peddanet wrote: > Hi Paul, > may I ask you a question? > > I totally understood the policy here, but could you tell me where to > find for example the description of these parameters (especially the > bold ones): > > ==== > display_rotate=2 > max_usb_current=1 > HDMI_FORCE_HOTPLUG=1 > CONFIG_HDMI_BOOST=7 > HDMI_GROUP=2 > HDMI_MODE=1 > HDMI_MODE=88 > hdmi_drive=1 > HDMI_CVT 1024 600 60 6 0 0 0 > ==== > hdmi_group=2 > hdmi_mode=87 > HDMI_TIMINGS=1080 1 26 4 50 1920 1 8 2 6 0 0 0 60 0 135580000 3 > ===== > DTOVERLAY=PISCREEN,SPEED=24000000,ROTATE=90 > ===== > > Why do they sometimes apply, sometimes not (for example > dtoverlay=[...]rotate=180 did not work as far as my experiences). What > is the related driver and what its API? Which busses are involved and > how to find out which one is served by the disply actually? BTW are > there any schematics on the pi? > > And if you see the hdmi timings, how would you achieve to derive them > from what? Guessing?? > > Happy to look forward your answer! > > BR Peter
Here would be a good place to start: https://www.raspberrypi.com/documentation/computers/config_txt.html#video-options ------------------------------------------------------------------------ Yatsushiro's Profile: http://forums.slimdevices.com/member.php?userid=66935 View this thread: http://forums.slimdevices.com/showthread.php?t=115743 _______________________________________________ diy mailing list diy@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/diy
