Updated GTN750 Won't Capture GPS Course (resolved)

[ark 1,288]

I am using P3Dv4.5HF2 and just updated to the latest version of the GTN750. I have now tried 3 different a/c, all of which have the GTN installed in the panel, and none of them are capturing the GPS course. The HSI CDI responds as expected, the HSI course arrow points to the desired course, the GTN is in GPS mode, the AP is on in NAV mode, but the a/c does not turn to the GPS course as the CDI centers. The previous GTN 750 version worked fine. What am I forgetting after updating the GTN? My settings are below.

Thx,

Al

Edited November 12, 2019 by ark

[RXP 2,338]

Hi,

can you please post the content of the RXP log files? (see User's Manual for file/path)

[ark 1,288]

26 minutes ago, RXP said:

Hi,

can you please post the content of the RXP log files? (see User's Manual for file/path)

Here's what I found:

rxpGtnSim.dll.log

19/11/12 19:00:10.236 05456 -    ] # rxpGtnSim64.dll version 2.5.21.0
19/11/12 19:00:10.235 05456 INFO ]
19/11/12 19:00:13.621 12312 INFO ] GTN 750.1 - TRAINER 6620
19/11/12 19:00:13.638 12312 WARN ] GTN 750.1 process is running as-admin
19/11/12 19:02:05.466 12312 WARN ] FPU FLT_MULTIPLE_TRAPS: c00002b5 at: 0x00020399 base 0x5f3d0000 in "C:\Program Files (x86)\Garmin\Trainers\Packages\GTN\Bin\IOP_SIM.DLL"

rxpGTN_menu.dll.log

19/11/02 02:37:50.226 07768 -    ] # rxpGTN_menu.dll version 2.5.20.3
19/11/02 02:37:50.230 07768 INFO ] edit panel: C:\P3Dv4\SimObjects\Airplanes\FLYSIM Cessna 402C\panel.RDR_GTN\panel.cfg
19/11/02 02:39:26.973 06880 INFO ]
19/11/02 02:39:26.976 06880 INFO ] edit panel: C:\P3Dv4\SimObjects\Airplanes\FLYSIM Cessna 402C\panel.RDR_GTN\panel.cfg
19/11/02 02:42:23.554 08980 INFO ]
19/11/02 02:42:23.556 08980 INFO ] edit panel: C:\P3Dv4\SimObjects\Airplanes\FLYSIM Cessna 402C\panel.RDR_GTN\panel.cfg

rxpGTN.gau.log

19/11/12 19:00:07.224 05456 -    ] # rxpGTN.dll version 2.5.21.0
19/11/12 19:00:07.224 05456 INFO ]

Thanks for the help,

Al

 

 

 

 

[RXP 2,338]

Hi, this explains better (at least to us!)

It seems there is a problem with the code running on your system, 'somehow'.

Why do you run P3D4 as admin? This isn't needed at all and in fact may be the root cause of many other problems (you can search the RXP forums for my explanations in different discussions). One of the most dangerous thing you can face is a bug in an add-on trying to delete all its configuration files, something like "delete "C:\ProgramData\AddonName\Config\*.*" but because of a bug it ends up doing this instead: "delete C:\*.*". I let you imagine what a program running with full admin privilege can do in this case...

Nevertheless, we'll have a closer look to this and report back in this discussion for further tests in order to solve this.

Can you please post in the meantime your RealityXP.GTN.ini file for us to cross-check what settings are live?

Also can you please try running the simulator not as-admin and see how it goes?

Edited November 12, 2019 by RXP

[ark 1,288]

1 hour ago, RXP said:

Also can you please try running the simulator not as-admin and see how it goes?

Ran the sim not as admin, but got the same results.

Here is the RealityXP.GTN.ini file (just for [GTN_750_1] since there is only one GTN installed) for one of the a/c I tried:

[GTN_750_1]
; is the master device if true.
MasterDevice = true
; reduce screen update rate by half.
ReduceRate = true
; connects GPS to HSI course motor if true.
LinkCrs = true
; connects GPS to OBS input if true (LinkHsi/OBS or AutoNavSource/OBS, with HSI/OBS = NAV1 OBS).
LinkObs = true
; uses Simulator GPS commands if true.
UseSimGpsCmds = true
; updates Simulator GPS flight plan if true.
LinkSimGps = true
; saves the active route to flight plan file if true (.PLN)
AutoSavePln = true
; uses legacy mouse (left CCW, right CW, middle Push) (override instances settings)
UseAltMouse = true
; sets fuel type: AUTO,AVGAS,JETA,JETB,DIESEL
FuelType = JETA
; sets ownship icon type: AUTO,LOW_WING,HIGH_WING,KIT_PLANE,TURBOPROP,TWIN_ENGINE,SINGLE_JET,BUSINESS_JET,2BLADES,3BLADES,4BLADES,ARROW
OwnshipIcon = BUSINESS_JET
; sets voice type: MALE,FEMALE
VoicePref = MALE
; aviation db: 0: nav_db2_grm, 1: nav_db2, 2: nav_heli_db2_grmn, 3: nav_heli_db2
NavDbType = 1
; integral lighting percent (0 to 100) or index (-1) (using rxp.panel.rheostat_screen)
Rheostat.Display = 73
; connects to: 'PFC_GTN' or any '#PID' (#D067 for PFC_GTN)
; no value connects to first found, 'OFF' disables connection.
HardwareDevice =
; hardware selector number or -1 to disable.
HardwareIdx = -1
; connects GPS to Autopilot if true.
LinkOto = true
; connects GPS to HSI if true.
LinkHsi = true
; connects GPS to VOR if true.
LinkVor = false
; override VLOC NAV# (1 or 2) or use 'RadiosPair' (0).
AutoNavSource = 0
; connects CDI mode to NAV/GPS switch if true.
AutoNavGps = true
; selects COM/NAV Radios '1' or '2'.
RadiosPair = 1
; uses computer time if true, simulator time otherwise.
ComputerTime = false
; HSI lateral deviation scale factor.
CdiScale = 1
; HSI vertical deviation scale factor.
GsiScale = 1
; connects GPS to Audio Panel if true.
UseAudioPanel = true
; connects GPS to Transponder if true.
UseTransponder = true
; enables Shadin Air Data computer if true.
UseAirData = true
; enables Shadin Fuel Data computer if true.
UseFuelData = true
; enables RYAN 9900BX TCAD if true.
UseRyanTcad = false
; sets TCAD sound alerts volume in percent: 0 to 100.
RyanTcadVolume = 50
; enables device failures if true.
UseFailures = false
; selects transponder VFR code: USE_CODE,VFR_US,VFR_EUR
VFRmode = VFR_US
; sets transponder VFR code (octal default: #1200).
VFRcode = #1200
; sets device power source:
; ALWAYS_ON, AVIONICS_ON,PANEL_ON,BUS_MAIN,BUS_AVIONICS,BUS_BATT,BUS_HOTBATT, BUS_1,BUS_2,BUS_3,BUS_4
PowerSource = AVIONICS_ON
; sets TAWS type: TERR,TAWS_B,TAWS_A
TawsMode = TERR
; sets TAWS surface: HARD,HARD_SOFT,WATER,ANY
TawsSurface = HARD_SOFT
; TAWS minimum runway length (feet)
TawsMinLength = 40
; TAWS approach air speed (knots) or -1 (auto detect Vref: 130)
TawsApprSpeed = -1
; TAWS flap extension speed (knots) or -1 (auto detect Vfe: 190)
TawsFlapSpeed = -1
; TAWS gear extension speed (knots) or -1 (auto detect Vle: 184)
TawsGearSpeed = -1
; integral lighting percent (0 to 100) or index (-1) (using rxp.panel.rheostat_integral)
Rheostat.Buttons = 75
; sets master sound volume in percent: 0 to 100.
MasterVolume = 100
; mute sound when simulator window looses focus if false.
NoAudioFocus = false
; sets trainer process CPU: 1 to 32, 0: last core, -1: auto, -2: all (GTN_6620+).
CpuAffinity = -1
; main: CDI Key (0: disable)
AFMS.cdi_key =  
; main: Selected Course for GPS (0: disable)
AFMS.sel_crs_gps =  
; main: Selected Course for VLOC (0: disable)
AFMS.sel_crs_vloc =  
; main: V-Flag State (1: declutter)
AFMS.v_flag_declutter =  
; main: GPS Selected (0: prompt)
AFMS.gps_selected =  
; main: Engage Autopilot APPR (1: enabled)
AFMS.auto_nav_appr =  
; main: Airspace Labels (0: disable)
AFMS.airspace_labels =  
; nav : Mark On Target (1: enable)
AFMS.mark_on_target =  
; nav : RF Procedure Legs (1: enable)
AFMS.rf_procedure_legs =  
; vnav: Vertical Navigation Type (0: VCALC, 1: VNAV)
AFMS.vnav_enabled =  
; vnav: Transition To Approach (0: disable)
AFMS.vnav_trans_to_appr =  
; vnav: VDI Scale (default: 500ft)
AFMS.vnav_vdi_scale_factor =  
; vnav: Transition Altitude (default: FL180)
AFMS.vnav_trans_altitude =  

[GTN_750_1.DEFAULT]
; show screen only gauge if true.
nobezel = false
; screen only border size (pixels).
border.size = 0
; screen only border color (#RGB or #RGBA).
border.rgba = #000000
; display mouse tooltips if true.
tooltips = false
; enable mouse clickspots if true, disable if false.
usemouse = true
; enable alternate click-spots (left CCW, right CW, middle Push) if true.
usealtmouse = false
; enable touch beyond screen bounds if true (2D only), clip if false (GTN native).
extendtouch = true
; auto-resize dimension (width,height)
refsize =
; left mouse button on the screen toggles popup window by ident (ex: GPS_PANEL or 225) (requires SHIFT+left mouse button).
popleft =
; right mouse button on the screen toggles popup window by ident (ex: GPS_PANEL or 225).
popright =
; adjust brightness (0 to 100)
brightness.bezel = 100
; offset brightness (-100 to +100)
brightness.screen = 50

 

 

 

Edited November 12, 2019 by ark

[RXP 2,338]

Thank you.

Can you please disable both Shadin computers and compare?

Then enable Shadin Air Data only, then Shadin Fuel only, then both, and see if any of these is the culprit.

Besides, where are you located when loading the aircraft (what airport the aircraft is)? Is this still crashing if you start from another airport?

[ark 1,288]

2 hours ago, RXP said:

Besides, where are you located when loading the aircraft (what airport the aircraft is)? Is this still crashing if you start from another airport?

I disabled both Shadin computers but it did not help.

I moved from KCOS (Colorado Springs, CO) to KPUB (Pubelo, CO) but it did not help.

I then uninstalled the new GTN version using Win10 Programs and Features, and reinstalled the previous version. That DID work, the GTN captured the GPS course. I then uninstalled the previous version, reinstalled the new version again, and that did NOT work -- didn't capture the GPS course.

One curious thing is after I uninstalled the new version and reinstalled the previous ver, the GTN750 startup screen still indicated ver 2.5.21. But when I checked using the configuration panel for updates, it did say I was using ver 2.5.20.3 and a new update was available, so I assume the GTN startup screen was in error (probably something did not get fully uninstalled when I uninstalled the new version).  Win10 Program and Features listed the previous version size as 49.9MB and the new version size as 51.8MB, so I do think I was working with two different versions despite what the GTN startup screen showed.

Al

 

 

Edited November 13, 2019 by ark

[DannyR 35]

I am having the same issue.  Since I upgraded to the latest 750 version the 750 will not capture GPS course.  I run P3D4.5 with HF.  The 750 worked fine before the upgrade.  I have checked the configuration files and found nothing odd.  Head hold works, altitude hold works, speed hold works, just will not capture GPS course to support Autopilot function.

Danny

[RXP 2,338]

2 hours ago, ark said:

One curious thing is after I uninstalled the new version and reinstalled the previous ver, the GTN750 startup screen still indicated ver 2.5.21. But when I checked using the configuration panel for updates, it did say I was using ver 2.5.20.3

Ok this might explain some of the problems you're having.

The version number displayed in the device is the version of the GTN simulation component (rxpGtnSim.dll) whereas the version checked with he "Check Updates..." is the version of the gauge file.

We're usually updating both at the same time with the same first 3 numbers (like 2.5.21.x)

So when you've uninstalled the product it didn't uninstall the core simulation component but the it did uninstall the gauge file. Installing the older version didn't replace the core component with an older one because the one on your drive is newer.

The truth is always held in the log files in which the first line tells what version is the which:

6 hours ago, ark said:

19/11/12 19:00:10.236 05456 -    ] # rxpGtnSim64.dll version 2.5.21.0

this is the core component in C:\ProgramData\Reality XP\

19/11/02 02:37:50.226 07768 -    ] # rxpGTN_menu.dll version 2.5.20.3

this is the product menu handler and panel assistant (an add-on dll).
It is referenced by the add-on.xml in "My Documents\P3D4 Add-Ons"

Note: this shows installing the latest update didn't installed the updated menu dll on your system though.

19/11/12 19:00:07.224 05456 -    ] # rxpGTN.dll version 2.5.21.0

this is the gauge file dll also referenced by the add-on.xml file.

 

So after installing the previous version these should show rxpGtnSim64.dll version 2.5.20.3, rxpGTN_menu version 2.5.20.3 and rxpGTN.dll version 2.5.20.3 (or .2 for some of these). Can you confirm this is what the log files show now?

 

@DannyR Hi, please post the content of the RXP log files.

[DavidP 1,408]

Same problem here

[ark 1,288]

1 hour ago, RXP said:

So after installing the previous version these should show rxpGtnSim64.dll version 2.5.20.3, rxpGTN_menu version 2.5.20.3 and rxpGTN.dll version 2.5.20.3 (or .2 for some of these). Can you confirm this is what the log files show now?

After again uninstalling the new version and re-installing the previous version just now the log files show:

rxpGtnSim64.dll version 2.5.21.0          (version doesn't match the two below; apparently is not being removed by the uninstall process and so not replaced by the older version. Is Win10 Program and Features the best way to uninstall a GTN version?)

rxpGTN.dll version 2.5.20.3

rxpGTN_menu.dll  version 2.5.20.3    (this apparently isn't getting updated at all, the explorer file listing shows the date 1Nov2019 ! )

The first two above although showing different versions, are being updated -- the update date and time are correct. But the menu dll apparently isn't being updated at all based on the date shown in the file explorer listing. And I have confirmed again this previous version does capture the GPS course even though the rxpGtnSim64.dll version is 2.5.21.0 and not 2.5.20.3.

Al

Edited November 13, 2019 by ark

[RXP 2,338]

@ark I'm sorry I should have asked you to let me know the actual files versions on the disk.

Can you please let me know what they are for:

C:\ProgramData\Reality XP\rxpGtnSim32.dll
C:\ProgramData\Reality XP\rxpGtnSim64.dll
C:\Program Files (x86)\Reality XP\GTN Simulation\FltSim\32\rxpGTN.dll
C:\Program Files (x86)\Reality XP\GTN Simulation\FltSim\64\rxpGTN.dll
C:\Program Files (x86)\Reality XP\GTN Simulation\FltSim\32\rxpGTN_menu.dll
C:\Program Files (x86)\Reality XP\GTN Simulation\FltSim\64\rxpGTN_menu.dll

Right click each file > Properties > Details

PS: the menu log file shows 2.5.20.3 because the last time you've run it was on November 19th at 02:37 UTC.

15 hours ago, ark said:

19/11/02 02:37:50.226 07768 -    ] # rxpGTN_menu.dll version 2.5.20.3

 

[RXP 2,338]

@DannyR @DavidP can you please also let me know about these?

[RXP 2,338]

Update: ok we've been able to repro now and I'll update this discussion as we progress.

I'm sorry for this and thank you for your patience.

[Ralvarez232 15]

Hi, same problem here. Windows 10 FSX SE