This problem seems to only happen on Mac OS X, as far as I can tell from talking to other users. I updated the LWJGL to 2.9.0 and launched Mincraft 1.5.2 with Forge version 7.8.0.716 and the game loaded upsidedown. This happens with both Java 6 and 7. Making the game fullscreen with F11 solves the issue only while in fullscreen. Downgrading LWJGL also fixes the issue. Minecraft 1.6 will ship with LWJGL 2.9.0 in the future, so this could pose a problem.  I just wanted to let you guys know about the issue. Thank you in advance.

 

Stats:

 

OS X v10.8.3

Java 7 (Macs can use Java 7 for Minecraft with the new LWJGL 2.9.0)

Minecraft v1.5.2

Forge v7.8.0.716

LWGJL v2.9.0

 

Does it work properly without Forge?

Yes, it works fine without Forge. And to clarify I tested it with Forge being the only mod. It also works fine on Minecraft 1.4.7 with Forge v6.6.2.534 and Minecraft 1.4.7 Vanilla.

This would be an excellent point where you would post pictures.

However, try different versions of Forge and see if this happens.

Rendering wise nothing much has changed lately. Esp nothing that would cause it to go 'upside down'

Sure there sin't any LWJGL bugs floating around?

Sadly none of us have a mac so we can't attempt to duplicate this.

 

Hi

 

The issue does not appear in fullscreen mode. The screen is inverted in windowed mode but the mouse input is not inverted.

 

a Screenshot is at http://cl.ly/Pa0z

 

I am using:

Mac OS X 10.8.4

Java 7 u 21

LWJGL 2.9.0

Minecraft 1.4.7

Forge 6.6.2.534

(direwolf20 mod pack)

 

any help with this issue would be greatly appreciated

I had the same problem.

 

In Minecraft 1.5.2,

- Forge 7.8.0.684, 687, 688, 689 has no problem

- Forge 7.8.0.690, 700 has the problem of 'upside down'

 

My environmental:

Mac OS X 10.8.4

Java 7 update 21

LWJGL 2.9.0

Minecraft 1.5.2