TH2Go setup difficulty...

Magic Man · Post by **Magic Man** » 12 Sep 2007, 20:27

Mine came yesterday very rapidly from Scan but only tonight been able to switch everything on.

Okay. Installed software and hardware but having some difficulties.

Firstly, running a 8800GTX (OC2) outputting to the TH2Go (with 3 19") and also to a 2407.

I seem to be having problems setting the TH2Go to 3840 x 1024, it only wants to go to 3840 x 768 on the slider and the monitors are reporting 1024x768..?

Any ideas (do have the correct modes loaded)

Magic Man · Post by **Magic Man** » 12 Sep 2007, 20:35

Rebooted, now I have an extra step on the resoluttion slider and can set the display to 3840x1024 but when I okay this, the 2407 drops from 1920x1200 to 1680x1050 as maximum...?

The 8800GTX has 2 dual link DVI outputs (the 2407 is running off a single link cable but I believe that is fine up to 1920x1200 anyway)

Any ideas...?

The GTX is meant to be able to run 2 displays at 2560x1200 so should be up to the task...

MatroxRulez · Post by **MatroxRulez** » 12 Sep 2007, 21:46

The GTX is meant to be able to run 2 displays at 2560x1200 so should be up to the task...

Well, dual 2560x1200 isn't enough pixels in your case.

3840x1024 + 1920x1200 = 3932160 + 2304000 = 6236160

2x2560x1200 = 6144000

Magic Man · Post by **Magic Man** » 12 Sep 2007, 22:34

Sorry, correction. Should be 2 x 2560x1600 i.e. 2 30" screens

Anyone running a TH2Go together with a 24" (or more)...? both on DVI?

wphan · Post by **wphan** » 13 Sep 2007, 11:38

im not 100% sure of this but it may be nvida related? i can get my system with the ati card to display on 2 diff monitors with both different resolutions. but on my nvida system i can only span it and can't set the resolutions of the monitors separately.

Magic Man · Post by **Magic Man** » 13 Sep 2007, 13:37

I think it is driver/display properties related rather than the card unable to do both correctly since, as said, it's advertised as twin dual link outputs and I've read a post elsewhere with a user doing the exact same setup as mine, i.e. 3840x1024 on one and 1920x1200 on the other.

The nVidia settings panel seems to sometime interfere in a way with the normal Windows display properties in that after updating the nVidia drivers right clicking on the desktop and selecting properties can result in quite a delay before the normal dialog appears - a couple of times or so going through it and usually after a reboot and the dialog appears instantly as normal almost as if the settings from the nVidia settings applet and the display properties dialog are conflicting in a way.

Anyway, I'll continue to try... Any other ideas welcome!

MatroxRulez · Post by **MatroxRulez** » 13 Sep 2007, 14:07

Have you tried 16-bit colors?

Magic Man · Post by **Magic Man** » 13 Sep 2007, 20:20

Makes no difference.

Anyone? Card should handle this so why isn't it allowing both at their max?

Post by **Paddy the Wak** » 13 Sep 2007, 20:25

@ wphan
Your avatar is breaking the rules ... it's file size is too large.
Please read the profile page and change it accordingly ... thank you ... 8)

Magic Man · Post by **Magic Man** » 13 Sep 2007, 22:16

Just to correct again, when the 2407 is at 1920x1200 the max I can get on the TH2Go is 3072x768

Matrox suggest trying one output (i.e. either the 2407 or the TH2Go) via analogue VGA rather than DVI but, according to the specs of the 8800 (i.e. twin dual link dvi supporting 2560x1600) I shouldn't have to.

Don't want to pull things back around at the moment but will give it a go if I must...

Magic Man · Post by **Magic Man** » 13 Sep 2007, 22:41

Definately something screwy going on between nVidia control panel and the XP display settings dialog.

I've now reduced the 2407 down to 1600x1200 and can set the TH2Go at full 3840x1024

If I then go into the nVidia control panel and add a custom resolution to the 2407 of 1920x1200 (since the slider maxes out before this) and test that it runs fine, i.e. both at maximum res. However, if I okay that before the timer runs out it doesn't stick and goes back to 1600x1200.

However, if I then look at the settings in nVidia control panel again it says that the TH2Go is now maxed out at 3072x768 even though I know from the monitors that they are still at 1280x1024 (i.e. the TH2Go is at max 3840x1024)

If I then set the 2407 back to 1920x1200 from within the nVidia control panel it does but also knocks the TH2Go back down.

If I go back into the nVidia control panel and set a custom resolution of 3840x1024 for the TH2Go and test it, again, fine, both outputs running at their maximum but only while the test countdown hasn't timed out. If I click OK to keep the settings then it blanks and goes back to 3072x768

When I go back to XP display properties, the 2407 is saying it's set at 640x480 even though it's still running at 1920x1200 and the reverse happens if I set the other at the maximum...

Arghhhhh...

Magic Man · Post by **Magic Man** » 13 Sep 2007, 22:54

Okay, now after running through various combinations of nVidia control panel settings which, when you then go back to display properties come up with something different, I was left with the TH2Go at 3840x1024 and the 2407 showing as 640x480 even though it was still at 1600x1200.

However, now on the display properties slider it went up to the max of 1920x1200. Set this and okayed it expecting the TH2Go to jump back down but it has now also stayed so both currently are working as they should but I'm wondering what will happen when I reboot...!

So, proved that there is no reason why both can't run at their max resolutions the problem just seems to be a combination of the settings made by nVidias control panel and XP'x display properties app - it seems as if one overwrites and conflicts with the other with the result that it ends up not giving you the correct set of resolution options across the two outputs.

Only by luck have I managed to get to a point where the XP display properties dialog has allowed me to set and keep both maximum resolutions.

Strange though and I dare say something that may come back next time. Would be nice to know if there is some sort of workaround or fix...

Magic Man · Post by **Magic Man** » 13 Sep 2007, 22:58

Just noticed, my 2407 is showing 60Hz as expected by the three 1965s are showing 59Hz.

Did play around with lower refresh rates on the custom screen resolutions tab of the nVidia control panel so perhaps this has now set through and the slightly reduced bandwidth is enough to keep all happy...?

Post by **Paddy the Wak** » 14 Sep 2007, 00:03

Magic Man ... quadruple posting !!!

Please just edit your previous post ... 8)

Magic Man · Post by **Magic Man** » 14 Sep 2007, 00:15

Sorry, was getting carried away with the investigation... :D

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