screen error after update

Chuck Vose vosechu at gmail.com
Thu Feb 3 15:54:24 UTC 2005


In your xf86config-4 file look for the line:

	SubSection "Display"
		Depth		24
		Modes		"1024x768 at 75" "832x624" "800x600" "720x400" "640x480"
	EndSubSection

Notice the @75? Try deleting that or lowering it. My understanding is
the LCD's usually work at lower refresh rates than that.

In the xlog.txt if you search for lines containing (WW) you'll find
all sorts of good errors to play with, the error that led me to
looking in the xf86config-4 file for bit depth was about 2/3s of the
way down:

*(WW) (1280x1024,FLATRON L151) mode clock 108MHz exceeds DDC maximum 80MHz
(WW) (1280x1024,FLATRON L151) mode clock 135MHz exceeds DDC maximum 80MHz
(WW) (1280x1024,FLATRON L151) mode clock 157.5MHz exceeds DDC maximum 80MHz

farther down:
(WW) I810(0): Failed to set refresh rate to 72Hz.

So we know it doesn't like something about the 1280x1024 ranges and we
know it's failing to set 72Hz (which might actually be a misspelling
of MHz?). I hope this helps you understand what's going on in the log
file, my guess is that you'll continue to have to deal with X.log
files for a few more years until Linux attains perfection :)

Please let me know if this doesn't work.

-Chuck




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