{"id":35094,"date":"2022-06-25T04:50:05","date_gmt":"2022-06-25T04:50:05","guid":{"rendered":"http:\/\/pcbjunkie.net\/?page_id=35094"},"modified":"2022-06-25T04:50:05","modified_gmt":"2022-06-25T04:50:05","slug":"pj-disable-jamma-video-and-use-hdmi-instead","status":"publish","type":"page","link":"https:\/\/pcbjunkie.net\/index.php\/pj-disable-jamma-video-and-use-hdmi-instead\/","title":{"rendered":"PJ \u2013 Disable JAMMA video and use HDMI instead"},"content":{"rendered":"\n<p>This short guide will allow you to PJ in situations where a HDMI capable monitor is used. Instead of using the DPI video through the Raspberry Pi\u2019s GPIO header and connecting the monitor to the JAMMA harness, the monitor will need to be connected to the Raspberry Pi\u2019s HDMI port directly. DPI video output will be disabled which will not generate any video at the JAMMA interface.<\/p>\n\n\n\n<p>Write your image to the SD card as normal. When finished, take the SD card out of your PC and insert it back in. You should see a boot directory under the drive representing the SD card. Go into the directory and find a file called config.txt. Make a copy of it so you can replace it if&nbsp;something goes wrong. Next, you will need to edit this file so you will need to open it with Wordpad.<\/p>\n\n\n\n<p>Comment out (disable) the following settings by putting a \u2018#\u2019 in front of the following lines:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><br>dtoverlay=vga565<br>enable_dpi_lcd=1<br>display_default_lcd=1<br>framebuffer_width=320<br>framebuffer_height=240<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">dpi_group=2<br>dpi_mode=87<br>dpi_output_format=19<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">framebuffer_depth=16<br>framebuffer_ignore_alpha=1<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">hdmi_timings=320 1 16 20 44 240 1 &nbsp;2 &nbsp;4 16 &nbsp;0 &nbsp;0 &nbsp;0 60 0 6400000 1 #240p - works with no overscan corrections<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">overscan_scale=0<br>disable_overscan=1<\/pre>\n\n\n\n<p>Save the file, eject and take your card out of your PC and insert it back into the Raspberry Pi. On bootup, you should now see video on the HDMI monitor.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This short guide will allow you to PJ in situations where a HDMI capable monitor is used. Instead of using the DPI video through the Raspberry Pi\u2019s GPIO header and connecting the monitor to the JAMMA harness, the monitor will need to be connected to the Raspberry Pi\u2019s HDMI port directly. DPI video output will &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/pcbjunkie.net\/index.php\/pj-disable-jamma-video-and-use-hdmi-instead\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;PJ \u2013 Disable JAMMA video and use HDMI instead&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-35094","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/pages\/35094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/comments?post=35094"}],"version-history":[{"count":1,"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/pages\/35094\/revisions"}],"predecessor-version":[{"id":35095,"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/pages\/35094\/revisions\/35095"}],"wp:attachment":[{"href":"https:\/\/pcbjunkie.net\/index.php\/wp-json\/wp\/v2\/media?parent=35094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}