Nvidia driver won't rollback after switching from unstable branch to stable

I switched to the unstable branch to see if some issues I had with KDE would be gone with Nvidia beta drivers.

Unfortunately, KDE seems to be broken after I switched to the unstable branch, so I went back to the stable branch.

However, the desktop environment is still broken (the desktop freeze after a few seconds).

I run “sudo pacman -Syuu” to downgrade the package, however I think it fails downgrading lib32-nvidia-utils :

Warning: lib32-nvidia-utils : (570.86.16-1 => 550.144.03-1)

Unresolvable dependency : lib32-nvidia-utils

Do you have any idea of what I could do ?

Hi @yamakasinge,

Did you change the branch in pcman-mirrors?

sudo pacman-mirrors --api --set-branch stable

Update mirror and package lists:

sudo pacman-mirrors --continent && sudo pacman -Sy

And try to sync again?

sudo pacman -Syuu

Note the sudo with all the commands.

I did almost those command, but redid yours exactly and here is the output:

sudo pacman -Syuu
:: Synchronizing package databases
core is up to date
extra is up to date
multilib is up to date
:: Starting full system update
warning resolving dependencies
lib32-nvidia-utils: reverting to previous version (570.86.16-1 => 550.144.03-1)
warning: cannot resolve < nvidia-utils-558.144.03, a dependency of < lib32-nvidia-utils>>
the following cannot be upgraded due to unresolvable dependencies:
:: Package lib32-nvidia-utils
:: Do you want to ignore the above package for this upgrade?  [o/N] N
error: Transaction preparation failed (failed to satisfy dependencies)
:: Unable to satisfy dependency < nvidia-utils-550.144.83 required by lib32-nvidia-utils

:bangbang: Tip :bangbang:

When posting terminal output, copy the output and paste it here, wrapped in three (3) backticks, before AND after the pasted text. Like this:

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This will just cause it to be rendered like this:

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arcu erat varius
cursus sem quis eros.

Instead of like this:

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Alternatively, paste the text you wish to format as terminal output, select all pasted text, and click the </> button on the taskbar. This will indent the whole pasted section with one TAB, causing it to render the same way as described above.

Thereby increasing legibility thus making it easier for those trying to provide assistance.

For more information, please see:

As I’m a moderator on the forum, I have taken the liberty of doing this for you, this time.


:bangbang::bangbang: Additionally

If your language isn’t English, please prepend any and all terminal commands with LC_ALL=C. For example:

LC_ALL=C bluetoothctl

This will just cause the terminal output to be in English, making it easier to understand and debug.

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OK, to be completely honest, I don’t know if it’s safe.

That said, if it was me, I’d say fuggit, hope for the best and continue.

Note: I’m not recommending it, I am just saying what I’d have done. Take it as you will, but don’t come running to me if something breaks.

Instead, it’s a better idea to run to the Forums. Where there are more people, not just the guy that gave you advice that didn’t work for you.

Yeah I still have a broken desktop after pressing yes

Create a new user and test with that.