Hsync vsync VertRefresh... mmm... ok?

mimithebrain · 10-03-2005, 01:09 PM

So how do I figure out what is the Hsync and VertRefresh to put in my xorg.conf anyway? All the xorg.conf that I could find on the net for my laptop/ATI card have different settings..

It did happen a few times that I got stuck in xorgconfig on multiple computers trying to figure out what is the setting again.

Is there a way to know exactly what is the hsync and VertRefresh settings for a monitor?

ilikejam · 10-03-2005, 04:27 PM

RTFM.

Your monitor's manual, that is.

Dave

mimithebrain · 10-03-2005, 04:36 PM

nice.

I have a laptop. (I wonder if it's in the laptops manual?)

thanks. I'll check later.

mimithebrain · 10-03-2005, 04:55 PM

not there

ciotog · 10-03-2005, 04:55 PM

Try the following as root:

Code:

get-edid | parse-edid

This assumes that read-edid is installed on your system, and that your video card/monitor supports EDID..

ilikejam · 10-03-2005, 04:58 PM

Have a look at the specs for an LCD monitor of a similar resolution to yours, and plug in whatever refresh rates it uses.

You could have a go with this:
http://xtiming.sourceforge.net/cgi-bin/xtiming.pl

Put in the resolution, and a vert refresh of 60 (LCDs are usually 60Hz refresh), then hit the calculate button.

Dave

mimithebrain · 10-10-2005, 11:48 AM

Quote:

Originally posted by ciotog
Try the following as root:

Code:

get-edid | parse-edid

This assumes that read-edid is installed on your system, and that your video card/monitor supports EDID..

I get

Code:

	# EDID version 1 revision 2
Section "Monitor"
	# Block type: 2:0 3:0
	# Block type: 2:0 3:fe
	# Block type: 2:0 3:fe
	Identifier "LPL:0000"
	VendorName "LPL"
	ModelName "LPL:0000"
	# Block type: 2:0 3:0
	# Block type: 2:0 3:fe
	# Block type: 2:0 3:fe
	# DPMS capabilities: Active off:no  Suspend:no  Standby:no

	Mode 	"1440x900"	# vfreq 59.939Hz, hfreq 54.665kHz
		DotClock	96.210000
		HTimings	1440 1504 1536 1760
		VTimings	900 903 906 912
		Flags	"-HSync" "-VSync"
	EndMode
	# Block type: 2:0 3:0
	# Block type: 2:0 3:fe
	# Block type: 2:0 3:fe
EndSection

I guess I just stuff this is xorg.conf?

ciotog · 10-10-2005, 02:01 PM

It looks like your monitor doesn't report the HorizSync/VertRefresh ranges...

You can use the Mode section to create a modeline that should work (assuming the values are actually correct), in your case it would be

Code:

# 1440 x 900 Generated from EDID info
Modeline "1440x900"   96.21   1440 1504 1536 1760   900 903 906 912   -HSync -VSync

added to the end of your "Monitor" section.

mimithebrain · 10-10-2005, 03:07 PM

thanks