White screen after clicking play

[KushBo]

As soon as I click play on any modpack the game window goes all white.

http://paste.ubuntu.com/18113138/

Figured it out. I had to downgrade java.

[FCPWiz]

[B#347] 2016/06/29 13:24:47 [INFO]  org.lwjgl.LWJGLException: Pixel format not accelerated
[B#347] 2016/06/29 13:24:47 [INFO]  	at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
[B#347] 2016/06/29 13:24:47 [INFO]  	at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
[B#347] 2016/06/29 13:24:47 [INFO]  	at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:244)
[B#347] 2016/06/29 13:24:47 [INFO]  	at org.lwjgl.opengl.Display.createWindow(Display.java:306)
[B#347] 2016/06/29 13:24:47 [INFO]  	at org.lwjgl.opengl.Display.create(Display.java:848)
[B#347] 2016/06/29 13:24:47 [INFO]  	at org.lwjgl.opengl.Display.create(Display.java:757)
[B#347] 2016/06/29 13:24:47 [INFO]  	at net.minecraft.client.Minecraft.a(Minecraft.java:360)
[B#347] 2016/06/29 13:24:47 [INFO]  	at net.minecraft.client.Minecraft.run(Minecraft.java:738)
[B#347] 2016/06/29 13:24:47 [INFO]  	at java.lang.Thread.run(Unknown Source)

Please press WindowsKey + X and click on "Programs and Features" and uninstall all copies of Java. After that, install Java 7 from this link: http://cdn.lemonmc.com/jre-7u80-windows-x64.exe Start up the launcher and try again.

^ from TechniKhitty

Edited July 7, 2016 by FCPWiz