I found the command line cited in GitHub <span style="font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; line-height: 25.6px;">Just </span>edit the config.txt file<span style="font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; line-height: 25.6px;">, and comment the line</span><br style="box-sizing: border-box; font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; line-height: 25.6px;" /><code style="box-sizing: border-box; font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 13.6px; padding: 0.2em 0px; margin: 0px; border-radius: 3px; background-color: rgba(0, 0, 0, 0.0392157);">hdmi_drive=2<br style="box-sizing: border-box; font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; line-height: 25.6px;" /><span style="font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; line-height: 25.6px;">with a # :</span><br style="box-sizing: border-box; font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; line-height: 25.6px;" /><code style="box-sizing: border-box; font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 13.6px; padding: 0.2em 0px; margin: 0px; border-radius: 3px; background-color: rgba(0, 0, 0, 0.0392157);">#hdmi_drive=2     # ------------ H - HERE IT IS - GLOBAL EMULATOR CONFIGURATION ------------ # ## The global value will be used for all emulators, exept if the value ## is redifined in the emulator   ## Set game resolution for emulators ## select your mode from the command : tvservice -m [MODE] ## CEA 5 HDMI : 1920x1080 @ 60Hz 16:9, clock:74MHz interlaced ## CEA 4 HDMI : 1280x720 @ 60Hz 16:9, clock:74MHz progressive ## use 'default' for using the default resolution ## (string) global.videomode=CEA 5 HDMI   ## Shader set ## Automatically select shaders for all systems ## (none, retro, scanlines) global.shaderset=none   ## Set gpslp shader for all emulators (prefer shadersets above). Absolute path (string) global.shaders=   ## Set ratio for all emulators (auto,4/3,16/9,16/10,custom) global.ratio=4/3   ## Set smooth for all emulators (0,1) global.smooth=1   ## Set rewind for all emulators (0,1) global.rewind=0   ## Set retroarch input driver (auto, udev, sdl2) ## If you don't have issues with your controllers, let auto global.inputdriver=auto   ## If you do not want recalboxOS to generate the configuration for all emulators (string) ;global.configfile=/path/to/my/configfile.cfg

I have a problem .... I am using a VGA adapter for HDMI, and system screen starts automatically, however if you leave the stop screen for a few minutes, the image disappears and only the sound is. Another problem is that when you choose the game, just listen to the sound and no picture. The monitor is quite old and 15 inches and as VGA output ... How can I fix?   Sorry for my English poorly.