Bug 434607

Summary:	Kstars 3.5.2 Cannot Connect to iOptron CEM40 Mont
Product:	[Applications] kstars	Reporter:	MountainAirCA
Component:	general	Assignee:	Jasem Mutlaq <mutlaqja>
Status:	RESOLVED WORKSFORME
Severity:	critical
Priority:	NOR
Version First Reported In:	3.5.2
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description MountainAirCA 2021-03-19 06:08:49 UTC

SUMMARY

Dead in the water: The latest Kstars 3.5.2 cannot seem to connect to my iOptron CEM40 mount.  It worked fine on 3.5.1.

I tried different cables, different cable configurations, different ports, power cycling everything, etc.  Once I ran out of ideas with StellarMate, I tried 3.5.2 on the Mac and it had the same issue.

STEPS TO REPRODUCE
1. Create a new profile with iOptron CEM40 and a camera.
2. Connect to profile.
3. Note error.

OBSERVED RESULT

[ERROR] Read Command Error: Timeout error
[INFO] Trying connecting to /dev/ttyUSB1 @ 9600 ...
[WARNING] Port /dev/ttyUSB1 is already used by another driver or process.

EXPECTED RESULT

Connection should succeed.  While in the past I occasionally saw the error above, trying to re-connect would always work.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 MountainAirCA 2021-03-19 07:42:20 UTC

I had a copy of 3.5.0 for Mac, and that was able to connect.  Also, I noticed that Indi moved to "V3" drivers, so I tried upgrading my mount and hand controller firmware with the latest packages.  That unfortunately did not allow Kstars 3.5.2 to connect.

Comment 2 Jasem Mutlaq 2021-03-19 10:05:26 UTC

Baud rate set to 115200?

Comment 3 MountainAirCA 2021-03-19 12:31:27 UTC

9600, just confirmed that’s what the connection tab is set to.

Comment 4 MountainAirCA 2021-03-24 01:19:10 UTC

Any update on this issue?  I just tried again.  Out of many retries, I was able to get connected once, but there were all kinds of strange errors and it was unusable.  I did manage to get it to slew, but it took several seconds then I couldn't stop it.  This attempt did start at 115.2k:

2021-03-23T22:29:05: [INFO] iOptron CEM40 is offline. 
2021-03-23T22:29:05: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:29:01: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:45: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:41: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:38: [ERROR] Failed to set longitude. 
2021-03-23T22:28:38: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:35: [ERROR] Error setting local time. 
2021-03-23T22:28:35: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:32: [INFO] Device configurat2021-03-23T22:28:49: [ERROR] Serial read error: Timeout error. 
ion saved. 2021-03-23T22:28:57: [ERROR] Serial read error: Timeout error. 
 
2021-03-23T22:28:32: [INFO] Saving device configuration... 
2021-03-23T22:28:32: [INFO] Device configur2021-03-23T22:28:53: [ERROR] Serial read error: Timeout error. 
ation saved. 
2021-03-23T22:28:32: [INFO] Saving device configuration... 
2021-03-23T22:28:32: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:29: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:26: [INFO] Mount is unparked. 
2021-03-23T22:28:26: [INFO] InitPark: No Park data in file /Users/brettnordby/.indi/ParkData.xml: No park data found for this device 
2021-03-23T22:28:26: [INFO] Mount Longitude 242.366 Latitude -88.7647 
2021-03-23T22:28:26: [ERROR] Serial read error: Timeout error. 
2021-03-23T22:28:23: [INFO] iOptron CEM40 is online. 
2021-03-23T22:21:30: [INFO] Scan complete. Found 4 port(s). 

Again, this works fine with KStars 3.5.0.

Comment 5 MountainAirCA 2021-03-25 19:53:15 UTC

Much to my chagrin, this started working.  I'm not sure why.  I did reinstall KStars on the Mac, and built a new Ubuntu VM on the Mac... but StellarMate is in the same state as it was when I was out in the field having connection failures.  Suddenly, it connects just fine.  I did reboot the Mac for another reason, but that's probably not it.

I have no idea.  To verify this works under multiple configurations, I tried three different machines, three different USB 2 cables (all ~6ft), direct connections and those through the Pocket Power Box Advance, with and without cameras/efw/etc and they all work.  At this point after all this troubleshooting, I'm not sure what happened.

Sorry about this.