Re:Unexpected shut down of KStars and Ekos, but not Indi server
I subsequently located the ‘full screen’ button in the main Alignment window, and found that this does change the size of the Alignment Vector window, but not the size of the image within it, although tapping a couple of times on the ‘zoom in’ button makes the Alignment Vector window content a good size for the adjustment operation.
I’m not sure if there’s a further bug in the way the Ekos ‘minimise window’ button also minimises the main KStars window?
Many thanks to the authors for this great software!
Sky-Watcher ED80 Pro with 0.85x FR/Corrector with Canon DSLR on AZ-EQ5 GT mount
Other Sky-Watcher scopes - SkyMax 150 Pro Maksutov Cassegrain and Explorer 150p Newtonian
Please Log in or Create an account to join the conversation.
I have not had an issue with polar alignment, that seems to work flawlessly with KStars 3.3.6 on MATE, but I also experience the unexplained crashes. They do not happen when I run the same version of KStars on a mini-PC, so they must be Pi4 specific.
Basically that excludes my use of the Pi4 for the moment, since I usually run the rig unattended throughout the night.
Jo
Please Log in or Create an account to join the conversation.
Otherwise I haven’t suffered any random crashes, although I haven’t run any all night sessions like you.
Sky-Watcher ED80 Pro with 0.85x FR/Corrector with Canon DSLR on AZ-EQ5 GT mount
Other Sky-Watcher scopes - SkyMax 150 Pro Maksutov Cassegrain and Explorer 150p Newtonian
Please Log in or Create an account to join the conversation.
Edit: Pi4, 4gb in Raspbian Buster
Raspbian Buster with AstroPi3 script configuration
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG/ASI120mm @280mm Guide Scope
PHD2
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.
Please Log in or Create an account to join the conversation.
using NanoPC-T4 with Armbian Ubuntu Bionic
Kstars-Ekos-INDIE
NanoPC-T4 - Armbian Ubuntu 18.04
iOptron CEM25P mount
Photoline 80mm triplet
ZWO ASI294MC Pro Imaging camera
ZWO ASI290MM mini Guide camera
Please Log in or Create an account to join the conversation.
Ihoujin wrote: Clicking the zoom to fit button in the align module has often resulted in kstars crashing for me. It seems to happen mainly with large dslr frames, and if I click the button while the image is being solved.
Edit: Pi4, 4gb in Raspbian Buster
Same here, I usually crash when I click on the zoom buttons in the PA routine. INDI is still running but Kstars just shutdown and I have to launch it and then launch Ekos.
I am running StellarMate OS v1.4.4 for Raspberry Pi3B+ and DSLR
SW Black Diamond 80ED | SW150MAK | Newton SW 200/1000 | Orion 50mm Guider with Helical Focuser |Sirius EQ-G Rowan Belt Mode
Canon 1000D moded | ZWO ASI185MC | Baader Mark III Zoom
INDI | Stellarmate on RPI3B+ | Stellarium | Pixinsight
Please Log in or Create an account to join the conversation.
TV Paracorr-2, 2" Starlight FT, HSM20, Pegasus UPBv2,
ASI1600MM Pro, ASI174MM Mini, ZWO LRGB, EFW, & OAG, StellarMate on my RPi3
KStars Build 2019-09-30T08:25:45Z on Win10 (don't click while loading anything!)
Indi ver....
Please Log in or Create an account to join the conversation.
And the problem appears to happen more frequently when it's connected to the mount.
Please Log in or Create an account to join the conversation.
While guiding and imaging, suddenly Kstars disappears but PHD2 continues guiding and Indi seems to remain connected.
After i restart Kstars and connect, a pop up window tells me that there is already an instance of Indi running. I chose to stop it and then Kstars can start workng again.
Greetings.
Please Log in or Create an account to join the conversation.
May be it running out of memory. I added 4 GB swap and that seems to have helped.
Please Log in or Create an account to join the conversation.
NOTE: I wouldn't recommend a SWAP file on a raspberry pi due to issues with reading and writing of the SD card. You will wear it out. There is something much better called zram. Basically it takes the system ram, makes a compressed swap file for it, and puts the swap file in RAM instead of on the system disk. There is a slight performance hit since the system now has to do access compressed ram on a swap file in memory instead of just accessing memory. But the performance hit is worth the system not crashing. And it is also better than wearing out your SD card.
Please Log in or Create an account to join the conversation.
I can't "reliably" induce a crash of KStars, it seems to happen randomly to me, at least. The Zotac mini-PC I am using also has just 4 GB of RAM, but my Swap file there resides on the eMMC, not an SD card.
With respect to wearing out the SD card, I am less concerned about that. First, I had a swap file on my Pi3 and that was used extensively over the last year without any problem. The Swap file on the Pi4 so far appears to be used very sparingly (swappiness set at 20) and I put it only as a safeguard in case memory gets tight. Second, I don't know how to turn on zRAM in Ubuntu MATE on the Pi4. What is the procedure to do that? Third, microSD cards are really cheap now (I am using a 128 GB card from Samsung that costs $20 and it already last for over a year).
I actually ran my Pi4 without a hitch through the night 2 nights ago, but I did not use guiding. I have the suspicion that handing two cameras and other intensive tasks might be the problem. One of the crashes I had earlier occurred right during the meridian flip.
Please Log in or Create an account to join the conversation.