Minecraft Forums

Hi guys!

Everytime when I start the launcher, I open a vanilla version or a version with Optifine, I enter to random server, and my Minecraft crashs.
The error log is the following:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000001c86a9b5, pid=6900, tid=2396
#
# JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C  [ig75icd64.dll+0x6a9b5]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\vittorio\AppData\Roaming\.minecraft\hs_err_pid6900.log
Compiled method (c1)   54621 6222       2       bmt::a (11 bytes)
 total in heap  [0x00000000030f8350,0x00000000030f8cd8] = 2440
 relocation     [0x00000000030f8470,0x00000000030f8500] = 144
 main code      [0x00000000030f8500,0x00000000030f8800] = 768
 stub code      [0x00000000030f8800,0x00000000030f88f8] = 248
 oops           [0x00000000030f88f8,0x00000000030f8908] = 16
 metadata       [0x00000000030f8908,0x00000000030f8948] = 64
 scopes data    [0x00000000030f8948,0x00000000030f8bc0] = 632
 scopes pcs     [0x00000000030f8bc0,0x00000000030f8cb0] = 240
 dependencies   [0x00000000030f8cb0,0x00000000030f8cb8] = 8
 nul chk table  [0x00000000030f8cb8,0x00000000030f8cd8] = 32
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
AL lib: (EE) alc_cleanup: 1 device not closed
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

I hope you can help me. Thank you!

Can you post a dxdiag?

http://hopper.minecraft.net/help/pixel-format-not-accelerated/support/#dxdiag