Starting from original Yocto based root file system provided [http://mirror.dave.eu/axel/xelk-3.0.1/xelk-3.0.1_dave-image-devel.tar.bz2 here], more packages need to be added for using the well known [https://www.realvnc.com/en/connect/download/viewer/ VNC] remote desktop (screen sharing) application.

* lcd panel is 800x480, so the command line is:

<pre class="board-terminal">root@axellite:~# x11vnc -noipv6 -rawfb /dev/fb0 -clip 800x480passwd qt5remote

<pre class="board-terminal">root@axellite:~# x11vnc -noipv6 -rawfb 14/dev02/fb0 -clip 800x480################################################################@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@##@ @##@ ** WARNING ** WARNING ** WARNING ** WARNING ** @##@ @##@ YOU ARE RUNNING X11VNC WITHOUT A PASSWORD!! @##@ @##@ This means anyone with network access to this computer @##@ may be able to view and control your desktop. @##@ @##@ >>> If you did not mean to do this Press CTRL-C now!! <<< @##@ @##@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@##@ @##@ You can create an x11vnc password file by running2018 09: @##@ @##@ x11vnc -storepasswd password /path/to/passfile @##@ or x11vnc -storepasswd /path/to/passfile @##@ or x11vnc -storepasswd @##@ @##@ (the last one will use ~/.vnc/passwd) @##@ @##@ and then starting x11vnc via50: @##@ @##@ x11vnc -rfbauth /path/43 passing arg to/passfile @##@ @##@ an existing ~/.vnc/passwd file from another VNC @##@ application will work fine too. @##@ @##@ You can also use the -passwdfile or -passwd options. @##@ (note -passwd is unsafe if local users are not trusted) @##@ @##@ Make sure any -rfbauth and -passwdfile password files @##@ cannot be read by untrusted users. @##@ @##@ Use x11vnc -usepw to automatically use your @##@ ~/.vnc/passwd or ~/.vnc/passwdfile password files. @##@ (and prompt you to create ~/.vnc/passwd if neither @##@ file exists.) Under -usepw, x11vnc will exit if it @##@ cannot find a password to use. @##@ @##@ @##@ Even with a password, the subsequent VNC traffic is @##@ sent in the clear. Consider tunnelling via ssh(1)libvncserver: @##@ @##@ http://www.karlrunge.com/x11vnc/#tunnelling @##@ @##@ Or using the x11vnc SSL options: -ssl and -stunnel @##@ @##@ Please Read the documention for more info about @##@ passwords, security, and encryption. @##@ @##@ http://www.karlrunge.com/x11vnc/faq.html#faq-passwd @##@ @##@ To disable this warning use the -nopw option, or put @##@ 'nopw' on a line in your ~/.x11vncrc file. @##@ @##@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@################################################################14/02/2018 0609:4450:20 43 x11vnc version: 0.9.13 lastmod: 2011-08-10 pid: 77536714/02/2018 0609:4450:20 43 Not opening DISPLAY in -rawfb mode (force via -rawfb +str)14/02/2018 0609:4450:20 43 Continuing without X display in -rawfb mode.14/02/2018 0609:4450:20 43 console_guess: file is /dev/fb014/02/2018 0609:4450:20 43 console_guess: file pipeinput CONSOLE014/02/2018 0609:4450:20 43 pipeinput: using linux console: /dev/tty014/02/2018 0609:4450:20 43 console_guess returned: map:/dev/fb0@800x480x16:f800/7e0/1f14/02/2018 0609:4450:20 43 raw fb is non-regular file: /dev/fb014/02/2018 0609:4450:20 43 rawfb: mmap file: /dev/fb014/02/2018 0609:4450:20 43 w: 800 h: 480 b: 16 addr: 0x7632f000 0x763df000 sz: 76800014/02/2018 06:44:20 *** ignoring invalid -clip WxH+X+Y: 800x48014/02/2018 0609:4450:20 43 pipeinput: using linux console: /dev/tty014/02/2018 0609:4450:20 43 initialize_screen: fb_depth/fb_bpp/fb_Bpl 16/16/160014/02/2018 0609:4450:204314/02/2018 0609:4450:20 43 Raw fb at addr 0x7632f000 0x763df000 is 16bpp depth=16 true color14/02/2018 0609:4450:204314/02/2018 0609:4450:20 43 Autoprobing TCP port14/02/2018 0609:4450:20 43 Autoprobing selected TCP port 590014/02/2018 0609:4450:20 43 Autoprobing TCP6 port14/02/2018 0609:4450:20 43 Autoprobing selected TCP6 port 590014/02/2018 0609:4450:20 43 Not listening on IPv6 interface.14/02/2018 0609:50:44:20 fb read rate: 99 79 MB/sec14/02/2018 06:4409:20 fast read: reset -wait ms to: 1014/02/2018 0650:44:20 fast read: reset -defer ms to: 1014/02/2018 06:44:20 screen setup finished.14/02/2018 06:44:2014/02/2018 06:44:20 WARNING: You are running x11vnc WITHOUT a password. See14/02/2018 0609:44:20 WARNING: the warning message printed above for more info.14/02/2018 0650:44:20

The VNC desktop is: imx6qxelkaxellite:0

On a Windows PC, it is possible to start a the VNC viewer, like [http://www.uvnc.com/downloads/ultravnc.html UltraVNC Viewer], and selecting the SBCX board's IP address:

On the target, the VNC server shows the remote connection is accepted:

14/02/2018 0609:4451:58 29 Got connection from client 192.168.0.2114/02/2018 0609:4451:58 29 other clients:14/02/2018 0609:4451:58 29 Normal socket connection14/02/2018 0609:4451:58 29 incr accepted_client=1 for 192.168.0.21:60116 62093 sock=914/02/2018 0609:4451:58 29 Client Protocol Version 3.814/02/2018 0609:4451:58 29 Protocol version sent 3.8, using 3.814/02/2018 0609:4451:58 29 rfbProcessClientSecurityType: executing handler for type 1214/02/2018 09:51:33 client useCopyRect: 192.168.0.21 014/02/2018 0609:4451:58 rfbProcessClientSecurityType33 client_set_net: returning securityResult for client rfb version >= 3192.168.0.21 0.8031014/02/2018 0609:4451:58 33 Pixel format for client 192.168.0.21:14/02/2018 0609:4451:58 33 16 bpp, depth 16, little endian14/02/2018 0609:4451:58 33 true colour: max r 31 g 63 b 31, shift r 11 g 5 b 014/02/2018 0609:4451:58 33 no translation needed14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0x0000000A)14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type zlibhex14/02/2018 0609:4451:58 33 Using compression level 6 for client 192.168.0.2114/02/2018 0609:4451:58 33 Enabling full-color cursor updates for client 192.168.0.2114/02/2018 0609:4451:58 33 Enabling cursor position updates for client 192.168.0.2114/02/2018 0609:4451:58 33 Using image quality level 6 for client 192.168.0.2114/02/2018 0609:4451:58 33 Using JPEG subsampling 0, Q79 for client 192.168.0.2114/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type xorEnable14/02/2018 0609:4451:58 33 Enabling LastRect protocol extension for client 192.168.0.2114/02/2018 0609:4451:58 33 Enabling NewFBSize protocol extension for client 192.168.0.2114/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type cacheEnable14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8000)14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8001)14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8002)14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8003)14/02/2018 0609:4451:58 33 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xC0A1E5CE)14/02/2018 0609:4451:58 33 Using ZRLE encoding for client 192.168.0.2114/02/2018 0609:4451:58 34 Pixel format for client 192.168.0.21:14/02/2018 0609:4451:58 34 16 bpp, depth 16, little endian14/02/2018 0609:4451:58 34 true colour: max r 31 g 63 b 31, shift r 11 g 5 b 014/02/2018 0609:4451:58 34 no translation needed14/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0x0000000A)14/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type zlibhex14/02/2018 0609:4451:58 34 Using compression level 6 for client 192.168.0.2114/02/2018 0609:4451:58 34 Enabling full-color cursor updates for client 192.168.0.2114/02/2018 0609:4451:58 34 Enabling cursor position updates for client 192.168.0.2114/02/2018 0609:4451:58 34 Using image quality level 6 for client 192.168.0.2114/02/2018 0609:4451:58 34 Using JPEG subsampling 0, Q79 for client 192.168.0.2114/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type xorEnable14/02/2018 0609:4451:58 34 Enabling LastRect protocol extension for client 192.168.0.2114/02/2018 0609:4451:58 34 Enabling NewFBSize protocol extension for client 192.168.0.2114/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8000)14/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8001)14/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8002)14/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xFFFF8003)14/02/2018 0609:4451:58 34 rfbProcessClientNormalMessage: ignoring unsupported encoding type Enc(0xC0A1E5CE)14/02/2018 0609:4451:58 34 Switching from ZRLE to hextile Encoding for client 192.168.0.2114/02/2018 0609:51:34 client 1 network rate 196.5 KB/sec (6073.7 eff KB/sec)14/02/2018 09:4451:58 34 client useCopyRect1 latency: 1.5 ms14/02/2018 09:51:34 dt1: 1920.1680669, dt2: 0.0605 dt3: 0.21 0015 bytes: 2486614/02/2018 09:51:34 link_rate: LR_UNKNOWN -1ms, 196 KB/s</pre>

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