Thank you, this installer is working now. :-)
But now I have the same problem with the main program - it is working with my mpv (and it's great, although my hardware is a bit weak) but I can't see any application window, only notification inside video screen of mpv.
Startup log of XVPManager:
14:06:12.148 [i]: Main: starting up SVP 4 Linux [4.0.0.91]...
14:06:12.148 [i]: Main: args: none
14:06:12.148 [i]: Main: working dir is /home/besitzer/SVP 4/
14:06:12.148 [i]: Main: data dir set to /home/besitzer/.local/share/SVP4/
14:06:12.148 [i]: Settings: loading reg.cfg OK
14:06:12.149 [i]: Settings: loading main.cfg OK
14:06:12.149 [i]: Settings: loading ui.cfg OK
14:06:12.150 [i]: Settings: loading frc.cfg OK
14:06:12.150 [i]: Settings: loading profiles.cfg OK
14:06:12.150 [i]: Settings: loading custom.cfg OK
14:06:12.150 [i]: Settings: loading lights.cfg OK
14:06:12.150 [i]: Main: using Qt 5.7.0 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC 6.1.1 20160707)
14:06:12.151 [i]: Main: device scale is 1, user defined scale is 0
14:06:12.151 [i]: Main: system locale is [de]
14:06:12.151 [i]: Main: setting language file to de.qm...
14:06:12.152 [i]: Main: module 'plugins/libsvpflow1_vs64.so': 4.0.0.132
14:06:12.154 [i]: Main: module 'plugins/libsvpflow2_vs64.so': 4.0.0.137
14:06:12.158 [i]: Main: running OpenCL info...
14:06:12.160 [i]: Main: collecting system information...
14:06:12.167 [i]: OS: Linux 4.7.2-1-zen #1 ZEN SMP PREEMPT Sat Aug 20 20:36:46 UTC 2016 x86_64
14:06:12.217 [i]: Display manager: /usr/bin/sddm / /usr/share/xsessions/plasma
14:06:12.218 [i]: CPU: Intel Pentium N3700 [base frequency 2400 MHz, 4 threads]
14:06:12.275 [i]: Video: 0 GPU OpenCL device(s) on Clover [OpenCL 1.1 Mesa 12.1.0-devel (git-0d7ec8b)] (Mesa)
14:06:12.275 [i]: Memory: 1923 MB total, 1377 MB free
14:06:12.275 [i]: System: initializing network...
14:06:12.305 [W]: Screens: unknown screen size, assuming 1366x768
14:06:12.305 [i]: Screens: updating information, 1 screen(s) found
14:06:12.305 [i]: Screens: screen 0 (HDMI-2) - 1366x768 @60.000 Hz, xinf [96 DPI]
14:06:12.306 [i]: Screens: primary screen is 0
14:06:12.306 [i]: Power: AC is ON [1]
14:06:12.533 [W]: QWidget::setMinimumSize: (/ControlPanel) Negative sizes (-2147483648,0) are not possible
14:06:12.534 [W]: QWidget::setMaximumSize: (/ControlPanel) Negative sizes (-2147483648,16777215) are not possible
14:06:12.534 [W]: QWidget::setMinimumSize: (/ControlPanel) Negative sizes (0,-2147483648) are not possible
14:06:12.535 [W]: QWidget::setMaximumSize: (/ControlPanel) Negative sizes (0,-2147483648) are not possible
14:06:12.543 [i]: Main: preparing FRC profiles...
14:06:13.508 [i]: Main: preparing performance graphs...
14:06:13.515 [W]: QWidget::setMinimumSize: (/ControlPanel) Negative sizes (-2147483648,0) are not possible
14:06:13.515 [W]: QWidget::setMaximumSize: (/ControlPanel) Negative sizes (-2147483648,16777215) are not possible
14:06:13.515 [W]: QWidget::setMinimumSize: (/ControlPanel) Negative sizes (0,-2147483648) are not possible
14:06:13.515 [W]: QWidget::setMaximumSize: (/ControlPanel) Negative sizes (0,-2147483648) are not possible
14:06:13.846 [W]: QWidget::setMinimumSize: (StatusWnd/StatusWnd) Negative sizes (-2147483648,0) are not possible
14:06:13.846 [W]: QWidget::setMaximumSize: (StatusWnd/StatusWnd) Negative sizes (-2147483648,16777215) are not possible
14:06:13.847 [i]: Main: preparing mpv...
14:06:13.890 [i]: Main: preparing remote control...
14:06:13.890 [i]: RemoteControl: started
14:06:13.890 [i]: Main: preparing main menu...
14:06:14.165 [i]: Main: loading extensions...
14:06:14.168 [i]: Extensions: found svplight 2.0.0.85 ...
14:06:14.170 [i]: Settings: loading leds.cfg OK
14:06:14.389 [i]: Main: initialization completed in 2229 ms
14:06:14.423 [i]: Updates: checking now...
14:06:16.684 [i]: Performance: quick estimation = 101 (previous value was 101)
14:06:16.736 [W]: QXcbConnection: XCB error: 2 (BadValue), sequence: 505, resource id: 0, major code: 1 (CreateWindow), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 506, resource id: 10485765, major code: 2 (ChangeWindowAttributes), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 507, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 508, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 509, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 511, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 512, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 513, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 517, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 521, resource id: 10485765, major code: 2 (ChangeWindowAttributes), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 522, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 525, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 526, resource id: 10485765, major code: 20 (GetProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 530, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.736 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 531, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
14:06:16.737 [W]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 534, resource id: 10485765, major code: 18 (ChangeProperty), minor code: 0
My screen size is actually 1920x1080, e.g. xrandr does detect it correctly.