I have a 9250 with 128mb in my efika, its max res is 2048x1536. My monitor is a 22" doing 1600x1080 native.

MOS2 boots up in 640x480, making things impossible to use.

Is there any way to force a resolution? Pres is useless as when I change the screen size it just reverts back to 640x480.

kinda annoying...

anyone got any ideas?

when it boots up I see this acros the console;

Code:

Tho MUI prefs show the screen as a Radeon9200Pro...

Looks like it does not like my monitors DDC info....


[ Edited by yakumo9275 on 2008/8/10 11:56 ]

I guess you can not try DVI?

You could create new screenmode from Monitors page at system settings. Create screenmode which matches your monitor's native resolution and use this resolution in screenmode settings.

I think there's something funny with how MOS works here. I connected my Peg to a DVI-splitter with both DVI and HDMI output. Understandably, MorphOS could then no longer recognise the preferred resolution of my monitor (and not the projector either ). But when I changed the screenmode, MOS would change it back to some ridiculously low resolution. When I created a new one and saved that, it worked though. The projector screenmode also works very nicely. MOS on an 108" display rocks.

Do a early boot (might need to do it a couple of times for res to take)

press any key or esc. then return during boot
type boot hd:0 boot.img bootmenu

select screen pref. you want

boot

i have the same issue, and have been unable to correct it. My opinion is it must be done in the uboot phase, of installation, but could be wrong

Quote:

In case DDC (automagic monitor detection) fails for you, you simply need to launch system preferences/monitors and edit your monitor as you would with MorphOS 1.4.5 or AmigaOS3/CybegraphX.

Btw, Pegasos and Efika use OpenFirmware, not uboot ;)

Have you ever tried to add a monitor/mode to the system like that? its horrendous. you need to know all kinds of archaic info. I could not find all the values the app wanted to create the correct resolution.

but ... is it so different under MOS 2.0?

On 1.4.5 you pick New and a lot of resolutions presets are showed.

If you need some "custom" resolutions, pick one close, modify it and Mode Edit will change all the others settings accordingly.

I could do that... if it listed any resolution even CLOSE to what I need. I need 1680x1050.. thats a big difference from 640x480. There are a lot of numbers that need to be changed and I dont know what they are.

It is not like you just input your width + height and it works.

All the information you need is supplied with your monitor (and I bet easy to find online too). There's also a list of predefined monitors you may choose from.

There is a preset supplied for 1680x1050, just pick it from the list.

Golem;
A) I have no presets. There is no preset list. There is NOTHING. You make it sound so easy "just click on the 1680x1050" like I'm some kind of retard. If I had the option to just click on the 1680x1050 preset, maybe I would have done that and not posted this diatribe.

If only things were so simple.

Jacadcaps;
B) The only info about this monitor around on the net is the basic stuff (hori/vert frequency range), it doesnt tell me things I need like the settings MOS wants (the technical stuff).

Knowing that the monitor can do 31 - 83 KHz horizontally doesnt help

I dont have info on Sync + Pulse lengths / offsets, ntve/ptve polarity information, etc.

Everything I try causes my monitor to throw out of bounds signals, so I'm loathe to just try lots of different stuff in case I cause a problem.

Is my video bandwidth (in Hz) the same as the pixel clock?

the obvious solution to the problem is the broken DDC info. Windows has no problem with the DDC info, but MOS does. If I knew why MOS was reading the DDC info wrong, it would be something to start with.

anyway. Thanks guys for your suggestion, I guess I will try a few different values or jut give up on mos, since I cant buy a new monitor just to 'fix' MOS.

Ah well.. why don't you start by telling us which monitor you own, and where in MorphOS settings you are looking.
Is it 1680x1050 or 1600x1080 btw? On my setup it seems possible to create a suitable 1680x1050 resolution without much trouble. Just needed to input H/V freq and bandwidth. But I'm probably doing something wrong.

Quote:
No, it's not. Actually, if the monitor is automagically recognized, it's easier, because you don't have to do much - I use a CRT monitor, but at AIConf08 I connected the Efika to an LCD monitor maurensen lent me, and at the first boot everything was already configured and working in 1024x768...
But even if the monitor is not recognized you can do it the 1.4.5 way, exactly the same...

So, it's:
System Settings -> Monitors -> Create
There should be a list of screenmodes to chose from. If there aren't those you need probably your monitor is not recognized. So, from the monitor settings, chose Modify... and pick your monitor or something with the same caracteristics. Then you should be able to create the correct screenmodes.

Kind regards,
Andrea

after a lot of messing around, I owe golem an apology :) I finaly got MOS to boot and have the 1680x1050 preset in the list.

I had to mess with the vga/hdmi swapping inputs for some reason it wouldnt see it on the vga, and finally chaning monitor all the way up to its max 81HZ then it appeared in the preset.

maybe it was a bad vga cable?

anyway, I'm a dumbass and owe Golem an apology. Sorry mate.

NP, glad you got it working :)

@yakumo9275

erm ... cough, cough!