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Timer stops working after resolution change #846

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tomaka opened this issue Feb 28, 2021 · 0 comments
Open

Timer stops working after resolution change #846

tomaka opened this issue Feb 28, 2021 · 0 comments
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A-standalone-x86_64 Issues specific to x86_64 T-bug Something isn't working

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@tomaka
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tomaka commented Feb 28, 2021

This problem has been happening for weeks now, and it's kind of blocking progress.

What happens is:

  • The compositor has a timer that triggers 60 times per second.
  • The VGA/VBE driver initializes all the VBE stuff, then switches resolution. During this switch, there is no timer ticking (I think it should, since we're running multiple CPUs, but I'm not sure with QEmu having this "fake multithreading" thing)
  • After that, the next timer tick takes a very long time to trigger (like, a minute or so).
  • Then the entire thing seems frozen.
@tomaka tomaka added T-bug Something isn't working A-standalone-x86_64 Issues specific to x86_64 labels Feb 28, 2021
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