Minecraft Forums

when i go on a world if i jump i cannot stop jumping and if i open my inventory i stop jumping i cannot jump again. this happens on servers as well. i have a mac. does anyone know how to fix this problem.

[09:37:14 INFO]: Refreshing local version list...
[09:37:14 INFO]: Minecraft Launcher 1.3.8 (through bootstrap 5) started on osx...
[09:37:14 INFO]: Current time is Jan 12, 2014 9:37:14 AM
[09:37:14 INFO]: System.getProperty('os.name') == 'Mac OS X'
[09:37:14 INFO]: System.getProperty('os.version') == '10.8.5'
[09:37:14 INFO]: System.getProperty('os.arch') == 'x86_64'
[09:37:14 INFO]: System.getProperty('java.version') == '1.6.0_65'
[09:37:14 INFO]: System.getProperty('java.vendor') == 'Apple Inc.'
[09:37:14 INFO]: System.getProperty('sun.arch.data.model') == '64'
[09:37:15 INFO]: Refreshing remote version list...
[09:37:16 INFO]: Refresh complete.
[09:37:16 INFO]: Loaded 1 profile(s); selected 'tasaid'
[09:37:16 INFO]: Refreshing auth...
[09:37:16 INFO]: Logging in with access token
[09:37:28 INFO]: Getting syncinfo for selected version
[09:37:28 INFO]: Queueing library & version downloads
[09:37:30 INFO]: Download job 'Version & Libraries' started (16 threads, 26 files)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1-nightly-20131120/lwjgl-2.9.1-nightly-20131120.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[09:37:30 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Download job 'Resources' skipped as there are no files to download
[09:37:32 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1-nightly-20131120/lwjgl_util-2.9.1-nightly-20131120.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.1-nightly-20131120/lwjgl-platform-2.9.1-nightly-20131120-natives-osx.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1-nightly-20131120/lwjgl_util-2.9.1-nightly-20131120.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/tv/twitch/twitch/5.12/twitch-5.12.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/tv/twitch/twitch-platform/5.12/twitch-platform-5.12-natives-osx.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/tv/twitch/twitch/5.12/twitch-5.12.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.2/authlib-1.2.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.2/authlib-1.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Attempting to download /Users/napollock/Library/Application Support/minecraft/versions/1.7.4/1.7.4.jar for job 'Version & Libraries'... (try 0)
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/tv/twitch/twitch-platform/5.12/twitch-platform-5.12-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.1-nightly-20131120/lwjgl-platform-2.9.1-nightly-20131120-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1-nightly-20131120/lwjgl-2.9.1-nightly-20131120.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:32 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[09:37:34 INFO]: Finished downloading /Users/napollock/Library/Application Support/minecraft/versions/1.7.4/1.7.4.jar for job 'Version & Libraries': Used own copy as it matched etag
[09:37:34 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:03.554)
[09:37:34 INFO]: Launching game
[09:37:34 INFO]: Looking for old natives & assets to clean up...
[09:37:34 INFO]: Unpacking natives to /Users/napollock/Library/Application Support/minecraft/versions/1.7.4/1.7.4-natives-1389479854134639000
[09:37:34 INFO]: Launching in /Users/napollock/Library/Application Support/minecraft
[09:37:34 INFO]: Half command: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Xdock:icon=/Users/napollock/Library/Application Support/minecraft/assets/objects/99/991b421dfd401f115241601b2b373140a8d78572 -Xdock:name=Minecraft -Xmx1G -Djava.library.path=/Users/napollock/Library/Application Support/minecraft/versions/1.7.4/1.7.4-natives-1389479854134639000 -cp /Users/napollock/Library/Application Support/minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar:/Users/napollock/Library/Application Support/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar:/Users/napollock/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar:/Users/napollock/Library/Application Support/minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar:/Users/napollock/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar:/Users/napollock/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar:/Users/napollock/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar:/Users/napollock/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar:/Users/napollock/Library/Application Support/minecraft/libraries/com/mojang/authlib/1.2/authlib-1.2.jar:/Users/napollock/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar:/Users/napollock/Library/Application Support/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar:/Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1-nightly-20131120/lwjgl-2.9.1-nightly-20131120.jar:/Users/napollock/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1-nightly-20131120/lwjgl_util-2.9.1-nightly-20131120.jar:/Users/napollock/Library/Application Support/minecraft/libraries/tv/twitch/twitch/5.12/twitch-5.12.jar:/Users/napollock/Library/Application Support/minecraft/versions/1.7.4/1.7.4.jar net.minecraft.client.main.Main
[09:37:35 INFO]: Client> [09:37:35] [main/INFO]: Setting user: emboar88
[09:37:35 INFO]: Client> [09:37:35] [main/INFO]: (Session ID is token:5484171aa7314998a275636cd962a455:56f0e68472b242818100f4042cf3bbd9)
[09:37:36 INFO]: Client> [09:37:36] [Client thread/INFO]: LWJGL Version: 2.9.1
[09:37:36 INFO]: Client> [09:37:36] [Client thread/INFO]: Reloading ResourceManager: Default
[09:37:36 INFO]: Client>
[09:37:36 INFO]: Client> Starting up SoundSystem...
[09:37:36 INFO]: Client> Initializing LWJGL OpenAL
[09:37:36 INFO]: Client> (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[09:37:36 INFO]: Client> OpenAL initialized.
[09:37:37 INFO]: Client>
[09:37:37 INFO]: Client> [09:37:37] [Sound Library Loader/INFO]: Sound engine started
[09:37:37 INFO]: Client> [09:37:37] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas
[09:37:37 INFO]: Client> [09:37:37] [Client thread/INFO]: Created: 256x256 textures/items-atlas
[09:37:37 INFO]: Client> [09:37:37] [Client thread/ERROR]: ########## GL ERROR ##########
[09:37:37 INFO]: Client> [09:37:37] [Client thread/ERROR]: @ Post startup
[09:37:37 INFO]: Client> [09:37:37] [Client thread/ERROR]: 1281: Invalid value
[09:37:37 INFO]: Client> [09:37:37] [Client thread/ERROR]: ########## GL ERROR ##########
[09:37:37 INFO]: Client> [09:37:37] [Client thread/ERROR]: @ Pre render
[09:37:37 INFO]: Client> [09:37:37] [Client thread/ERROR]: 1281: Invalid value
[09:38:04 INFO]: Client> [09:38:04] [Server thread/INFO]: Starting integrated minecraft server version 1.7.4
[09:38:04 INFO]: Client> [09:38:04] [Server thread/INFO]: Generating keypair
[09:38:05 INFO]: Client> [09:38:05] [Server thread/INFO]: Converting map!
[09:38:05 INFO]: Client> [09:38:05] [Server thread/INFO]: Scanning folders...
[09:38:05 INFO]: Client> [09:38:05] [Server thread/INFO]: Total conversion count is 0
[09:38:05 INFO]: Client> [09:38:05] [Server thread/INFO]: Preparing start region for level 0
[09:38:06 INFO]: Client> [09:38:06] [Server thread/INFO]: Preparing spawn area: 6%
[09:38:07 INFO]: Client> [09:38:07] [Server thread/INFO]: Preparing spawn area: 12%
[09:38:08 INFO]: Client> [09:38:08] [Server thread/INFO]: Preparing spawn area: 22%
[09:38:09 INFO]: Client> [09:38:09] [Server thread/INFO]: Preparing spawn area: 34%
[09:38:10 INFO]: Client> [09:38:10] [Server thread/INFO]: Preparing spawn area: 49%
[09:38:11 INFO]: Client> [09:38:11] [Server thread/INFO]: Preparing spawn area: 62%
[09:38:12 INFO]: Client> [09:38:12] [Server thread/INFO]: Preparing spawn area: 75%
[09:38:13 INFO]: Client> [09:38:13] [Server thread/INFO]: Preparing spawn area: 91%
[09:38:14 INFO]: Client> [09:38:14] [Server thread/INFO]: Changing view distance to 8, from 10
[09:38:14 INFO]: Client> [09:38:14] [Server thread/INFO]: emboar88[local:E:e2940b84] logged in with entity id 190 at (16.5, 76.0, 258.5)
[09:38:14 INFO]: Client> [09:38:14] [Server thread/INFO]: emboar88 joined the game
[09:38:15 INFO]: Client> [09:38:15] [Server thread/INFO]: Saving and pausing game...
[09:38:15 INFO]: Client> [09:38:15] [Server thread/INFO]: Saving chunks for level 'New World'/Overworld
[09:38:21 INFO]: Client> [09:38:21] [Server thread/INFO]: Saving chunks for level 'New World'/Nether
[09:38:21 INFO]: Client> [09:38:21] [Server thread/INFO]: Saving chunks for level 'New World'/The End
[09:38:21 INFO]: Client> [09:38:21] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6779ms behind, skipping 135 tick(s)
[09:38:23 INFO]: Client> [09:38:23] [Client thread/INFO]: Warning: Clientside chunk ticking took 137 ms
[09:38:23 INFO]: Client> [09:38:23] [Client thread/INFO]: Warning: Clientside chunk ticking took 161 ms
[09:38:25 INFO]: Client> [09:38:25] [Client thread/INFO]: Warning: Clientside chunk ticking took 104 ms
[09:38:25 INFO]: Client> [09:38:25] [Client thread/INFO]: Warning: Clientside chunk ticking took 105 ms
[09:38:25 INFO]: Client> [09:38:25] [Server thread/INFO]: emboar88 has just earned the achievement [Taking Inventory]
[09:38:25 INFO]: Client> [09:38:25] [Client thread/INFO]: [CHAT] emboar88 has just earned the achievement [Taking Inventory]
[09:38:25 INFO]: Client> [09:38:25] [Client thread/INFO]: Warning: Clientside chunk ticking took 107 ms
[09:38:27 INFO]: Client> [09:38:27] [Client thread/INFO]: Warning: Clientside chunk ticking took 148 ms
[09:38:27 INFO]: Client> [09:38:27] [Client thread/INFO]: Warning: Clientside chunk ticking took 186 ms
[09:38:27 INFO]: Client> [09:38:27] [Client thread/INFO]: Warning: Clientside chunk ticking took 136 ms
[09:38:27 INFO]: Client> [09:38:27] [Client thread/INFO]: Warning: Clientside chunk ticking took 105 ms
here is the log

the problem still occurs

Quote from tasaid

...

Hi,

Your computer appears to have performance issues running Minecraft.

From that, there may be issues with your hardware, or you simply have applications running that are deterring Minecraft.

Reboot your computer, and try running the launcher.

If it does not work, take your computer to Apple and have them run a hardware test on it.

thx it worked