P IV and LCD Monitor trouble

[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

[ajk]

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.

[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.

[zipper]

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

[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

[ajk]

It doesn't need to be, you can either use the "Sample data" button to query your monitor for details, or just enter the information manually on the right hand side.

Then after that you can press "Continue" and you'll see a list of the defined modes on the right side and various presets on the left side. If the selected modes have a refreshing rate of something like 100Hz, that is most likely the problem.

Press "Continue" again and you will then be able to edit all of the modes. Basically you just need to turn the "Scan rate" to something like 60Hz (or whatever your monitor supports) and then test the display settings to see if it works.

[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

[ajk]

Do you see something like:

PicassoIV:1024x768(16M, 60Hz, 48kHz)  ?

There will probably be a bunch of these lines for the different modes. It's the value with "Hz" that is interesting, if that is above or below what your monitor can handle, the mode isn't going to be displayed.

You could basically delete all modes except the flicker fixer modes and a couple of the 1280x1024 modes from the list, if it's bothering you that there are so many, but it's not necessary.

In any case you can go on to the last screen with Continue, you'll then be able to select any of the modes in the drop-down menu and change the refresh rate setting. Once it's set to something that the monitor can handle, you can test that it definitely works by testing "Test computed display settings". If you see an image with the offending monitor, you can save the changes, if not, press space or some other key to get back into the editor.

There shouldn't be much cable swapping once you get at least one mode working and set Workbench to use that.

Oh, and "PAL ... 49Hz" would explain why that doesn't work; it's clearly out of bounds for your monitor (56-76Hz).

[zipper]

You can edit those PAL  and NTSC flickerfixer modes upto 160 Hz.

[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?

[ajk]

You need to press the "keep computed settings" (or something to that effect) button and then save all the settings in the menus before you exit. I can't check the exact names of the menu items right now, but you should be able to figure it out. Almost there