ZWO driver conflict with CGEM-DX in Ekos

[Peter Amerl]

Hi All, 
I have also noticed issues wiht these while attempting to auto-guide in Ekos. I have a ZWO 385MC and the Celestron CGEM-DX mount. 
When auto-guiding using either the Ekos module or PHD2 through Ekos, after a few minutes of guiding, the mount appears to slew (at the guide correction rate) in one direction continuously. 
This behaviour continues even when I choose to cancel guiding. The only way I can get the system to stabilise again is to restart the indi server by shutting-down Kstars/Ekos. At that time it usually looses the calibration and the guiding has to re-calibrate. (The latter may be user error.)
I have tried a variety of combinations of connecting the ZWO on its own USB port or the mount on a separate port, or running it all from a USB hub but with effectively no change in behaviour.
In one of the previous versions this was not occurring (perhaps 3.4.6/8?) not sure which version as this was last year some time. 

Cheers,
Peter


> 
> Message: 1
> Date: Sun, 20 Jun 2021 18:22:36 +0200
> From: Wolfgang Reissenberger <sterne-jaeger at openfuture.de>
> To: Wolfgang Reissenberger <sterne-jaeger at openfuture.de>
> Cc: Wayne Hall <methiasmail at gmail.com>, Luca Nerli
> 	<lunerli54 at gmail.com>, KStars Development Mailing List
> 	<kstars-devel at kde.org>
> Subject: Re: ZWO driver conflict with Eq6R in Ekos
> Message-ID: <789D2258-308D-46C4-B01B-87C2B6F92EA7 at openfuture.de>
> Content-Type: text/plain; charset="utf-8"
> 
> Meanwhile I have the impression that big sensors create too much strain onto our tiny little Raspberry Pi - even RPI 4. I switched to an Intel NUC and the problems disappeared.
> 
>> Am 15.06.2021 um 21:25 schrieb Wolfgang Reissenberger <sterne-jaeger at openfuture.de>:
>> 
>> Problem confirmed, it see also a conflict with ASI 6200 mm, ASI-120mini AND some mounts. In my example, I have an Avalon StarGO mount which creates the conflict. As soon as I shift the mount to a separate Raspberry, the problem disappears.
>> 
>> @Luca: if you have a second Raspberry, use them in parallel where the mount is connected to one of them and the ASI cameras to the other one. Since INDI is capable using several indiserver instances, there is a more or less straight forward workaround.
>> 
>> Wolfgang
>> 
>>> Am 15.06.2021 um 21:02 schrieb Wayne Hall <methiasmail at gmail.com <mailto:methiasmail at gmail.com>>:
>>> 
>>> As another data point for this problem, I haven't seen this behavior on my ASI 1600MM Cool and ASI 290MM. The 290MM is connected to the 1600MM hub, 1s exposures for guiding. Not sure if this helps or is just noise
>>> 
>>> Also running EQMod driver for my EQ6 mount
>>> 
>>> On Tue, Jun 15, 2021 at 7:05 PM Wolfgang Reissenberger <sterne-jaeger at openfuture.de <mailto:sterne-jaeger at openfuture.de>> wrote:
>>> Hi Luca,
>>> Maybe we have a similar problem. My ASI-120mini freezes when running captures in parallel to my new ASI 6200mm. I haven’t investigated it entirely, but at least when the guiding camera is connected to the USB hub of the ASI 6200mm, the problem occurs.
>>> 
>>> I guess the problem is independent from Kstars, this should be an INDI driver problem. Which OS do you use?
>>> 
>>> Wolfgang
>>> 
>>>> Am 15.06.2021 um 11:27 schrieb Luca Nerli <lunerli54 at gmail.com <mailto:lunerli54 at gmail.com>>:
>>>> 
>>>> Hello,
>>>> 
>>>> I use Kstars 3.5.2 on RPI 4 8 giga, I have 2 ZWO cameras, the 385 MC, that I use as an autoguider and the 2600 MC as the main camera. With this Kstars version I am experiencing a conflict between the EQ6R driver with Equdir and the driver of the 385. It is impossible to take pictures with times lower than a second, while the 2600 has no problems. If I momentarily disconnect the EQ6, the 385 resumes shooting in any weather. I thank those who wanted to consider this small problem which, however, becomes great for planetary photos. Thank you and greetings
>>>> 
>>>> Luca
>>>> 
>>>> Nerli Luca
>>>> lunerli54 at gmail.com <mailto:lunerli54 at gmail.com>GAMP Gruppo Atrofili Montagna Pistoiese
>>>> 3357286011
>>>>