This issue occurs when using GPGME with multiple contexts and setting the OpenPGP engines to different GnuPG home paths. As you mentioned, it is crucial to let gpgconf know the correct home path so that it can locate the socket file used by gpg-agent and properly clean up all instances.

gpgconf assumes that there is only one of the daemons. In fact it can only work with one and that is the one daemon which listens on the socket. all daemon's do a self-check by trying to connect to themself and terminate if they realize that they are not anymore the owner of the socket. As long as a daemon is started by a gnupg component a file system lock is taken to avoid duplicate launching. However it a daemon is stared by other means this could lead to a race.

Maybe the title should be "Password - Kleopatra" (or similar) if the operation was triggered by Kleopatra.

Since codesigning for all dlls was added this is fully resolved.

Here is a patch to support "w32_error" for assuan_sock_get_flag function.

I believe this was fixed by T7386. Or it is now no hard lock up by T7402.
So, let me close this ticket.
If any new symptom, please add information into T7396.

I can say it's fixed in 2.4.7.

In select_application function, we can minimize the holding W-lock.

This may requires major changes for scdaemon.

For the cancelling operation, each card reader access should have an independent resource manager context.
Currently, a single pcsc.context is shared by all reader accesses.

Hard lockup should be avoided. In particular, following conditions should meet:

• gpgconf --kill scdaemon can kill scdaemon
• KEYINFO requests can be answered for other connections of scdaemon

As of 2024-11-18, my hypothesis is:

• there are some sort of race conditions between PC/SC + card reader (or its driver) + smartcard + scdaemon on Windows, at least at initial use after boot
• because of this, SCardConnect of PC/SC call wrongly fails (somehow confirmed by @ebo's experiments + @gniibe's speculation), or wrongly never returns (@gniibe's guess, side info: its slowness is observed in T7400).

@ebo Thank you for your testing.

@ikloecker indeed we try only for 5 seconds:

I think that the card reader is not connected and there is no Scardsvr at this time.
And the card reader connection to USB port results invoking Scardsvr. Then, "SCD SERIALNO --all" gets success.

For T6567 I changed the way that Kleopatra runs "gpgconf --launch gpg-agent". This change is not yet in Eva's test build. It seems my change is not good because running "gpgconf --launch gpg-agent" timed out after 5 seconds in 3 of 3 tests starting Kleopatra after a reboot of the VM. To check if "gpgconf --launch gpg-agent" really takes that long I measured the time in PowerShell after another reboot of the VM. The result is shocking.

Please note that a card insertion to a card reader and a card reader connection to PC are different things.
It may cause different results.

I put "scd" tag and let me claim this ticket.

The symptom of this bug was:

• there are multiple waiters for COND.
• COND is fired by npth_cond_broadcast, all waiters should be waken up, but only one wakes up by the old code of 1.7.
• other waiters keep waiting forever.

After I fixed the problem, I realized that the description of this ticket was not accurate, so, modified.

gpg4win 4 has been released with unicode support. Closing.

with gpg4win-Beta-50: "Rückstellcode" is shown correctly with an ü

This works now.

Well for 3.3 we will have full support for high contrast with the correct icons on all platforms, additionally we detect and support dark mode on all Windows 10 Versions > 1709 So this can be resolved. (Both for Qt5 and 6). What I have not yet checked if Qt6::systemInfo::colorScheme reports the correct one under windows 11 desert theme, but as you mention that is also part of a different issue where when then also should clean up the kleo systeminfo etc. if this is reliably supplied as information by qt.