On Tue, 08 Jul 2014 08:22:29 +0900 [email protected] wrote: > Would you please to explain more about the meaning of: > > > hdmi_group=2 > > hdmi_mode=87
These magic numbers were gleaned from http://www.raspberrypi.org/forums/viewtopic.php?f=38&t=79330 config.txt is documented at http://elinux.org/RPi_config.txt Not sure how complete it is as they add more stuff for new firmware capabilities etc. hdmi_mode=87 is brand new and not yet in the above document. Somre more details at http://www.raspberrypi.org/forums/viewtopic.php?t=5851 There are two commands under Raspbian, tvservice and edidparser. Together they can be used to dump out what a display returns in terms of the modes it supports etc. > > config_hdmi_boot=4 Sorry, this should be config_hdmi_boost=4 It boosts the HDMI signal strength. Normal signal strength may not be enough if the hdmi cable is long.
