A short story about grafic card drivers and gpl from my side...It seems to match at this place. I hope someone find a solution for equal problem I have had.
I have run gpl from 2008-2014 with my Vista PC/Inter Core2 2.66GHz/NVIDEA Geforce GS9500GS without problems - it means with 60fps and complete pribluda all the time - only at such tracks like SPA67 at the pits maybe 55fps, all other tracks continuos 60fps.
In the later years I was wondering that many people says: "I can't use the 60fps patch. Unfortunately my PC is to old."
In 2015 I make a gpl pause.
In 2016 I came back to gpl. Unexpectedly I had with the same gpl grafic options like before (oglv2) only about 25fps if I was driving (if I stand at the pits I had 60fps). I tried rastd3d7v2 and had all the time only about 45fps. If I had deactivated same pribluda displays I had 5-10fps more, but at no time 60fps.
I was perplex: What the devil happened during my abstinence 2015?
After two weeks speculation I found the solution: In 2015 I had tested the rFactor2 and GPBikes demo. Both don't run with the old grafic card drivers - because that I have restored it (to version 340.52).
I changed to the old grafic drivers from 2008 (version 180.48) and since than gpl run stable with 60fps like before.
After that adventure I believe, if people say they have to old PCs for the 60fps patch in reality they have to new PCs in the most cases.
Edited by Olaf Lehmann, Oct 28 2016 - 09:45 AM.