XFree86 Video Timings HOWTO : Fixing Problems with the Image. : The image is too deep (too shallow) vertically
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## 14.5. The image is too deep (too shallow) vertically

To fix this, increase (decrease) the vertical frame length. That is, change the fourth number in the second timing section. To avoid moving the image, also move the sync pulse (second and third numbers) half as far, to keep it in the same relative position.

Any distortion that can't be handled by combining these techniques is probably evidence of something more basically wrong, like a calculation mistake or a faster dot clock than the monitor can handle.

Finally, remember that increasing either frame length will decrease your refresh rate, and vice-versa.

XFree86 Video Timings HOWTO : Fixing Problems with the Image. : The image is too deep (too shallow) vertically
Previous: The image is too wide (too narrow) horizontally
Next: Plotting Monitor Capabilities