Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 21-07-2018, 23:39   #1
Registered User

Join Date: Feb 2017
Location: Southern California
Posts: 93
Open GL problem with raster charts

Hi all - I just set up a brand new Windows 10 Dell computer with OpenCPN 4.8.4 with CA RNC charts and I'm having a problem when I have Open GL enabled. When I zoom in and out on the charts, I get these square blocks and some flickering. When I disable OpenGL, everything is fine again, aside from a more grainy charts that don't look as nice.

This is the computer: https://www.amazon.com/Dell-CFC5C-Op.../dp/B06X17CLQX

I'm wondering if this is the cause: On the back of the PC, there is a DisplayPort output which I have a converter to VGA plugged in and that goes to the monitor. I tried a different converter same problem. I also tried the HDMI output port using a converter to VGA and got the same results. Is it because I am converting the video signal to VGA? The reason why I did this is because the boat is very limited dash space and I can't fit a new monitor which has a DisplayPort input. They are all much larger in size. I need to stay with small 15-17" screen.

Here is a video of me zooming in and out with Open GL enabled.



My next step as a test is to bring a nicer larger monitor down there with a DisplayPort input, getting rid of the adapter, and seeing what happens. If this doesn't work, then it's 100% software related and not the converter or monitor.


Any thoughts?
J805 is offline   Reply With Quote
Old 22-07-2018, 22:49   #2
Registered User

Join Date: Feb 2017
Location: Southern California
Posts: 93
Re: Open GL problem with raster charts

Disregard, I fixed the problem by reinstalling the latest video driver for the system.
J805 is offline   Reply With Quote
Old 23-07-2018, 03:17   #3
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 12,543
Re: Open GL problem with raster charts

Good job.
rgleason is online now   Reply With Quote
Reply

Tags
charts

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ocpn will not open raster charts Gaphumbala OpenCPN 6 29-01-2015 16:50
Raster Scan Chart Problem wingssail OpenCPN 2 18-04-2014 11:12
Raster Charts or Vector Charts - Which is Best for Electronic Navigation ? Alecadi Navigation 19 28-03-2012 19:56
NOAA Raster Charts, Used with Capn Voyager Sunspot Baby Navigation 10 27-08-2009 06:48
Printing Raster Charts blahman Navigation 7 14-12-2007 15:50



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 18:19.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.