[SOLVED] Can't system update - mesa-git dependency

TySpicer · 2025-10-28 13:57:05

Here's the output of `sudo pacman -Syu`:

:: Synchronizing package databases...
 core is up to date
 extra is up to date
 multilib-testing is up to date
:: Starting full system upgrade...
:: Replace libappindicator-gtk3 with extra/libappindicator? [Y/n] y
:: Replace pcmanfm-gtk3 with extra/pcmanfm? [Y/n] y
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: installing llvm-libs (21.1.4-1) breaks dependency 'libLLVM.so=20.1-64' required by mesa-git

I tried saying "No" as well, but it still doesn't work:

:: Synchronizing package databases...
 core is up to date
 extra is up to date
 multilib-testing is up to date
:: Starting full system upgrade...
:: Replace libappindicator-gtk3 with extra/libappindicator? [Y/n] n
:: Replace pcmanfm-gtk3 with extra/pcmanfm? [Y/n] n
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: installing llvm-libs (21.1.4-1) breaks dependency 'libLLVM.so=20.1-64' required by mesa-git

I wouldn't necessarily want to uninstall `mesa-git` because it fixed an issue with Ardour - https://discourse.ardour.org/t/solved-a … dow/112213

How should I proceed from here?

Last edited by TySpicer (2025-11-08 17:35:56)

Scimmia · 2025-10-28 14:00:27

You will need to rebuild mesa-git against the new llvm. The clean way to do this is to build it in a clean chroot and add it to a local repo so it gets updated along with the new llvm. Alternatively, you switch to mesa, then rebuild and reinstall mesa-git.

V1del · 2025-10-28 14:39:17

There have been a bunch of fix releases of 25.2 in the meantime, if you don't know the exact commit that fixes this for you, it might have been backported into a release already?

cryptearth · 2025-10-28 16:31:28

i could be wrong but you have standard core and extra but testing multilib? that asks for things to break - either use standard or testing for all repos but don't mix them

V1del · 2025-10-28 16:51:35

That's definitely also not good, but just from what can't be fulfilled by the visible error message shouldn't factor in right now, but you should address this as well.

TySpicer · 2025-10-28 18:06:05

Scimmia wrote:

rebuild mesa-git

I tried `paru -S mesa-git` to update it, and I got this:

:: Resolving dependencies...
:: Calculating conflicts...
:: Calculating inner conflicts...

Repo (1) llvm-libs-21.1.4-1
Aur (1) mesa-git-26.0.0_devel.214014.fd55e874ed0.d41d8cd-1

:: Proceed to review? [Y/n]: y

:: Downloading PKGBUILDs...
 PKGBUILDs up to date
 nothing new to review
[sudo] password for tyspicer: 
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: installing llvm-libs (21.1.4-1) breaks dependency 'libLLVM.so=20.1-64' required by mesa-git

Is this how I should rebuild it?

cryptearth wrote:

you have standard core and extra but testing multilib

I enabled that this morning trying to install Steam. I used the instructions here: https://wiki.archlinux.org/title/Offici … s#multilib

Should I disable something else there as well?

cryptearth · 2025-10-28 18:43:07

you uncommented the wrong multilib
what you meant to: multilib
what you actually did: multilib-testing
that are two different repos - you should fix your pacman.conf

TySpicer · 2025-10-28 21:54:58

cryptearth wrote:

you uncommented the wrong multilib

Ah, I see. Thanks!

As for fixing the dependency issue, Scimmia's original post feels right, I'm just not sure how to interpret it. How should I proceed from here?

Scimmia · 2025-10-28 23:34:57

TySpicer wrote:

Is this how I should rebuild it?

No, it's not. I gave you the options on how to do that in post #2.

Lone_Wolf · 2025-10-29 10:57:42

TySpicer[/quote wrote:

Scimmia's original post ~~feels~~ is right,

fixed that for you

TySpicer wrote:

How should I proceed from here?

See my pinned comment on mesa-git aur page

TySpicer · 2025-11-03 20:01:11

I downloaded `mesa-git`, navigated into the folder, and ran `pkgctl build`. This took a while, but it looks like it worked. Then, I ran `makepkg -i` to install it, but it looks like I'm missing the dependency `libLLVM.so=21.1-64`. I tried `sudo pacman -S libLLVM.so=21.1-64`, and it gave me this:

error: failed to prepare transaction (could not satisfy dependencies)
:: installing llvm-libs (21.1.4-1) breaks dependency 'libLLVM.so=20.1-64' required by mesa-git

What should I do next?

Scimmia · 2025-11-03 20:07:09

Maybe switch to a distro that doesn't expect you to be able to read an follow instructions.

seth · 2025-11-03 20:39:00

Sanity check: have you even tried whether mesa 25.2.6 fixes your ardour problem?
Notably since

Lone_Wolf wrote:

TySpicer wrote:
Scimmia's original post feels is right

and

Scimmia wrote:

Alternatively, you switch to mesa, then rebuild and reinstall mesa-git.

ie you might want to intermediately install mesa 2.25.6 anyway.

WorMzy · 2025-11-04 01:32:53

Mod note: moving to AUR Issues

Lone_Wolf · 2025-11-04 14:26:09

https://aur.archlinux.org/packages/mesa-git#comment-741159 wrote:

install the newly built mesa-git

I may have to rephrase that line to make it more clear what I mean with install .

run pacman -U /path/to/mesa-git-binary-that-was- build-with-pkgctl as root or with root rights .

If that fails post the output you get and add the output of pacman -Qs llvm

pacman -Qs llvm

TySpicer · 2025-11-05 19:25:29

seth wrote:

you might want to intermediately install mesa 2.25.6 anyway.

Should I uninstall mesa-git first, or does it matter?

Lone_Wolf wrote:

run pacman -U /path/to/mesa-git-binary-that-was- build-with-pkgctl as root or with root rights

Which file would this be? I tried `sudo pacman -U PKGBUILD`, but it said "Unrecognized archive format." This sounds like it would be one of the `.tar.gz` files.

Here's the output of `pacman -Qs llvm`:

local/clang 20.1.8-2
    C language family frontend for LLVM
local/lld 20.1.8-1
    Linker from the LLVM project
local/llvm 20.1.8-1
    Compiler infrastructure
local/llvm-libs 20.1.8-1
    LLVM runtime libraries
local/spirv-llvm-translator 20.1.5-1
    Tool and a library for bi-directional translation between SPIR-V and LLVM
    IR

seth · 2025-11-05 20:07:31

Installing mesa will replace mesa-git … how did you get into this situation if you don't know these things?

I tried `sudo pacman -U PKGBUILD`

Do yourself a favor and read through https://wiki.archlinux.org/title/Pacman - you want to know basic pacman.

Lone_Wolf · 2025-11-05 20:17:04

It would be an archive which name starts with mesa-git and ends with .pkg.tar.zst .

However your system is still on llvm 20 which will block installing mesa-git built against llvm 21.

The simplest way to get out of the catch 22 is to revert to stock mesa.

Note that I advise to logout from gui and do this from a text console logged in as root

run

# pacman -Syu mesa

pacman will tell you mesa-git and mesa conflict, instruct it to remove mesa-git .

TySpicer · 2025-11-07 20:07:00

I went back to the tty, logged in as root, and ran `pacman -Syu mesa`, so I have mesa instead of mesa-git now. It looks like that fully updated my system, so after logging back into Hyprland and running `sudo pacman -Syu`, there was nothing to do. Great!

Now, I have the issue I had with Ardour before. If I open a few plugin windows, it crashes. Could I try switching back to mesa-git at this point? Would be a different topic now?

seth · 2025-11-07 20:22:03

Could I try switching back to mesa-git at this point? Would be a different topic now?

Yes and probably no.
You'll however inevitably run into the same situation again w/ some later update and have to repeat the process.

Lone_Wolf · 2025-11-08 10:44:28

The best option for a smooth upgrade next time repo llvm so-names change is to setup a custom local repository that is added at the bottom of pacman.conf .

After building the clean chroot new mesa-git version, you add it to your custom repo and run pacman -Syu .

Keep in mind that mesa typically gets hundreds of new commits every week and I recommend users of mesa-git update/build mesa-git atleast once a month.

Arch Linux

#1 2025-10-28 13:57:05

[SOLVED] Can't system update - mesa-git dependency

#2 2025-10-28 14:00:27

Re: [SOLVED] Can't system update - mesa-git dependency

#3 2025-10-28 14:39:17

Re: [SOLVED] Can't system update - mesa-git dependency

#4 2025-10-28 16:31:28

Re: [SOLVED] Can't system update - mesa-git dependency

#5 2025-10-28 16:51:35

Re: [SOLVED] Can't system update - mesa-git dependency

#6 2025-10-28 18:06:05

Re: [SOLVED] Can't system update - mesa-git dependency

#7 2025-10-28 18:43:07

Re: [SOLVED] Can't system update - mesa-git dependency

#8 2025-10-28 21:54:58

Re: [SOLVED] Can't system update - mesa-git dependency

#9 2025-10-28 23:34:57

Re: [SOLVED] Can't system update - mesa-git dependency

#10 2025-10-29 10:57:42

Re: [SOLVED] Can't system update - mesa-git dependency

#11 2025-11-03 20:01:11

Re: [SOLVED] Can't system update - mesa-git dependency

#12 2025-11-03 20:07:09

Re: [SOLVED] Can't system update - mesa-git dependency

#13 2025-11-03 20:39:00

Re: [SOLVED] Can't system update - mesa-git dependency

#14 2025-11-04 01:32:53

Re: [SOLVED] Can't system update - mesa-git dependency

#15 2025-11-04 14:26:09

Re: [SOLVED] Can't system update - mesa-git dependency

#16 2025-11-05 19:25:29

Re: [SOLVED] Can't system update - mesa-git dependency

#17 2025-11-05 20:07:31

Re: [SOLVED] Can't system update - mesa-git dependency

#18 2025-11-05 20:17:04

Re: [SOLVED] Can't system update - mesa-git dependency

#19 2025-11-07 20:07:00

Re: [SOLVED] Can't system update - mesa-git dependency

#20 2025-11-07 20:22:03

Re: [SOLVED] Can't system update - mesa-git dependency

#21 2025-11-08 10:44:28

Re: [SOLVED] Can't system update - mesa-git dependency

Board footer