I just cannot make it output anything on HDMI, the microsd card has been swapped and tested on a kncminer that runs a similar raspberry pi, if not in fact identical. So after my initial purchase of the Raspberry Pi Model B (The biggest model, quad core and 1gb ram) Or you could have just read the R-Pi Troubleshooting Guide like I did when fixing the same HDMI problem in just a couple of minutes: However it might simply be that the display requires a stronger signal than the Pi can give.
If you see a problem with the red colour - either absent, or interference - then try a boost. Make sure your Pi's power supply delivers 1A and not 500mA. Using a shorter or better quality HDMI cable might help. If the display is a computer monitor, use hdmi_group=1 and if it is an older TV, try hdmi_group=2.ĭo not set hdmi_safe=1 as that overrides many of the previous options. You might also need to set config_hdmi_boost=4 or even higher (up to 9) if your display needs a stronger signal. Setting the hdmi_force_hotplug=1 makes sure the Pi believes the monitor/TV is really there. Some devices may not immediately notice the Pi's HDMI or may not do the negotiation.
The Pi outputs a relatively weak HDMI signal. Sshipway wrote:I've investigated a problem similar to this one for a couple of weeks now.
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