[Scummvm-tracker] [ScummVM :: Bugs] #13153: SCI Games begin lagging either at launch or after moving about outside of window

[ScummVM :: Bugs]

#13153: SCI Games begin lagging either at launch or after moving about outside of
window
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Reporter:  NikkiPhoenix80  |       Owner:  (none)
    Type:  defect          |      Status:  new
Priority:  normal          |   Component:  Engine: SCI
 Version:                  |  Resolution:
Keywords:                  |        Game:  Quest for Glory 1
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Comment (by sluicebox):

 Wow; some serious troubleshooting! Thanks for reporting this.

 eriktorbjorn's suggestion to try switching between the "Graphics mode"
 setting was my first thought too. 2.5.0 changed the Windows default mode
 from SDL Surface to OpenGL. If that's the problem, it may even happen in
 2.2.0 with the mode set to OpenGL. Either way, that should be easy to test
 and would reveal a lot about the nature of the problem.

 (And we've now established this is Windows since .NET framework was
 mentioned.)

 This sounds too interesting of a problem for the SCI engine; I just can't
 think of any SCI changes in 2.5.0 that could have such a wide ranging
 effect. But there were lots of graphics code changes. And the new default
 means that OpenGL mode is suddenly getting a lot more use than it did
 before, and that could mean discovering weird incompatibilities.

 Other details that could help reproduce/understand this:
 - What streaming software?
 - What Windows version?
 - You could attach your scummvm.ini file from when this occurs; that way
 we could see what all the settings are and try them ourselves. (It's a
 text file, feel free to remove irrelevant games or local paths you don't
 want included)
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/13153#comment:3>
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