Board index FlightGear Support Graphics

Sudden Graphics Deterioration

Graphics issues like: bad framerates, weird colors, OpenGL errors etc. Bad graphics ar usually the result of bad graphics cards or drivers.
Forum rules
In order to help you, we need to know a lot of information. Make sure to include answers to at least the following questions in your initial post.

- what OS (Windows Xp/Vista, Mac etc.) are you running?
- what FlightGear version do you use?
- what graphics card do you have?
- does the problem occur with any aircraft, at any airport?
- is there any output printed to the console (black window)?
- copy&paste your commandline (tick the "Show commandline box on the last page of FGRun or the "Others" section on the Mac launcher).
- please upload a screenshot of the problem.

If you experience FlightGear crashes, please report a bug using the issue tracker (can be also used for feature requests).
To run FlightGear on old computers with bad OpenGL support, please take a look at this wiki article. If you are seeing corrupted/broken textures, please see this article.

Note: If you did not get a reponse, even after 7 days, you may want to check out the FlightGear mailing lists to ask your question there.

Sudden Graphics Deterioration

Postby lissalissa » Sat Jul 20, 2019 4:49 pm

Hello, everyone! I just bought a new computer and have been trying to get flightgear up and running on it. Everything seemed like it was working, and I managed to do a pretty long flight (KBOS->LGAV) with the 777 and pretty decent graphics settings and I was getting FPS of around 40-50. However, after that flight, every time I open flight gear, no matter where I am, what plane I'm using, or what settings I tweak (it seems), I'm now getting frame rates of 1-4 fps. I didn't change anything about my system since the good flight, and I have no idea what could possibly be going on.

I'm running Ubuntu 19.04. My GPU is an NVIDIA GTX1650. Any ideas?
lissalissa
 
Posts: 30
Joined: Sat Sep 12, 2015 2:42 pm
Location: Boston, MA, United States
Version: 2017.3.1
OS: Ubuntu 17.10

Re: Sudden Graphics Deterioration

Postby legoboyvdlp » Sat Jul 20, 2019 5:02 pm

Are you using Rembrandt (settings tab of the launcher - renderer)? If so, turn that off.
User avatar
legoboyvdlp
 
Posts: 7000
Joined: Sat Jul 26, 2014 1:28 am
Callsign: YV-LEGO
Version: 2018.3.1
OS: Windows 10 HP

Re: Sudden Graphics Deterioration

Postby lissalissa » Sat Jul 20, 2019 5:20 pm

I'm not using Rembrandt, no.
lissalissa
 
Posts: 30
Joined: Sat Sep 12, 2015 2:42 pm
Location: Boston, MA, United States
Version: 2017.3.1
OS: Ubuntu 17.10

Re: Sudden Graphics Deterioration

Postby V12 » Sat Jul 20, 2019 6:16 pm

Try install glmark2, run benchmark and paste here output. Are You using nouveau open source driver, or proprietaly nVidia ? Opensource driver is piece of the crap, OpenGL accel is poor.
Fly high, fly fast - fly Concorde !
User avatar
V12
 
Posts: 1483
Joined: Thu Jan 12, 2017 4:27 pm
Location: LZIB
Callsign: BAWV12

Re: Sudden Graphics Deterioration

Postby Icecode GL » Wed Jul 24, 2019 9:31 am

If what you are saying about your system config being unchanged is true, you can try deleting the .fgfs directory in your HOME folder.
Icecode GL
 
Posts: 528
Joined: Thu Aug 12, 2010 12:17 pm
Location: Spain
Callsign: icecode
Version: GIT
OS: Arch Linux

Re: Sudden Graphics Deterioration

Postby wkitty42 » Thu Jul 25, 2019 10:47 am

there's never really a reason to delete the entire .fgfs directory... one can delete the autosave* files in case they have retained some old options... deleting the entire directory means you lose all your settings, all your scenery, and all your craft... that's not always desirable... especially on limited bandwidth systems...
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
User avatar
wkitty42
 
Posts: 5630
Joined: Fri Feb 20, 2015 3:46 pm
Location: central NC, USA
Callsign: wk42
Version: git next
OS: Kubuntu 14.04.5

Re: Sudden Graphics Deterioration

Postby Icecode GL » Thu Jul 25, 2019 1:58 pm

deleting the entire directory means you lose all your settings, all your scenery, and all your craft...


I don't save my aircrafts/scenery in .fgfs, and even the OP does I guess they won't have to download much as they have recently installed FG in that computer from scratch. Also, quick tip: if someone tells you to delete something in your system, double check that there is nothing valuable there first.
Icecode GL
 
Posts: 528
Joined: Thu Aug 12, 2010 12:17 pm
Location: Spain
Callsign: icecode
Version: GIT
OS: Arch Linux

Re: Sudden Graphics Deterioration

Postby V12 » Thu Jul 25, 2019 2:16 pm

... or before delete do backup...
Fly high, fly fast - fly Concorde !
User avatar
V12
 
Posts: 1483
Joined: Thu Jan 12, 2017 4:27 pm
Location: LZIB
Callsign: BAWV12

Re: Sudden Graphics Deterioration

Postby legoboyvdlp » Thu Jul 25, 2019 2:44 pm

Are aircraft download in the launcher now stored in AppData....?

Or did FG_HOME move to documents?

For me settings and nav cache etc are all in AppData while aircraft and scenery are in Documents/FlightGear...?
User avatar
legoboyvdlp
 
Posts: 7000
Joined: Sat Jul 26, 2014 1:28 am
Callsign: YV-LEGO
Version: 2018.3.1
OS: Windows 10 HP

Re: Sudden Graphics Deterioration

Postby V12 » Thu Jul 25, 2019 3:41 pm

Lego :
It is linux, not Win.
Fly high, fly fast - fly Concorde !
User avatar
V12
 
Posts: 1483
Joined: Thu Jan 12, 2017 4:27 pm
Location: LZIB
Callsign: BAWV12


Return to Graphics

Who is online

Users browsing this forum: No registered users and 4 guests