xset dpms options? I needed that for a Xfce desktop where I didn't have xfce-power-manager. See man xset for more info.

Is this it?