Here is another photo of display glitch happening when the computer hangs. I got it with both the Radeon X1950 and the Radeon HD 4670.
What happens it at startup, the GNOME Shell desktop makes an animation, expanding itself from the center of the screen. In such screenshot, we see the computer hang before the full size of the screen is reached (blues square is the frame of the screen).
Here is another photo of display glitch happening when the computer hangs. I got it with both the Radeon X1950 and the Radeon HD 4670.
What happens it at startup, the GNOME Shell desktop makes an animation, expanding itself from the center of the screen. In such screenshot, we see the computer hang before the full size of the screen is reached (blues square is the frame of the screen).