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Author Topic: Benq XL2410T, Can't handle 15KHz as the specs say  (Read 6147 times)

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Offline DamigaTopic starter

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Benq XL2410T, Can't handle 15KHz as the specs say
« on: March 17, 2011, 09:50:52 AM »
Hi,
 
I just wanted to put the word out that I've tried the Benq XL2410T that according to tech specs should be able to handle 15KHz.
 
I couldn't get it to work, I just got "out of range" message on screen. I used an Amiga->VGA adapter.
 
Worked with Euro72 and Multiscan screen modes though, but almost all LCDs do that I believe.
 
 
That's all folks!
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Offline Kronos

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #1 on: March 17, 2011, 09:55:19 AM »
You might have more luck with NTSC-modes.
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Offline DamigaTopic starter

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #2 on: March 17, 2011, 11:16:44 AM »
Didn't try that and it's to late now because I returned it to the shop.
 
Even if that did work it still wouldn't be usable for gaming, at least that's what I've read because most games are PAL.
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Offline Thomas

Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #3 on: March 17, 2011, 11:26:17 AM »
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Offline hardlink

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #4 on: March 17, 2011, 03:57:32 PM »
Quote from: Damiga;622411
Hi,
I just wanted to put the word out that I've tried the Benq XL2410T that according to tech specs should be able to handle 15KHz.
 


I've been on a decade-long quest for a native 15KHz RGB LCD monitor. Back when that scan range was more common I got a used one that definitely had 15Khz in the specs, but not in the electronics. Since it was used, I couldn't return it, either.
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Offline DamigaTopic starter

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #5 on: March 17, 2011, 06:16:35 PM »
Quote from: hardlink;622496
I've been on a decade-long quest for a native 15KHz RGB LCD monitor. Back when that scan range was more common I got a used one that definitely had 15Khz in the specs, but not in the electronics. Since it was used, I couldn't return it, either.

Yeah, 15KHz monitors... the Holy grail for Amigans :laughing:
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Offline DamigaTopic starter

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #6 on: March 17, 2011, 06:30:21 PM »
« Last Edit: March 17, 2011, 06:43:04 PM by Damiga »
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Offline psxphill

Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #7 on: March 17, 2011, 08:38:30 PM »
Quote from: Damiga;622530
Yeah, 15KHz monitors... the Holy grail for Amigans :laughing:

In europe it's easy, just buy an lcdtv with an rgb scart socket.
Although if you want it to support vga as well without switching inputs it might be harder.
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Offline Xanxi

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #8 on: March 17, 2011, 08:59:59 PM »
Quote from: psxphill;622570
In europe it's easy, just buy an lcdtv with an rgb scart socket.
Although if you want it to support vga as well without switching inputs it might be harder.


Yeah but there is no more LCD TV in 4/3 format. Everything is now 16/9 or 16/10.
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Offline droopy

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #9 on: December 24, 2011, 05:07:59 AM »
I contacted Benq support about the XL2410T and got these specs

Resolution  Pixel clock     H-sync          V-sync         H-sync (unit:pixel)  Display (unit:pixel)
480i              13.5         15.734             60               858                          720
576i              13.5         15.625             50               864                          720
640x480p      25.175       31.468           59.94            800                          640

So perhaps the Thread starter had a faulty videoport ? or something else ?

the monitor seems to support both ntsc and pal tv modes..
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Offline freqmax

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #10 on: December 24, 2011, 06:52:56 AM »
Many monitors seems to refuse 15 kHz on VGA port. Thus use CVBS / SCART / Component etc..

Another nasty possible modification can be to replace crystals on the monitor controller board by half such that recognise a 15 kHz vertical sync as a 31 kHz vertical sync..

(if no suitable crystal is found, a D-flip-flop can be used)
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Offline zipper

Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #11 on: December 24, 2011, 08:26:54 AM »
I have a visa versa situation - my BenQ FP222W does 15 kHz on Windows against the spec which starts at 24 kHz. But running outside of the spec it may be picky - earlier I just got out of range messages but then something may have been changed on NVidia drivers so now custom screens from 320x200 up do work. But timing might be critical - haven't tested Amiga 15 kHz output.
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Offline TheDaddy

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #12 on: December 24, 2011, 08:43:14 AM »
@Damiga

I have the same monitor, I'll try it and let you know.

It's awesome by the way at 120Hz! ;)

I have it connected to my SAMOS4.1upd4 via aHDMI-DVI cable it looks amazing especially at 1920x1080!

These are the specs here in the U.K.

Horizontal Frequency (Max) KHz   VGA/HDMI: 15kHz ~ 83
DVI-DL: 30 ~ 140
Vertical Frequency (Max)Hz   VGA / HDMI: 24Hz ~ 120
DVI-DL: 56 ~ 120

320x340 (256) don't seem to work :(
« Last Edit: December 24, 2011, 01:02:19 PM by TheDaddy »
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Offline freqmax

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Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #13 on: December 24, 2011, 08:58:38 AM »
DVI/HDMI offers way more options for frequencies and resolutions.
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Offline Matt_H

Re: Benq XL2410T, Can't handle 15KHz as the specs say
« Reply #14 on: December 24, 2011, 01:53:01 PM »
Others here have reported that a 24" Benq works with 15KHz modes - can't recall the precise model. It's in the thread about the Dell SR2320L, though.
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