Comment 0 for bug 1353353

1. Install vnc-client-remmina
2. Try to load remmina:

~$ remmina
Failed to load plugin: /usr/lib/remmina/plugins/remmina-plugin-vnc.so.
Remmina plugin RDP (type=Protokols) registered.
Remmina plugin RDPF (type=Datne) registered.
Remmina plugin RDPS (type=Iestatījums) registered.
Remmina plugin SFTP (type=Protokols) registered.
Remmina plugin SSH (type=Protokols) registered.
Plugin not found (type=0, name=VNC)

lsb_release -rd
Description: Ubuntu Utopic Unicorn (development branch)
Release: 14.10

ls -l /usr/lib/remmina/plugins/
total 112
-rw-r--r-- 1 root root 70136 jūl 15 2013 remmina-plugin-rdp.so
-rw-r--r-- 1 root root 40408 jūl 15 2013 remmina-plugin-vnc.so

md5sum /usr/lib/remmina/plugins/remmina-plugin-vnc.so
371ff9346b38e83c36a0e746d6938a5c

md5sum /var/cache/apt/archives/remmina-plugin-vnc_1.0.0-4ubuntu3_amd64.deb
26a7ca02212bf0614234d3f6c27e4e4b (same as in http://packages.ubuntu.com/utopic/amd64/remmina-plugin-vnc/download )

apt-cache policy remmina-plugin-vnc
remmina-plugin-vnc:
  Instalēts: 1.0.0-4ubuntu3
  Kandidāts: 1.0.0-4ubuntu3
  Versiju tabula:
 *** 1.0.0-4ubuntu3 0
        500 http://archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages
        100 /var/lib/dpkg/status

~$ strace remmina
(..)
stat("/usr/lib/remmina/plugins/remmina-plugin-vnc.so", {st_mode=S_IFREG|0644, st_size=40408, ...}) = 0
open("/usr/lib/remmina/plugins/remmina-plugin-vnc.so", O_RDONLY|O_CLOEXEC) = 11
read(11, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0006\0\0\0\0\0\0"..., 832) = 832
fstat(11, {st_mode=S_IFREG|0644, st_size=40408, ...}) = 0
mmap(NULL, 2136600, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 11, 0) = 0x7ff3d055a000
mprotect(0x7ff3d0563000, 2093056, PROT_NONE) = 0
mmap(0x7ff3d0762000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 11, 0x8000) = 0x7ff3d0762000
close(11) = 0
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 11
fstat(11, {st_mode=S_IFREG|0644, st_size=192843, ...}) = 0
mmap(NULL, 192843, PROT_READ, MAP_PRIVATE, 11, 0) = 0x7ff3de8b9000
close(11) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/tls/x86_64/libvncclient.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

(..)

3. manually install libvncclient0
4. Remmina starts working as expected
~$ remmina
Remmina plugin VNC (type=Protokols) registered.
Remmina plugin VNCI (type=Protokols) registered.
Remmina plugin RDP (type=Protokols) registered.
Remmina plugin RDPF (type=Datne) registered.
Remmina plugin RDPS (type=Iestatījums) registered.
Remmina plugin SFTP (type=Protokols) registered.
Remmina plugin SSH (type=Protokols) registered.