try this hack

thomasjball · thomasjball · commit 290c97d20d4b · 2025-11-16T16:44:11.000Z
diff --git a/cpp/jddisplay.cpp b/cpp/jddisplay.cpp
@@ -251,13 +251,9 @@ void JDDisplay::step(bool sendImage) {
             if (!jd_shift_frame(&recvFrame))
                 break;
         }
-        if (!sendImage) {
-            sendDone(this);
-            return;
-        }
     }
 
-    if (displayServiceNum == 0) {
+    if (displayServiceNum == 0 || !sendImage) {
         // poke the control service to enumerate
         queuePkt(JD_SERVICE_NUMBER_CTRL, JD_CMD_ADVERTISEMENT_DATA, 0);
         flushSend();

Original file line number	Diff line number	Diff line change
`@@ -251,13 +251,9 @@ void JDDisplay::step(bool sendImage) {`
`251`	`251`	`if (!jd_shift_frame(&recvFrame))`
`252`	`252`	`break;`
`253`	`253`	`}`
`254`		`- if (!sendImage) {`
`255`		`- sendDone(this);`
`256`		`- return;`
`257`		`- }`
`258`	`254`	`}`
`259`	`255`
`260`		`- if (displayServiceNum == 0) {`
	`256`	`+ if (displayServiceNum == 0 \|\| !sendImage) {`
`261`	`257`	`// poke the control service to enumerate`
`262`	`258`	`queuePkt(JD_SERVICE_NUMBER_CTRL, JD_CMD_ADVERTISEMENT_DATA, 0);`
`263`	`259`	`flushSend();`