The HPD pin and RX_SENSE registers have proven to be less reliable than using I2C on the EDID pins for detection of an HDMI monitor. In particular, when the HDMI output is reset through a "reboot" cycle, the detect_hdmi() routine often bounces, resulting in a failure to detect a connected monitor.
Signed-off-by: Eric Nelson eric.nelson@boundarydevices.com --- board/boundary/nitrogen6x/nitrogen6x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c index 115ee81..269d62e 100644 --- a/board/boundary/nitrogen6x/nitrogen6x.c +++ b/board/boundary/nitrogen6x/nitrogen6x.c @@ -500,10 +500,10 @@ static void enable_rgb(struct display_info_t const *dev) }
struct display_info_t const displays[] = {{ - .bus = -1, - .addr = 0, + .bus = 1, + .addr = 0x50, .pixfmt = IPU_PIX_FMT_RGB24, - .detect = detect_hdmi, + .detect = detect_i2c, .enable = do_enable_hdmi, .mode = { .name = "HDMI",