pulseaudio-modules-bt no longer works. If you have issues connecting to your bluetooth speaker or headset, try installing pulseaudio-bluetooth:
sudo pacman -Syu
sudo pacman -R pulseaudio-modules-bt
sudo pacman -S pulseaudio-bluetooth
If it still doesn’t work, try installing pipewire as explained here: Pipewire-pulse installation problem
Have seen this done before also with few other -git packages 
From top of the head mesa-git hijack caused a lot of problems and confusion – ESPECIALLY since it wasn’t even a live -git build helper like AUR version, but rather just a static snapshot that didn’t have anything to do with current git version.
Really wish they did -manjaro version instead of hijacking AUR packages with the same name.
if you specifically installed pulseaudio-modules-bt in the past for high fidelity codecs (aptx-*, ldac, etc.) and looking for alleged pulseaudio 15.0 support for the same its not coming. it only supports SBC and SBC_HQ with arch maintainers dropping support for additional libraries required for the same.
pipewire supports all codecs out of the box
You are making a good point, having it as separate package would make sense. I didn’t think about the fact that the existing installations might be affected.
It is not evil, it was necessary for having timeshift-autosnap in new installations by default. And it was not the only reason. The original seems practically unmaintained, so I took it over. Now we can add any new features we need or want.
timeshift-autosnap-manjaro has replaced timeshift-autosnap in all branches. The latter is still available in the AUR if you don’t want to use the Manjaro version.
when switching the layout, the value on dash to panel does not change
@linux-aarhus - Thanks for taking the time to split the thread. I don’t intend to restart the conversation here. This is just letting people know that, I shared the opinion and went to work and couldn’t reply to the thread. Would’ve loved to share my opinions and some answers at least but the thread is locked now.
I am genuinely surprised (seriously not mocking) that my comment wasn’t hidden. So I appreciate the thread anyways. 
I have some signature errors and I cannot fix it the usual way. I tried both pamac and pacman.
Here my last attempt after empty the /var/cache/pacman/pkg directory:
(201/201) checking keys in keyring [##################################################################] 100%
(201/201) checking package integrity [##################################################################] 100%
error: nvidia-utils: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/nvidia-utils-470.57.02-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: 0ad: signature from "Brett Cornwall <brett@i--b.com>" is unknown trust
:: File /var/cache/pacman/pkg/0ad-a24.b-7-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: libxnvctrl: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/libxnvctrl-470.57.02-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: linux-firmware: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/linux-firmware-20210719.r1990.168452e-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: linux512: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/linux512-5.12.19-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: linux512-headers: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/linux512-headers-5.12.19-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: linux513: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/linux513-5.13.5-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: linux513-headers: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/linux513-headers-5.13.5-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: pacman: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/pacman-6.0.0-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: mhwd-nvidia-390xx: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/mhwd-nvidia-390xx-390.144-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: mhwd-nvidia: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/mhwd-nvidia-470.57.02-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: opencl-nvidia: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/opencl-nvidia-470.57.02-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: snapd: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/snapd-2.51.3-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: failed to commit transaction (invalid or corrupted package)
Errors occurred, no packages were upgraded.
Is there some error from my mirror?
❯ pacman-mirrors
Pacman-mirrors version 4.21.2
Local mirror status for stable branch
Mirror #1 OK 05:55 France http://ftp.free.org/mirrors/repo.manjaro.org/repos/
Mirror #2 OK 17:14 France https://manjaro.ynh.ovh/
I ran into the same exact problem when I updated a few days ago. Using sudo pacman -Syu archlinux-keyring manjaro-keyring before doing anything else with the upgrade worked for me.
Still nothing:
error: manjaro-keyring: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
Do I need to add it’s signature manually? That seems weird…
As far as I know, that key was just expired. Try running sudo pacman-key --refresh-keys (it will take a while), and see if you can proceed with your upgrade.
(Edit: fix typo in command)
It took a while, but no updates regarding that key as I still have the same errors.
Why am I alone having these errors 
? 
OK, how about let’s try following the steps as explained in the wiki page Pacman troubleshooting - Manjaro, but do step 2 only at the end.
To be fair, it also took me a while to get this sorted including following the steps above.
I changed my mirror and I followed the procedure. Here is the log, still a problem:
❯ sudo rm -rf /var/cache/pacman/pkg/*
❯ sudo rm -r /etc/pacman.d/gnupg
❯ sudo pacman-key --init
gpg: /etc/pacman.d/gnupg/trustdb.gpg: trustdb created
gpg: no ultimately trusted keys found
gpg: starting migration from earlier GnuPG versions
gpg: porting secret keys from '/etc/pacman.d/gnupg/secring.gpg' to gpg-agent
gpg: migration succeeded
==> Generating pacman master key. This may take some time.
gpg: Generating pacman keyring master key...
gpg: key FFD34F59C5695F04 marked as ultimately trusted
gpg: directory '/etc/pacman.d/gnupg/openpgp-revocs.d' created
gpg: revocation certificate stored as '/etc/pacman.d/gnupg/openpgp-revocs.d/41DC11BA0D15615059B15074FFD34F59C5695F04.rev'
gpg: Done
==> Updating trust database...
gpg: marginals needed: 3 completes needed: 1 trust model: pgp
gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u
❯ sudo pacman -Syy gnupg archlinux-keyring manjaro-keyring
:: Synchronizing package databases...
core 170,6 KiB 1004 KiB/s 00:00 [##################################################################] 100%
extra 1901,8 KiB 8,08 MiB/s 00:00 [##################################################################] 100%
community 6,6 MiB 14,8 MiB/s 00:00 [##################################################################] 100%
multilib 177,4 KiB 2,17 MiB/s 00:00 [##################################################################] 100%
:: Some packages should be upgraded first...
resolving dependencies...
looking for conflicting packages...
Packages (1) archlinux-keyring-20210802-1
Total Download Size: 0,94 MiB
Total Installed Size: 1,33 MiB
Net Upgrade Size: 0,00 MiB
:: Proceed with installation? [Y/n]
:: Retrieving packages...
archlinux-keyring-20210802-1-any 959,1 KiB 2,18 MiB/s 00:00 [##################################################################] 100%
error: failed retrieving file 'archlinux-keyring-20210802-1-any.pkg.tar.zst' from mirror.futureweb.be :
(1/1) checking keys in keyring [##################################################################] 100%
downloading required keys...
:: Import PGP key 6D42BDD116E0068F, "Christian Hesse <arch@eworm.de>"? [Y/n]
(1/1) checking package integrity [##################################################################] 100%
error: archlinux-keyring: signature from "Christian Hesse (Arch Linux Package Signing) <arch@eworm.de>" is unknown trust
:: File /var/cache/pacman/pkg/archlinux-keyring-20210802-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded.
warning: manjaro-keyring-20210622-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...
Packages (3) archlinux-keyring-20210802-1 gnupg-2.2.29-1 manjaro-keyring-20210622-1
Total Download Size: 3,43 MiB
Total Installed Size: 11,43 MiB
Net Upgrade Size: 0,00 MiB
:: Proceed with installation? [Y/n]
:: Retrieving packages...
gnupg-2.2.29-1-x86_64 2,4 MiB 9,36 MiB/s 00:00 [##################################################################] 100%
archlinux-keyring-20210802-1-any 959,1 KiB 14,2 MiB/s 00:00 [##################################################################] 100%
manjaro-keyring-20210622-1-any 128,8 KiB 5,47 MiB/s 00:00 [##################################################################] 100%
Total (3/3) 3,4 MiB 8,80 MiB/s 00:00 [##################################################################] 100%
(3/3) checking keys in keyring [##################################################################] 100%
downloading required keys...
:: Import PGP key FC1B547C8D8172C8, "Levente Polyak <anthraxx@archlinux.org>"? [Y/n]
:: Import PGP key 428F7ECC7117F726, "Helmut Stult <helmut@manjaro.org>"? [Y/n]
(3/3) checking package integrity [##################################################################] 100%
error: gnupg: signature from "Levente Polyak <anthraxx@archlinux.org>" is unknown trust
:: File /var/cache/pacman/pkg/gnupg-2.2.29-1-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: archlinux-keyring: signature from "Christian Hesse (Arch Linux Package Signing) <arch@eworm.de>" is unknown trust
:: File /var/cache/pacman/pkg/archlinux-keyring-20210802-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: manjaro-keyring: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/manjaro-keyring-20210622-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded.
I also checked my datetime, and it’s ok:
❯ date +%x-%X
06/08/2021-09:32:31
Ok by doing the steps from Pacman troubleshooting - Manjaro in a different order (1, 3, 4, 5, 6, 2) brings better result but the key from Helmut Stult is still not valid:
❯ sudo pacman -Sy gnupg archlinux-keyring manjaro-keyring
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
multilib is up to date
:: Some packages should be upgraded first...
resolving dependencies...
looking for conflicting packages...
Packages (1) archlinux-keyring-20210802-1
Total Download Size: 0,94 MiB
Total Installed Size: 1,33 MiB
Net Upgrade Size: 0,00 MiB
:: Proceed with installation? [Y/n]
:: Retrieving packages...
archlinux-keyring-20210802-1-any 959,1 KiB 5,20 MiB/s 00:00 [##################################################################] 100%
(1/1) checking keys in keyring [##################################################################] 100%
(1/1) checking package integrity [##################################################################] 100%
(1/1) loading package files [##################################################################] 100%
(1/1) checking for file conflicts [##################################################################] 100%
(1/1) checking available disk space [##################################################################] 100%
:: Processing package changes...
(1/1) upgrading archlinux-keyring [##################################################################] 100%
==> Appending keys from archlinux.gpg...
gpg: public key DB323392796CA067 is 3037 days newer than the signature
==> Locally signing trusted keys in keyring...
==> Importing owner trust values...
==> Disabling revoked keys in keyring...
gpg: checking the trustdb
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: key 786C63F330D7CB92: no user ID for key signature packet of class 10
gpg: public key DB323392796CA067 is 3037 days newer than the signature
gpg: key 1EB2638FF56C0C53: no user ID for key signature packet of class 10
gpg: key 1EB2638FF56C0C53: no user ID for key signature packet of class 10
gpg: marginals needed: 3 completes needed: 1 trust model: pgp
gpg: depth: 0 valid: 1 signed: 25 trust: 0-, 0q, 0n, 0m, 0f, 1u
gpg: depth: 1 valid: 25 signed: 85 trust: 0-, 0q, 0n, 25m, 0f, 0u
gpg: depth: 2 valid: 76 signed: 25 trust: 76-, 0q, 0n, 0m, 0f, 0u
gpg: next trustdb check due at 2021-10-12
-> Disabled 1 keys.
==> Updating trust database...
gpg: next trustdb check due at 2021-10-12
:: Running post-transaction hooks...
(1/2) Arming ConditionNeedsUpdate...
(2/2) pacnew-chaser notify
warning: manjaro-keyring-20210622-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...
Packages (2) gnupg-2.2.29-1 manjaro-keyring-20210622-1
Total Download Size: 2,49 MiB
Total Installed Size: 10,10 MiB
Net Upgrade Size: 0,00 MiB
:: Proceed with installation? [Y/n]
:: Retrieving packages...
gnupg-2.2.29-1-x86_64 2,4 MiB 1889 KiB/s 00:01 [##################################################################] 100%
manjaro-keyring-20210622-1-any 128,8 KiB 2013 KiB/s 00:00 [##################################################################] 100%
Total (2/2) 2,5 MiB 1753 KiB/s 00:01 [##################################################################] 100%
(2/2) checking keys in keyring [##################################################################] 100%
(2/2) checking package integrity [##################################################################] 100%
error: manjaro-keyring: signature from "Helmut Stult (schinfo) <helmut.stult@schinfo.de>" is unknown trust
:: File /var/cache/pacman/pkg/manjaro-keyring-20210622-1-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded.
archlinux-keyring was updated today, was there a reason for this?
Thanks, that works. The key step, was TO NOT REFRESH KEYS, at least for the moment.
it seems there’s a need to meddle with pipewire after all 
Gotta say, not looking forward to even more breakages on my system on each snap to stable…