I've been searching through the forum looking for the polar alignment issue that I had last night (not easy with a limit of 20 results). In any case, I had an issue with the polar alignment refresh last night that seems similar to the one reported here. Although I did not get any crashes, I did have problems with the FITS Viewer refresh during polar alignment.

The main issue seemed to be that the FITS viewer would not refresh. I went through the PA tool multiple times, I'd get to the PA result, toggle to the full screen FITS Viewer, select a star, Alt-Tab back to the PA tool, click Next then click refresh and although the "Image #" was incrementing every second the FITS viewer was not refreshing the image. Hard to do the alignment without the refresh.

I had used the PA tool the night before without issue so I was trying figure out what I changed to break it. Ultimately it seemed to be related to using dark images. The previous evening I did not used Dark images and earlier in the day I had created a set of new dark images using the Dark Library tool. So, I had enabled the dark check box on the Align tool. As soon as I unchecked the Dark box the FITS Viewer refresh started working again.

Another note, it seems that the KStars 3.5.8 version now has a minimum refresh of 1.0 second. I'm pretty sure I used to use 0.5 seconds with Update PA Error on.

I'm using KStars 3.5.8 on Ubuntu 20.04.4 LTS. Guide camera is QHYCCD QHY5 III 178C.

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Tunafish replied to the topic 'How I lost whole night if imaging' in the forum. 5 months ago

This also happened to me a couple months back but I have not seen it happen again. At the time I thought it might be related to using the new dark library tool in the Ekos CCD tab. I believe the darks are written to /tmp before they are processed and added to the dark library. Somehow this over wrote the directory setting in the main CCD tab. Now, I have not been able to repeat this so it was more of a guess as to what happened.

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Tunafish replied to the topic 'New Targets tool?' in the forum. 10 months ago

Maybe this is already a feature of KStars/EKOS but an easy to use framing tool as part of planning targets would be nice. I currently use telescopius.com/ to do my framing. I'll filter and pick a target then get the FOV framing based on my equipment details. I can then drag the FOV frame around to get the best framing. Then I usually add the RA/Dec of the center point as a custom object to KStars to use for my session. Be nice if this could be done quickly inside KStars/EKOS.

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Tunafish replied to the topic 'PA routine with RPI4' in the forum. 11 months ago

I suspect that everything on the RPI4 is slower than on the MBAir. I use a QHYCCD QHY5-III-178C for my guide camera and use it do PA on my RPI4 4GB with Astroberry. You have Update PA Error checked which can be very compute intensive so the recommendation I have seen is to use 2x2 binning to reduce the image size. Looks like your camera may be 9M pixels while mine is 6M pixels. I use 2x2 binning with the Update PA Error checked at a 0.5 second refresh and it is usable. Not amazing but usable.

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Tunafish replied to the topic 'Kstars crashing' in the forum. 12 months ago

I found that KStars continued to crash for me if the summary screen preview was enabled. i believe it still needs to do same image processing as the FITS viewer to display in the manager window so continues to eat memory over the night.

Looking forward to hearing how enabling the 64bit kernel works since KStars will continue be a 32bit application unless rebuilt as a 64bit one.

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Tunafish replied to the topic 'Kstars crashing' in the forum. 12 months ago

I know you said you had the latest version of Kstars/EKOS/INDI but there was an issue with KStars 3.5.2 where the Fitsviewer would run out of memory and crash KStars after a while. I have the latest Astroberry which is still at 3.5.2 and I know that if I leave FITS viewing on while doing acquisition then KStars will randomly crash at some point in the night. I have seen this directly on occasion where a debayering  error pops up and then KStars crashes. INDI keeps running in the background.

This was supposedly fixed in 3.5.3 ( Fitsviewer crashes when imaging with Altair Hypercam 183c - Kstars 3.5.2 ) so if you do have 3.53. then this should not be the issue. If you're on 3.5.2 then turn off the FITS viewer during acquisition and give it a try.

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