começando com uma instalação precisa do servidor de 64 bits, configurei o seguinte;
sudo apt-get install lightdm x11vnc
sudo dpkg-reconfigure lightdm
em /etc/init/x11vnc.conf, eu coloquei;
start on login-session-start
script
/usr/bin/x11vnc -xkb -auth /var/run/lightdm/root/:0 -noxrecord -noxfixes -noxdamage -forever -bg -rfbport 5900 -o /var/log/x11vnc.log
end script
Usando o UltraVNC a partir do Windows, conecto e insiro informações válidas de login e a janela é fechada imediatamente. O log do vnc mostra;
30/04/2013 16:52:01 Got connection from client 10.0.2.2
30/04/2013 16:52:01 other clients:
30/04/2013 16:52:01 Disabled X server key autorepeat.
30/04/2013 16:52:01 to force back on run: 'xset r on' (3 times)
30/04/2013 16:52:01 incr accepted_client=1 for 10.0.2.2:61281 sock=8
30/04/2013 16:52:01 Client Protocol Version 3.8
30/04/2013 16:52:01 Protocol version sent 3.8, using 3.8
30/04/2013 16:52:01 rfbProcessClientSecurityType: executing handler for type 1
30/04/2013 16:52:01 rfbProcessClientSecurityType: returning securityResult for client rfb version >= 3.8
30/04/2013 16:52:01 copy_tiles: allocating first_line at size 33
30/04/2013 16:52:02 Pixel format for client 10.0.2.2:
30/04/2013 16:52:02 32 bpp, depth 24, little endian
30/04/2013 16:52:02 true colour: max r 255 g 255 b 255, shift r 16 g 8 b 0
30/04/2013 16:52:02 no translation needed
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0x0000000A)
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type zlibhex
30/04/2013 16:52:02 Using compression level 6 for client 10.0.2.2
30/04/2013 16:52:02 Enabling X-style cursor updates for client 10.0.2.2
30/04/2013 16:52:02 Enabling full-color cursor updates for client 10.0.2.2
30/04/2013 16:52:02 Enabling cursor position updates for client 10.0.2.2
30/04/2013 16:52:02 Using image quality level 6 for client 10.0.2.2
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type xorEnable
30/04/2013 16:52:02 Enabling LastRect protocol extension for client 10.0.2.2
30/04/2013 16:52:02 Enabling NewFBSize protocol extension for client 10.0.2.2
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type cacheEnable
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8000)
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8001)
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8002)
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8003)
30/04/2013 16:52:02 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xC0A1E5CE)
30/04/2013 16:52:02 Using ZRLE encoding for client 10.0.2.2
30/04/2013 16:52:03 Pixel format for client 10.0.2.2:
30/04/2013 16:52:03 32 bpp, depth 24, little endian
30/04/2013 16:52:03 true colour: max r 255 g 255 b 255, shift r 16 g 8 b 0
30/04/2013 16:52:03 no translation needed
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0x0000000A)
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type zlibhex
30/04/2013 16:52:03 Using compression level 6 for client 10.0.2.2
30/04/2013 16:52:03 Enabling X-style cursor updates for client 10.0.2.2
30/04/2013 16:52:03 Enabling full-color cursor updates for client 10.0.2.2
30/04/2013 16:52:03 Enabling cursor position updates for client 10.0.2.2
30/04/2013 16:52:03 Using image quality level 6 for client 10.0.2.2
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type xorEnable
30/04/2013 16:52:03 Enabling LastRect protocol extension for client 10.0.2.2
30/04/2013 16:52:03 Enabling NewFBSize protocol extension for client 10.0.2.2
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8000)
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8001)
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8002)
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8003)
30/04/2013 16:52:03 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xC0A1E5CE)
30/04/2013 16:52:03 Switching from ZRLE to hextile Encoding for client 10.0.2.2
30/04/2013 16:52:03 client_set_net: 10.0.2.2 0.0015
caught XIO error:
30/04/2013 16:52:07 deleted 32 tile_row polling images.
tail: x11vnc.log: file truncated
30/04/2013 16:52:08 passing arg to libvncserver: -rfbport
30/04/2013 16:52:08 passing arg to libvncserver: 5900
Alguma idéia do que está faltando?
O problema acaba sendo relativamente simples, eu não tinha instalado um provedor de desktop subjacente. Além disso, meu aparelho não tem placa de vídeo nem driver de vídeo, portanto, nenhum buffer de quadro no qual renderizar.
A solução que funcionou para mim foi encontrada em este post .
Eu finalmente resolvi esse problema mudando o gerenciador de desktop de lightdm para gdm .
aqui está uma instrução detalhada: Como faço para mudar de LightDM para GDM?