I`ve just bought myself an Dell 22" LCD widescreen monitor and will mostly use it for my PowerBook. But I also want to use MorphOS.

So I have 2 questions..

1)
Will Ambient run in 1680 x 1050 screenmode? And what is the best option when switching from my LG to DELL? How do I switch MorphOS/Ambient to standard VGA mode etc?

2)
What is the best thing to do with ModeEdit as DELL isnt listed there.

I hope for some ok answers. Thanks!


[ Edited by MorphDelf on 2007/1/29 11:45 ]

all you have to do is to create a new profile in ModeEdit for your screen and tweak it until you got nice picture displaying.

1) ambient will run in whatever you set to it... like workbench... i made working a resolution of 2400x1600 on my crt... to set it to vga, create in modeedit settings a new resolution of vga parameters (640x480x60), save it, and set it to the ambient... this should help a lot...

2) setup all the frequencies of your lcd to the modeedit monitor preferences... then just create your resolutions...

bye, MarK

Morphdelf
Stop bragging!!

Please post here you results with this monitor and screenmode. Thx

magnetic

i made working a resolution of 2400x1600 on my crt

How did you do that Mark?

just play with modeedit, and you should do it also... with good crt... mine has 265 MHz bandwidth, 110 kHz, 150 Hz maximums... i used these, and the maximum visible was the 2400x1600 interlaced... not much usable... but visible :)

bye, MarK.

I thought MOS dosn't support such big resolutions!?!

@player:

Morphos supports even bigger resolutions w/o problems. MorphOS 1.4.x ModeEdit doesn't accept certain ranges you need to setup TFT compatible modes in higher resolutions AFAIK (or its just hell tricky todo so).

@mark:

you cannot compare CRT setup with TFT setup (seriously). TFTs have some limitations you need to know, which make no problems on a CRT.


There is also a big difference between Analog->TFT or DVI->TFT. Over DVI the PixelClock has a certain limit, so you cannot get it as high as you can increase it when you're using an analog cable to connect to your monitor. Keep that in mind.


I'm using following setup to connect my PEG over DVI to my EIZO S2110W (also 1680x1050).

Type: 24bit
Scan Mode: Normal
Pixel Clock: 146618900Hz

Horizontal Timing:
Resolution: 1680
Sync length: 576
Pulse Offset: 104
Pulse Length: 184
Polarity: Negative
Frequency: 64.9906 kHz

Vertical Timing:
Resoution: 1050
Sync length: 37
Pulse offset: 1
Pulse length: 3
Polarity: Negative
Frequency: 59.7889 Hz


This mode is not 100% the mode we want, but my display accept it just fine.

Another Tipp: prefer DVI over Analog to connect to your TFT. Use Analog only if you have problems to setup it over DVI and then switch. It's smart to make a few standard low resulution VESA 60Hz modes first (800x600 etc.) which you can use as fallback.


Hope this info helps. Good luck (you'll need it ;) !

regards,
tokai

Where i can find params Sync length,Pulse offset,Pulse length and PixelClock for 1600x1200 in monitor NEC LCD2070NX?

I have some problem when connect it using DVI. sometimes i have bad screen sync in morphos. If me using analog cable no any problem.

@tokai

I think the specification for DVI limits the bandwidth
so screenmodes much above 1600x1200 (UXGA) at 75 Hz
are not possible.

I agree, DVI is 1000x better than analogue.

I would have thought 1650x1050 @ 60 Hz should be in spec.
I wonder if this is the native res.

People should remember to turn the monitor on before you
power up your computer. Most GFX cards turn off DVI
output if they can't detect the monitor.

koan

I bought myself ATI Radeon 9250 in the store with DVI output, and then got perfect picture in 1680x1050. I dont know why the picture is stretched in vga mode though, or when it hits perfect picture it`s then to small.

1680x1050x24.jpg

Configuration as follow:

Horisontal Timing:
Resolution: 1680
Sync Length: 400
Pulse Offset: 8
Pulse Length: 136
Polarity: Positive

Vertical Timing:
Resolution: 1050
Sync Length: 34
Pulse Offset: 1
Pulse Length: 4
Polarity: Positive

This configuration is for DELL 22 Widescreen monitor, which got 1x vga and 1x dvi contact. Costs at the moment 4000,- at DELL store on www.dell.no

Conclusion:
Widescreen mode at 1680x1050 dosent work as it should thru VGA. Why? I don`t know. So if you use MorphOS (I dont have PPClinux installed so dont know anything about it etc), I recommend to use DVI. The picture becomes crystal clear and it beats MacOSX on PowerBook 12" 1.5GHz (tested) in brightness and contrast!

Card type used for testing: ATI Radeon 9250 with DVI and ATI Radeon 9000 with only VGA.

So yes, MorphOS can be shown in widescreen!


Regards,
Michal, www.amitopia.net

[ Edited by MorphDelf on 2007/2/3 0:38 ]

Hi AmiS,


I'm using a NEC LCD2080UX.

IIRC I just used one of the 20" settings in the list of available monitors and just entered the horizontal / vertical frequency settings (which should be available rather easy from some datasheet).

I calculated the bandwith myself (there should be already a thread on MZ where I posted a link how to calculate the bandwith).

The other setting I left and it did work.
However I use VGA most of the time, because I have a Digitus Connect KVM switch and I don't want to switch my monitor and my keyboard/mouse separately.

Well, If I get some money, I'll buy a KVM switch that supports DVI instead of VGA.



Bye HAK

@amidelf:

more interesting are the frequencies you dump to the monitor with your settings. WHat vertical/ horizontal frequencies you get that way? And is that the optimum for your monitor (usually 60Hz is best)? :)

regards,
tokai

Horizontal:
64.9038 kHz

Vertical:
59.8743 kHz

Morphdelf

Thanks alot for the post and details! I just purchased a Dell 20" widescreen the 2005wfp (gen before yours) I'll probably be trying your setting as that is the optimal res. however, i'm going to try through VGA because my PC is on the DVI and I switch between the two. What problems did you run into?

magnetic

PS Anyone else running Widescreen LCD?

Morphdelf: do you get banding issues on your DELL?

@magnetic

Oh no!

If you have LCD, DVI is the only way to connect. VGA
always looks terrible! The timings for analogue from
graphics cards just can't match the accuracy.

Get another monitor for the PC...

koan

I'm curious about this DVI thing... I assume that the signal sent to the screen is no longer analog, but digital. So, I presume, all this talk about frequencies (analog) would not apply, and even ModeEdit itself (program to tell the graphics hardware how to modulate an analog signal, in order to make it fit the monitor) would not be neccesary.
Am I right somehow? Even a little little bit?
In all: What do I have to do to use DVI output in MorphOS?

@jcmarcos

Yes, the signal on DVI is digital RGB.

The picture quality is better than analogue VGA because bytes map directly to pixels. That's also why you don't need to set up horizontal timings. However, you do need to output pixels at the right speed to refresh the screen.

I don't know about software drivers for DVI or how MorphOS works with DVI. Theoretically, mode edit is redundant.

An interesting feature of DVI is EDID. EDID is the Extended Display Identification Data: Your graphics card can ask the monitor what screenmodes are available and even what is the preferred screenmode. Some graphics cards support a similar feature on VGA called DDC. I don't think MorphOS drivers support EDID or DDC.

In hardware support; I think this and software system shutdown are the biggest two features missing from MorphOS. I guess MorphOS team would say that graphics drivers are not actually part of MorphOS.

(DVI is specified by the Digital Display Working Group.)

Koan
I run my NEC 1810x LCD with VGA from Morphos and it looks great - granted not as good as DVI but it looks nice.

The graphics drivers are of course part of MOS - even though its Cybergrafx its part of the OS.

magnetic

ps: Shutdown is a part of "1.5"

[ Edited by magnetic on 2007/2/15 12:08 ]

MorphDelf
I'm trying to get the native mode like yours on my Dell 2000FPW widescreen 20in LCD display. i"m using the VGA output on my Radeon 7500 (r200) agp card.

What are the complete settings you used in ModeEdit. I tried with my 18in NEC lcd setting and putting in your numbers but when I go to "test" it shows like this weird quarter screen 320x240 image! Really weird.

I can display my ambient in 1280x1024 but have big black bars on either side of the display. I can also have it stretch to widescreen but the aspect is all wrong...

Any help here is appreciated.

Thanks
magnetic

VGA output isnt correct, or atleast in morphos. You should get a gfx card with DVI output, then its correct. I dont know why its like this.

So, I am using my Powerbook on vga and PegasosII on dvi. The difference between vga and dvi is nearly nothing. Atleast I have problems see the difference.

Could you be so kind to provide me with some already made modes for my Pegasos? I have a ATi Radeon 9250 (256MB), and an six year old unbranded 15 inch CRT monitor, whose manual was lost ages ago.
I don't have the timing figures for it, should I use the generic "48Khz", "60 Khz", or that's for very old monitors? Which are the usual maximum timings for these kind of monitors?

hmm.. i dont know. Try to find out with first testing out the VESA modes. With DVI there is no problem. It either work or does not work :)

What sort of monitor do you have?

Hi there,

maybe I will buy a wide screen TFT,too, so this thread is quite interesting for me.

If you managed to get a proper 1680x1050 screen running for ambient, what happens if you play games like HereticII? Will the 4:3 screenmode be stretched or is it possible to play in a wide screen resulution so you will see more of the landscape left and right like it seems to work with pc games?

Here is my modeeditsetup:
1680x1050_1.png
1680x1050_2.png

These settings are for my Dell monitor. You should have a manual with your monitor. Check it for screenmode prefs.

MorphOS running in 1680x1050:
1680x1050_3.jpg
1680x1050_4.jpg
1680x1050_5.jpg


fXpaint running in 1680x1050:
fXpaint.jpg


I hope that this helps something.

btw.. morphos is brilliant in 1680x1050. Very cool to play fuhquake in 1280x1024 also.. playable :) or how about snes9x in a window on ambient desktop. Very cool... also the morphos DVI support is sharper and better than on my Powerbook. But that can have something to do that my mac uses GeForce.

Regards,
Michal