P IV and LCD Monitor trouble

[dougal]

My A4000T with Picasso IV works great with the CRT SVGA monitor it is connected to, but id like to have it connected to an LCD.

I had connected it to a 22" Widescreen LCD and that worked perfectly, but i have since then sold the 22".

I have a 17" LCD which would be perfect but whenever i try using it it says something about the signal being out of range.

I remember running into the same problem with my (now sold) A4000D which had a ScanMagic/FlickerMagic. Worked fine on the 22" but not on the 17" LCD.

Is there a way i can force the Picasso or the monitor to be compatible with each other?
A setting or something?

[dougal]

You could try the 7.5 firmware released a few days ago to see if that solves your problem?

Tried that, but still the same.

It sort of looks like its gonna try and give a pic when Amiga is turned on and then it says "Out of Range" then during boot again looks like its gonna give a display "gives a dark grey screen" and then again says "out of range"

[dougal]

I've just been adjusting my P96 drivers to work with my Radeon card.  Initially almost all the modes were "out of range".  Just go into your Prefs folder, open the PicassoMode prefs and start adjusting the screen modes one at a time using the "clock" slider bar.  As you slide it back and forth from left to right you should see the Horizontal and Vertical frequencies below change.  My monitor supports 28-82KHz and 50-85Hz.  I created a 1920x1080 screen mode, set the clock at 159.75MHz which gave me a 65kHz and 54Hz frequency which (using the TEST button) gave me a rock solid picture.  Once you find a screen mode that works then SAVE your settings.  Reboot, go to your Screen Mode Prefs, select it, TEST it and if it works then save or use it.

I cant do that while the LCD is connected as i get no display... Could i do it while the CRT is connected and then switch monitors?

[dougal]

You could try to bring your amiga up in an NTSC mode, maybe the 60Hz are enough to get your display to work.

Hold your left and right mousebuttons at boot time to get into the Early startup menu and then hit space. That should switch to ntsc or pal. Look what happens.

Does your lcd on screen menu say something about the frequency ?

regs
Masta

Cant even see the early startup using the LCD, so i cant do that unless ....maybe i can push space bar i didnt think of that

[dougal]

I can see a display if i boot up into early startup and then press spacebar for ntsc but when i boot up it goes back to pal or something because i lose the display

[dougal]

I have exactly the same problem with my Picasso IV and the 3.9 boot floppy. On all other occasions it works perfectly... every 3.1 boot floppy I've thrown at it works - just the 3.9 emergency boot that doesn't.

Maybe you can deactivate some modes/resolutions in the Picasso preferences program? Also, you can remove the PAL monitor in DEVS:Monitors and only leave NTSC and PicassoIV, maybe that helps?

Would games run badly if i do that? and would i get a display using amiga native stuff (Not RTG) ?

[dougal]

For me the flicker fixer on the Picasso card works fine, except for this 3.9 emergency bootdisk issue I encountered (which still doesn't work - I need to try the 7.5 update).

I tried the 7.5 update. It did nothing for me

[dougal]

Which modes don't work? Native modes (scandoubled), RTG modes, or neither?

Have you edited (using a display that works) the refresh rates to something your LCD can definitely accept? 60Hz is usually a safe bet.

How do i do that?

Sorry all the questions, its just that the corner where i managed to put my A4000T its very difficult to keep changing VGA cables between the CRT and LCD and so id like to do as little cable switching as possible.

[dougal]

Using this:
http://www.google.fi/url?sa=t&source=web&cd=4&ved=0CDEQFjAD&url=http%3A%2F%2Fwww.sophisticated-development.de%2Fsoftware%2FP-IV%2Fpmtng-2.9.lha&ei=lXWGTIGcFsnaOJyAvdcO&usg=AFQjCNGo4qWzh1LUIovsJvjYgM1wG4jHvw

Installed.. But my Benq monitor isnt listed

[dougal]

Specs for my LCD

Technical Information:

·  Screen Size: 17.1"

·  Resolution: 1280x1024 (SXGA)

·  Pixel pitch: (mm) 0.264 mm

·  Display Colors: 16.2 million

·  Horizontal Frequency (KHz): 31 - 81

·  Vertical Frequency (Hz): 56 - 76

·  Video Bandwidth (MHz): 25 - 135

·  Viewing Angle (L/R;U/D): (CR>=10) 140 / 130

·  Contrast Ratio: 500:1

·  Brightness: 400 cd/m2

·  Response time: 8 ms

[dougal]

Sample Data detected my monitor , even make and model

[dougal]

I cant get the second part.. When i press continue i have the Active display modes.

PAL (Flicker Fixer , 49 HZ, 31 `khz)
NTSC (flicker fixer 59, 31)

and a bunch of picassoiv resolutions

[dougal]

Ok... in TNG i managed to detect the LCD and change a setting to 57Hz and the test worked and gave a perfect display on the LCD.

But after i reconnected the crt to save etc... I still cant find the 57z resolution on the display in prefs..

what have i missed?