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Old 05-11-2006, 02:05 PM   #1
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Registered: May 2006
Location: Berkshire, UK
Distribution: Fedora Core 5
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How to find my horizonal and vertical refresh rate

Hey Guys Hi New here - hope you'll be patient with me.
Don't know if I should have posted this in s/w actually - sorry - already off to a bad start ;-)

I've installed Fedora Core 5 on an old box fine. I'm trying to install it on a Dell box which i've connected to my Phillips HDTV - well its fun using the picture in picture functionality and means i didn't have to buy a new monitor.

When I install using the gui it gives me a blank screen. Its fine if I do the text install. I'm thinking it can't probe the hardware and work out what to set the horizontal and vertical rates.

I don't think this info is in my TV manual.
I'm running win XP( - lol) on the box at the mo but I don't think the info is shown there either. The version of knoppix I tried didn't help either nor did sisoft sandra.

Anyone have any other ideas to find out what to try.
Old 05-12-2006, 07:11 AM   #2
Registered: Mar 2006
Distribution: BackTrack, RHEL, FC, CentOS, IPCop, Ubuntu, 64Studio, Elive, Dream Linux, Trix Box
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Its posted on the back of the tv / monitor or whichever vdo unit
Old 05-14-2006, 06:20 AM   #3
Registered: Sep 2005
Location: Old Blighty
Distribution: Slackware, NetBSD
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This might help:
Old 05-16-2006, 09:45 AM   #4
Registered: Mar 2005
Location: Winnipeg, MB
Distribution: Raspbian, Debian, Slackware, OS X
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you could try google: "xorg Phillips [model #] HDTV +VertRefresh +HorizSync"

The gentoo wiki that ioerror posted would probably be the first result too
Old 05-16-2006, 03:54 PM   #5
Registered: Sep 2005
Location: Old Blighty
Distribution: Slackware, NetBSD
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Yup, that's how I found it.

I've since discovered that hdtv supports a vertical refresh of 24, 30 or 60 hertz. This seems to be a standard, rather than related to any particular model of tv.

I didn't find a specific hsync range (I guess that's too technical for most hdtv sites ), but looking at the modelines in that gentoo wiki, ~33-45KHz (at least) seems to be a commonly supported range.


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