In 20.04.1 all gtk2 apps starts 25 seconds

[Gregor Snak]

I've installed Ubuntu 20.04.1 64bit today (three times as I was testing various different options). All GTK2 apps (for example gmrun, grun, anything compiled from lazarus with gtk2 target which is default) starts for 25 seconds. I ran strace to see what it was and I don't know. The 25s delay is at line containing the "(Timeout)" text.

$strace gmrun
...
fcntl(9, F_SETFL, O_RDWR|O_NONBLOCK) = 0
connect(9, {sa_family=AF_UNIX, sun_path="/run/user/1000/bus"}, 110) = 0
getpid() = 1972
geteuid() = 1000
getegid() = 1000
getpid() = 1972
geteuid() = 1000
getegid() = 1000
sendmsg(9, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\0", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=28, cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=1972, uid=1000, gid=1000}}], msg_controllen=32, msg_flags=0}, MSG_NOSIGNAL) = 1
sendto(9, "AUTH\r\n", 6, MSG_NOSIGNAL, NULL, 0) = 6
recvfrom(9, "REJECTED EXTERNAL\r\n", 4096, 0, NULL, NULL) = 19
sendto(9, "AUTH EXTERNAL 31303030\r\n", 24, MSG_NOSIGNAL, NULL, 0) = 24
recvfrom(9, "OK c0fd5f5eb963750ecf7ea86e5f329"..., 4096, 0, NULL, NULL) = 37
sendto(9, "NEGOTIATE_UNIX_FD\r\n", 19, MSG_NOSIGNAL, NULL, 0) = 19
recvfrom(9, "AGREE_UNIX_FD\r\n", 4096, 0, NULL, NULL) = 15
sendto(9, "BEGIN\r\n", 7, MSG_NOSIGNAL, NULL, 0) = 7
write(13, "\1\0\0\0\0\0\0\0", 8) = 8
eventfd2(0, EFD_CLOEXEC|EFD_NONBLOCK) = 12
write(12, "\1\0\0\0\0\0\0\0", 8) = 8
write(13, "\1\0\0\0\0\0\0\0", 8) = 8
poll([{fd=12, events=POLLIN}], 1, 25000) = 1 ([{fd=12, revents=POLLIN}])
read(12, "\1\0\0\0\0\0\0\0", 16) = 8
poll([{fd=12, events=POLLIN}], 1, 25000) = 0 (Timeout)
write(12, "\1\0\0\0\0\0\0\0", 8) = 8
futex(0x56295f4a8460, FUTEX_WAKE_PRIVATE, 2147483647) = 0
close(12) = 0
write(13, "\1\0\0\0\0\0\0\0", 8) = 8
futex(0x7f252fc59f38, FUTEX_WAKE_PRIVATE, 2147483647) = 0
futex(0x7f252fc59f38, FUTEX_WAKE_PRIVATE, 2147483647) = 0
statfs("/home/desktop", {f_type=EXT2_SUPER_MAGIC, f_bsize=4096, f_blocks=59255762, f_bfree=57420816, f_bavail=54393360, f_files=15122432, f_ffree=14879564, f_fsid={val=[600210708, 1196524894]}, f_namelen=255, f_frsize=4096, f_flags=ST_VALID|ST_RELATIME}) = 0
futex(0x7f252fc59f38, FUTEX_WAKE_PRIVATE, 2147483647) = 0
futex(0x7f252fc59f38, FUTEX_WAKE_PRIVATE, 2147483647) = 0
inotify_init1(IN_CLOEXEC) = 12
fcntl(12, F_GETFL) = 0 (flags O_RDONLY)
fcntl(12, F_SETFL, O_RDONLY|O_NONBLOCK) = 0

I've tried to find what fd 12 is and it seems to be this:

$ cat strace.log | grep -e Timeout -e open | grep -e 12 -e Timeout
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 12
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libproxy.so.1", O_RDONLY|O_CLOEXEC) = 12
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/gio/modules/libgiognomeproxy.so", O_RDONLY|O_CLOEXEC) = 12
poll([{fd=12, events=POLLIN}], 1, 25000) = 0 (Timeout)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0 (Timeout)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0 (Timeout)
poll([{fd=3, events=POLLIN}, {fd=4, events=POLLIN}, {fd=7, events=POLLIN}], 3, 0) = 0 (Timeout)

So maybe libgiognomeproxy.so? On other forum I got suggestion that maybe hostname is not in /etc/hosts but it is there:

127.0.0.1 localhost
127.0.1.1 desktop
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

This is how I installed ubuntu:

1. iso 20.04.1 amd64 on usb stick, tried bot SSD and normal hard drive
2. install ubntu in english
3. English (US), English (US)
4. Normal installation, Download updates, Install third party sw
5. Erase disk and install Ubuntu, Advanced features: Use LVM, Encrypt
6. 2x same password
7. Choose Bratislava location
8. Your Name: desktop
   Computer name: desktop
   username: desktop
   2x password
   Log in automatically
9. Wait for install to finish, restart, install updates, restart
10. Alt+F2 gnome terminal, sudo apt-get install gmrun
11. gmrun - it takes 20s to appear

[Thiago F. Pappacena (pappacena)]

Not a bug in Launchpad itself. Moving it to Ubuntu.

[Gregor Snak (gsnak)]

Solved by:

sudo apt-get install appmenu-gtk2-module
sudo apt-get install libcanberra-gtk-module
reboot

[Gregor Snak (gsnak)]

Also I found out that if I use other wm than unity I must manually run this: /usr/libexec/gsd-xsettings

[Gregor Snak (gsnak)]

I also had to put:

    export GTK_MODULES=gail:atk-bridge:appmenu-gtk-module

In ~/.profile to fix lazarus apps.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.