X11: The Displayed Image Is too Small or Distorted

Support knowledgebase (cg_bildstoerung)
Applies to

SuSE Linux: Versions since 5.3

Symptom

You have configured a graphic card with SaX, but the displayed image is too small and can be not resized by using the monitor's setting functions. The image may also be horizontally distorted or a bright stripe at the upper or left edge may be displayed.

Cause

In most cases vertical or horizontal deflection frequencies have been set too high. SaX uses the values entered or retrieved from the monitor database to calculate a modeline with the highest possible refresh rate, since this is preferred by most users. Obviously, the monitor's deflection unit does not cope with the high frequencies, thus distorting the image.

Solution:

Please reduce the highest admitted value for vertical and horizontal deflection frequencies in SaX at menu item `Monitor'->Properties. The displayed image will be usually clear and accurate by reducing the vertical deflection frequency to approx. 85 Hz. Check now if the image is displayed correctly.
See also:
o X11: The Mouse Cursor Looks Like a Bar Code or Is Missing

Keywords: X11, IMAGE, DISPLAY, MONITOR, DISTORTED

Categories: X Server

SDB-cg_bildstoerung, Copyright SuSE Linux AG, Nürnberg, Germany - Version: 06. Jan 2002
SuSE Linux AG - Last generated: 08. Jan 2002 by glazzar (sdb_gen 1.40.0)