Will not boot - rasplex-RP-0.4.0-rc3 Help please

I have been trying unsuccessfully to get Rasplex to boot on my 512k Pi.  I have downloaded rasplex-RP-0.4.0-rc3.img.gz, used GatRasplex to install and my Pi will not boot.  I then extracted the file to get the disc image and used Win32DiscImager on my Win 7 pc to image another SD card.  Same  no boot.  The cards appear properly config with the appropriate files.  I have tried several different cards with the same result.

 

I know my PI works as it runs XMBC and Raspian just fine.  Boots normally.  I even flashed over one of the known working discs with same result.  Nothing.

 

I am using the composite vide output.  Does this work with that?  XBMC does.

 

I am stumped.  What am I missing.  This is a simple process but I cannot seem to get it working.

 

Bob Silver

 

Answered my self.  It was the video.  Composite does not work with Plex.  Only the HDMI!  Solved!

I have been trying unsuccessfully to get Rasplex to boot on my 512k Pi.  I have downloaded rasplex-RP-0.4.0-rc3.img.gz, used GatRasplex to install and my Pi will not boot.  I then extracted the file to get the disc image and used Win32DiscImager on my Win 7 pc to image another SD card.  Same  no boot.  The cards appear properly config with the appropriate files.  I have tried several different cards with the same result.

I know my PI works as it runs XMBC and Raspian just fine.  Boots normally.  I even flashed over one of the known working discs with same result.  Nothing.

I am using the composite vide output.  Does this work with that?  XBMC does.

I am stumped.  What am I missing.  This is a simple process but I cannot seem to get it working.

Bob Silver

Answered my self.  It was the video.  Composite does not work with Plex.  Only the HDMI!  Solved!

Actually it is a simple matter to make RasPlex work with a composite output. My brother used it this way for several months while he only had an old TV set without any HDMI ports.

The RPi firmware is capable of sensing whether or not an HDMI port is connected and can auto-switch to the composite output if not sensing any HDMI connection. But that is often a problem, if the RPi is started or reset before the TV set or when the TV is set to use another input port. The RPi would then start up in a low resolution of 480i or 576i (NTSC or PAL) on the composite port, even though the user most likely wanted it to use 1080p on HDMI. So to avoid that problem there are commands which can be placed in "config.txt" on the SD card which force the RPi to initialize and use the HDMI port, even if it is not sensed as connected at power-on/reset. And RasPlex has those commands in its default "config.txt".

So to use the Composite video port and the analog audio port with RasPlex you just need to make a few changes to "config.txt" as follows:

1: Search through the file after the string "hdmi_force_hotplug=1" and either change it to "hdmi_force_hotplug=0" or comment it out, so that the full line start with a '#' character eg: "#hdmi_force_hotplug=1".

2:  Similarily comment out any lines starting with "hdmi_drive". I'm not sure if it will cause any trouble without the other one, but best be safe...

3: Add some lines near the end of the file (so they override any other similar lines) to choose composite mode details, like this example:

## sdtv_mode=2 => normal PAL, sdtv_aspect=1 => 4:3 (2=>14:9, 3=>16:9)
sdtv_mode=2
sdtv_aspect=1
## CRT TVs need to skip some pixels at the edges of the theoretical screen
overscan_left=24
overscan_right=0
overscan_top=0
overscan_bottom=0
## We can also disable those settings (1) or allow them to take effect (0)
disable_overscan=0
 

That's about it. With that editing of the "config.txt" file you should be able to use a TV with just composite inputs.

Best regards: dlanor

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.