[pkg-gnupg-maint] Bug#848999: pinentry-gtk2: Fails to work, appears as gpg-agent not working

[Roland Hieber]

Package: pinentry-gtk2
Version: 1.0.0-1
Followup-For: Bug #848999

I can confirm that behaviour, the pinentry-gtk2 window only flashes up shortly
and then closes, but pinenetry-ncurses and -gnome3 work fine. The last time it
worked for me was on Jan 1st 2017 with Enigmail. It also doesn't work for me
after a reboot, and I haven't changed anything related to my setup since then
(if you want to see, have a look at https://github.com/rohieb/dotfiles/tree/r2d2
;-))

Here's a session transcript:

	$ sudo login
	r2d2 login: rohieb
	Password: 

	$ echo $GPG_TTY
	/dev/pts/7
	$ tty
	/dev/pts/7
	$ gpgconf --kill gpg-agent
	$ ps -Af|grep gpg-agent
	rohieb   23122 21990  0 02:43 pts/7    00:00:00 grep --color=auto gpg-agent
	$ echo foobar | gpg --sign

(at this point, pinentry-ncurses window pops up normally, but choosing "Cancel")

	gpg: using "DD2C3FEA" as default secret key for signing
	gpg: signing failed: Operation cancelled
	£ÀËÌÀŸÉÑ&í®ý+ÆӼI
									3Óòó¸gpg: signing failed: Operation cancelled
	$ 
	$ export DISPLAY=:0 XAUTHORITY=~/.Xauthority
	$ echo foobar | gpg --sign

(pinentry-gtk2 window flashes up, closes directly)

	gpg: using "DD2C3FEA" as default secret key for signing
	gpg: signing failed: Operation cancelled
	£ÀËÌÀŸÉÑ&í®ý+ÆӼI
									3¥åç'%qgpg: signing failed: Operation cancelled
	$ 

But maybe this is of interest, also with short window flashing as before:

	$ echo GETPIN | pinentry-gtk-2
	OK Pleased to meet you

	** (pinentry-gtk-2:30108): CRITICAL **: could not grab keyboard: not viewable (3)

	** (pinentry-gtk-2:30108): WARNING **: it took 4097 tries to grab the keyboard

	** (pinentry-gtk-2:30108): WARNING **: it took 1795 tries to grab the pointer
	ERR 83886179 Operation cancelled <Pinentry>
	$

However, my usual workaround for those keyboard grabbing errors (changing to a
tty, then changing back to X) did not solve that issue. Neither did export
GTK_IM_MODULE="", or killing ibus-daemon, to maybe work around ibus issues.

 - Roland

-- System Information:
Debian Release: stretch/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing'), (170, 'unstable'), (1, 'unstable-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.8.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages pinentry-gtk2 depends on:
ii  libassuan0     2.4.3-2
ii  libc6          2.24-8
ii  libglib2.0-0   2.50.2-2
ii  libgpg-error0  1.25-2
ii  libgtk2.0-0    2.24.31-1
ii  libncursesw5   6.0+20161126-1
ii  libsecret-1-0  0.18.5-2
ii  libtinfo5      6.0+20161126-1

pinentry-gtk2 recommends no packages.

Versions of packages pinentry-gtk2 suggests:
ii  pinentry-doc  1.0.0-1

-- no debconf information