Monitor gives "Frequency out of range" error

Tommy2k4 · 01:04 PM

I've been using kubuntu dapper for a few weeks now and have had this error around 10 times, 4 of them were today

It doesn't happen on boot up like most of the other posts I found with this same error. It happens for no apparent reason, although a couple of the times happened when I was taking screenshots, but other times I wasn't.

What happens is any music playing will stop, the monitor will show lots of multicolored vertical lines, then after a few seconds it will change to an error saying "Attention - 31K / 0Hz Frequency out of range". the num lock light also goes off (if that makes any difference) and pressing ctrl alt f6 doesn't bring up the console so I don't know what the problem is. I rebuilt xorg.conf using dpkg-reconfigure and (after adding 1280x1024) this is my config.

http://paste.ubuntu-nl.org/16559

Someone in IRC recommended changing VertRefresh to 30-160 but that made no difference either.

I don't have a screensaver on either.

Thanks, Tommy

Tommy2k4

Sorry if double posting/bumping isn't allowed but this problem is still happening

Someone suggested that I add "acpi=off noapic nolapic" to the end of the kernel in grub menu.lst but that didn't solve it either

Does anyone have any idea what could help fix it?

Sonofmoog

I took a look at your xorg.conf and it looks okay. I'd consider backing down the resolution and color depth until you can get a better handle on your problem, so you might try changing default mode to 16, which should drop you to 1024 x 768 and 16 bpp. That's not a fix, just a suggestion for a workaround. HTH

Dubbayoo

Make sure those are the right HorizSync and VertRefresh numbers for you monitor. You might also want to try a modeline generator.

http://xtiming.sourceforge.net/cgi-bin/xtiming.pl
http://koala.ilog.fr/cgi-bin/nph-colas-modelines

Tommy2k4

Is there a console command to find out what refresh rates my monitor can support? I'm sure I've done it before but I can't remember it. This is a 15" CRT and that page for the modline says it shouldn't be done on 15" or less so I won't bother with that. I really don't want to use 1024x768 but I suppose I could try it for a while and see if the crashes stop.

June 26th, 2006	#1
Tommy2k4 First Cup of Ubuntu Join Date: Jun 2006 Beans: 3 Kubuntu 6.06	Monitor gives "Frequency out of range" error I've been using kubuntu dapper for a few weeks now and have had this error around 10 times, 4 of them were today It doesn't happen on boot up like most of the other posts I found with this same error. It happens for no apparent reason, although a couple of the times happened when I was taking screenshots, but other times I wasn't. What happens is any music playing will stop, the monitor will show lots of multicolored vertical lines, then after a few seconds it will change to an error saying "Attention - 31K / 0Hz Frequency out of range". the num lock light also goes off (if that makes any difference) and pressing ctrl alt f6 doesn't bring up the console so I don't know what the problem is. I rebuilt xorg.conf using dpkg-reconfigure and (after adding 1280x1024) this is my config. http://paste.ubuntu-nl.org/16559 Someone in IRC recommended changing VertRefresh to 30-160 but that made no difference either. I don't have a screensaver on either. Thanks, Tommy Last edited by Tommy2k4; June 26th, 2006 at 01:04 PM..

June 26th, 2006	#2
Tommy2k4 First Cup of Ubuntu Join Date: Jun 2006 Beans: 3 Kubuntu 6.06	Re: Monitor gives "Frequency out of range" error Sorry if double posting/bumping isn't allowed but this problem is still happening Someone suggested that I add "acpi=off noapic nolapic" to the end of the kernel in grub menu.lst but that didn't solve it either Does anyone have any idea what could help fix it?

June 26th, 2006	#3
Sonofmoog A Carafe of Ubuntu Join Date: May 2006 Beans: 126 Ubuntu 6.06	Re: Monitor gives "Frequency out of range" error I took a look at your xorg.conf and it looks okay. I'd consider backing down the resolution and color depth until you can get a better handle on your problem, so you might try changing default mode to 16, which should drop you to 1024 x 768 and 16 bpp. That's not a fix, just a suggestion for a workaround. HTH

June 26th, 2006	#4
Dubbayoo Way Too Much Ubuntu Join Date: Jun 2006 Location: Los Angeles Beans: 322 Ubuntu 9.04 Jaunty Jackalope	Re: Monitor gives "Frequency out of range" error Make sure those are the right HorizSync and VertRefresh numbers for you monitor. You might also want to try a modeline generator. http://xtiming.sourceforge.net/cgi-bin/xtiming.pl http://koala.ilog.fr/cgi-bin/nph-colas-modelines __________________ Intel Core 2 Quad Q9550 \| Gigabyte GA-EP45-DS3L board \| Antec P182 case \| Seasonic S12 II 430W \| 4GB G.Skill DDR-800 \| Sapphire Radeon HD 4850 512MB \| Samsung Spinpoint F1 1TB disk \| PIONEER DVR-216DBK DVD \| Viewsonic 22" LCD 1680x1050 \| Ubuntu Linux

June 26th, 2006	#5
Tommy2k4 First Cup of Ubuntu Join Date: Jun 2006 Beans: 3 Kubuntu 6.06	Re: Monitor gives "Frequency out of range" error Is there a console command to find out what refresh rates my monitor can support? I'm sure I've done it before but I can't remember it. This is a 15" CRT and that page for the modline says it shouldn't be done on 15" or less so I won't bother with that. I really don't want to use 1024x768 but I suppose I could try it for a while and see if the crashes stop.

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