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  1. Minecraft: Java Edition
  2. MC-26295

New lwjgl version appears to cause major FPS drop

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: Minecraft 1.6.2
    • Fix Version/s: Minecraft 1.7.4
    • Environment:

      Arch Linux, 2008 Macbook Pro with NVIDIA GeForce 8600M GT GPU, 4 GB RAM, Java 1.7.0_40 64 bit

    • Confirmation Status:
      Unconfirmed
    • Game Mode:
      Survival

      Description

      Noticed a major drop in FPS (from ~40 FPS down to 10-20 FPS) after upgrading from Minecraft 1.5 to 1.6, and believe I may have isolated the problem to the newer version of lwjgl bundled with 1.6. I get the exact same drop in FPS if I run Minecraft 1.5 and replace the bundled version of lwjgl (2.4.2) with 2.9.0, so I don't think this is due to any changes in MC 1.6, just to the newer lwjgl it ships with.

      Some facts:

      -I only have 1 GPU (the NVIDIA GeForce 8600M GT GPU), so this is definitely not a duplicate of the many bug reports involving MC 1.6 using the wrong GPU.

      -Can replicate this in OS X as well as Linux, so I don't think it's anything in my OS environment.

      -Changing the lighting settings (doesn't matter to what) gives a temporary speed increase back up to 40 FPS, but it always goes back down to 10-20 FPS after a few minutes.

      Please let me know if there's any other information I can provide.

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              • Assignee:
                Unassigned
                Reporter:
                dfrac David Roazen
              • Votes:
                1 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: