Minecraft Forums

Before you tell me to "update my video drivers", they are already updated to the latest video drivers. I have the AMD Radeon 7970M chipset. The game USED to work, now it doesn't. This isn't my fault, I don't know what I did!

Here is my crash log:

---- Minecraft Crash Report ----
// I let you down. Sorry

Time: 12/10/13 10:47 PM
Description: Initializing game

org.lwjgl.LWJGLException: Pixel format not accelerated
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252)
at org.lwjgl.opengl.Display.createWindow(Display.java:306)
at org.lwjgl.opengl.Display.create(Display.java:848)
at org.lwjgl.opengl.Display.create(Display.java:757)
at org.lwjgl.opengl.Display.create(Display.java:739)
at azi.ad(SourceFile:325)
at azi.f(SourceFile:696)
at net.minecraft.client.main.Main.main(SourceFile:152)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252)
at org.lwjgl.opengl.Display.createWindow(Display.java:306)
at org.lwjgl.opengl.Display.create(Display.java:848)
at org.lwjgl.opengl.Display.create(Display.java:757)
at org.lwjgl.opengl.Display.create(Display.java:739)
at azi.ad(SourceFile:325)

-- Initialization --
Details:
Stacktrace:
at azi.f(SourceFile:696)
at net.minecraft.client.main.Main.main(SourceFile:152)

-- System Details --
Details:
Minecraft Version: 1.7.4
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_21, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 99287824 bytes (94 MB) / 126877696 bytes (121 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.7.4
LWJGL: 2.9.1
OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
GL Caps:
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: ~~ERROR~~ NullPointerException: null
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Anisotropic Filtering: Off (1)

Try reinstalling the drivers. Sometimes they can get corrupted.

Also, your Java version is 1.7.0_21. Please updtae to Java version 1.7.0_45 found at this link: https://java.com/en/download/index.jsp

Quote from cestislife

Please provide your DxDiag log,
http://www.minecraft...g-a-dxdiag-log/

Here's the log:
http://pastebin.com/cT4us6tB

I will also update Java.

Quote from cestislife

Grab the update for the Intel card here,
https://downloadcent...oadType=Drivers

Then grab the update for your AMD card here, grab the Catalyst Software Suite,
http://support.amd.c...=Windows 7 - 64

I can update my Intel integrated graphics, but how do I fix the unsigned driver issue? Should I just re-install it? The drivers for AMD are INCREDIBLY unstable, I'm rather worried about what might happen if I try to uninstall them if that be the case.

It also claims that I cannot update my Intel drivers as they are not "validated for my computer".

Quote from cestislife

I am well aware. Though it won't be an issue as your computer will fall back to the HD4000 for rendering. I wouldn't worry too much about it being unsigned, it's from AMD themselves, shouldn't provide you with much troubles. I've found that you can only successfully update the AMD card if you have updated the integrated card in most cases for laptops.

Well, It worked haha, I did it through device manager and never touched my AMD drivers only my Intel ones. Thanks for the help!