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Old 01-06-2020, 14:27   #1
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OpenCPN 5.0 Zoom Crash to Desktop

I'm getting regular crashes to desktop (CTD) when zooming. Across 2 different PCs, I get a guaranteed CTD after zooming out to the world map.

Any zoom operation that flashes a gray background signals an impending CTD. CTD seems to be more frequent when I am using Geolocation TCP with my Surface GO2 LTE (has GPS). It can be at mid-levels of zoom too. It can get very Hair-Trigger, risking a crash with any zooming. There are also stretches where the program is handling zooming fine (as long as I don't zoom out too far.)

A CTD also disables Windows Search next to the Start button. You can put the cursor there, but it won't take keyboard entries. This happens on both the Surface GO2 and an HP laptop Spectre x360 laptop.

I've done Full Data Database Rebuild, Prepare all ENC Charts, and Scan Charts and update Database. It seems to help when I get hair-trigger CTDs with any zooming.

OpenCPN 5.0.0 +9065270
Tested with both CM93 January 2011 charts, and USCG ENC Vector Charts (downloaded via Chartdownloader 1.3 plugin)
Surface GO2 LTE
Windows 10 Pro 1909
8GB RAM
Charts on 128 GB SSD

The sailors I'm with that use this tool are used to iPads with Navionics, where they endlessly pinch-zoom and drag. Using OpenCPN like this inevitably leads to a crash to desktop.

I'm fairly computer-savvy and can supply whatever files you would like. I'm on land this week. On Sunday I will be sailing north from the southern Oregon border to Seattle, where internet connections will be spotty.
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Old 01-06-2020, 20:08   #2
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Re: OpenCPN 5.0 Zoom Crash to Desktop

Just learned something new. The exact same thing happens on my two different PCs, the Surface GO2 and the HP Spectre. After a Zoom Crash to Desktop, the computer behaves as if I was holding down the Ctrl key. Starting Word I get "You're holding down the CTRL key. Do you want to start Word in safe mode?" Other tests get the same results. Every keystroke is as if I were holding down the CTRL key. Hitting Ctrl toggles off the effect.
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Old 01-06-2020, 21:34   #3
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Re: OpenCPN 5.0 Zoom Crash to Desktop

Tolt...
Are you using OpenGL?
You may like to compare the effect of OpenGL, off and on, regarding your crashes.



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Old 02-06-2020, 08:45   #4
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Re: OpenCPN 5.0 Zoom Crash to Desktop

That's it. When I don't use OpenGL, crashes stop. Of course, however, I miss the smoother panning and zooming when using OpenGL. Is it a hardware limitation on my end?
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Old 03-06-2020, 15:43   #5
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Re: OpenCPN 5.0 Zoom Crash to Desktop

I just installed Beta 5.1.529 and with OpenGL selected, I am no longer Crashing! Couldn't be happier.
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