Mireia replied to the topic 'Starting compiled Ekos generates a segfault in Buster' in the forum. 1 month ago

I'm right now traveling and have no way to test it because I don't have the RPI 4 with me. I will check it in a few weeks.

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Mireia replied to the topic 'Starting compiled Ekos generates a segfault in Buster' in the forum. 1 month ago

Thank you, I will have a look.

In the meanwhile, gdb prints these last lines

org.kde.kstars.ekos.align: "Idle."
[Detaching after fork from child process 11826]
org.kde.kstars.ekos.align: "Detected Astrometry.net version 0.78"
org.kde.kstars.ekos: "CCD Simulator is online."

Thread 19 "kstars" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xa08390d0 (LWP 11822)]
0xb6fc41dc in strlen () from /usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so
(gdb) 

Maybe it is something specific of the RPI Pi4?

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Mireia replied to the topic 'Starting compiled Ekos generates a segfault in Buster' in the forum. 1 month ago

I recompiled making sure that there were no missing packages (not even the optional) during compilation, but the segmentation still pops up as soon as the Ekos window is created.

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Mireia replied to the topic 'Starting compiled Ekos generates a segfault in Buster' in the forum. 1 month ago

I have the following packages installed.

ii  qml-module-qtquick-controls:armhf    5.11.3-2                        armhf        Qt 5 Quick Controls QML module
ii  qml-module-qtquick-layouts:armhf     5.11.3-4                        armhf        Qt 5 Quick Layouts QML module
ii  qml-module-qtquick-window2:armhf     5.11.3-4                        armhf        Qt 5 window 2 QML module
ii  qml-module-qtquick2:armhf            5.11.3-4                        armhf        Qt 5 Qt Quick 2 QML module


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Mireia created a new topic ' Starting ekos generates a segfault' in the forum. 1 month ago

Hi,

I just finished compiling indi and kstars in Raspbian Buster. Kstars works fine until I start Ekos, which triggers a segfault. Has anyone experienced the same? This is the log I get in the terminal...

libEGL warning: DRI2: failed to authenticate
org.kde.kstars: Welcome to KStars 3.3.7
org.kde.kstars: Build: 2019-10-13T17:07:12Z
org.kde.kstars: OS: "debian"
org.kde.kstars: API: "arm-little_endian-ilp32-eabi-hardfloat"
org.kde.kstars: Arch: "arm"
org.kde.kstars: Kernel Type: "linux"
org.kde.kstars: Kernel Version: "4.19.73-v7l+"
org.kde.kstars: Qt Version: 5.11.3
org.kde.kstars: Processing  "unnamedstars.dat" , HTMesh Level 3
org.kde.kstars:   Sky Mesh Size:  512
org.kde.kstars: Loaded DSO catalog file:  "unnamedstars.dat"
org.kde.kstars: "Star HD20,794 not found."
org.kde.kstars: "Star HD98,230 not found."
File opened:  "/usr/share/kstars/ngcic.dat"
org.kde.kstars: Loading NGC/IC objects
File opened:  "/home/pi/.local/share/kstars/comets.dat"
org.kde.kstars: "Object named NGC 6050A not found"
static bool LibSecretKeyring::findPassword(const QString&, const QString&, QKeychain::JobPrivate*)
** Message: 18:49:34.679: Remote error from secret service: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.secrets was not provided by any .service files
glibc >= 2.1 detected.  Using GNU extension sincos()
File opened:  "/home/pi/.local/share/kstars/comets.dat"
File opened:  "/home/pi/.local/share/kstars/asteroids.dat"
org.kde.kstars.ekos: "Starting INDI services..."
org.kde.kstars.ekos: "INDI services started on port 7624."
org.kde.kstars.ekos: Ekos received a new device:  Focuser Simulator
org.kde.kstars.ekos: Ekos received a new device:  CCD Simulator
org.kde.kstars.ekos: Ekos received a new device:  Telescope Simulator
org.kde.kstars.ekos.focus: "Idle."
org.kde.kstars.ekos: "Focuser Simulator focuser is online."
org.kde.kstars.ekos.align: "Idle."
org.kde.kstars.ekos.align: "Detected Astrometry.net version 0.78"
org.kde.kstars.ekos: "CCD Simulator is online."
Segmentation fault


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Mireia replied to the topic 'Preemptive corrections on tracking speed based on astrometric solution' in the forum. 2 months ago

Or even, more refined and cool, if we know how the stars trail, estimate the polar alignment error and just adjust the tracking speed in both axes to compensate it, so only the field rotation remains. For short focal lengths I think it will remove the need for a super accurate polar alignment or guiding

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Mireia replied to the topic 'Crescend + Sadr region from Berlin' in the forum. 2 months ago

Totally. I still need the new guider to arrive, until then I'm basically stuck with underexposed 180s ISO2500 subs.

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Mireia replied to the topic 'ASI120MM Mini not working' in the forum. 3 months ago

But the mini should work too no? It is what they sell by default with asi air.

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Mireia replied to the topic 'Crescend + Sadr region from Berlin' in the forum. 3 months ago

Well, the mount has very mixed reviews in Cloudynights. But don't get me wrong, I think the mount even for astrophotography has an outstanding design and I wouldn't hesitate to buy it again (although I would have chosen the package with the mak127 to also do some visual ;). If you get a decent unit is like having a Star Adventurer on steroids for almost the same price and the same weight/volume. Of course, if it would have targetted the astrophotography community there would be things to improve a bit, like more consistency in the backlash and some little details like a better clamp. But its price would have skyrocketed for sure. And anyway, my unit is pretty good, the backlash is not very noticeable visually and the gotos leave me the objects pretty well centered.

I would really love to see how hackable it is in the long run, how tunable it is to reduce the backlash in those units that need it (or even how possible it would be to convert it to a belt driven system) and what other crazy ideas people come up with.

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Mireia replied to the topic 'Crescend + Sadr region from Berlin' in the forum. 3 months ago

I am happy with the mount, although

- I haven't tried to guide it yet because of the silly broken frames with the asi120mm
- SW is apparently not super consistent with them, and while one unit may have a nice periodic error /backlash values, the next might be much worse (mine seems to be quite decent).
- the wifi interface now seems to be working better after I upgraded the rpi power supply. But until now I had a crazy amount of issues.
- and well, it doesn't stop being a az-alt mount adapted to work in eq mode. The capacity is not huge, it lacks a polar scope, maybe it has some play here and there.

If you are thinking on it for your nice pico obsy, I am not sure it is the best candidate, although I bought it with the idea of maybe one day doing something in that direction and super compact as well. Just need better skies than Berlin ones, maybe in Spain :) .

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