From: Adrian Goldman
Date: 22 September 2011 10:58
Hi,
Anybody having problems with Zalmans and the newer macs? We can't get the MACS to even _recognise_ the existence of the Zalman display using a minidisplay port ->DVI adapter and also using Thunderbolt out on a new iMAC (minidisplay port) --> DVI adapter. This is a real problem if one wants to do stereo on MACS...
thanks for comment and advice...
Adrian Goldman
----------
From: Sabuj Pattanayek
I don't recall but the Zalman also has a VGA port right? Have you
tried minidisplay port to VGA? Have you tried your zalman with PC or
older mac hardware just to make sure it works?
----------
From: Joachim Reichelt
I got the same trouble and got it fixed:
Contact Zalman e.g. at jhjo@zalman.co.kr
I got this answer:
Dear Joachim,
I apologize for the delay in responding to your inquiry. I was away on
multiple business trips abroad, and was terribly occupied.
I can provide the fix – a custom DVI cable specifically for the
ZM-M220W. It resolves the issue of the swapped pins 15 &16 of the
ZM-M220W, which is not an issue with older graphic cards/GPUs(I infact
use the DVI connection with my office PC that has an Nvidia GeForce 7600
card), but is an issue with newer / notebook GPUs.
Basically, newer GPUs seem to have acquired a function that actively
sends and receives a signal to and from the monitor to check if a
connection is made, and if it does not get a return signal that it is
looking for, the GPU's output shuts down. With the ZM-M220W's swapped
pins 15 & 16, the newer GPUs don't get the return signal and thinks that
no monitor is connected and shuts the output off. On older GPUs, this
function is not common and so the GPU outputs constantly without
regarding for the pins 15 & 16.
Okay, so please fill out the following FedEx Air Waybill template and
send it to me, and I will have this custom DVI cable sent to you.
Recipient's Name:
Phone: +
Company:
Address:
Address:
City:
State/Province:
Country:
ZIP/Postal Code:
Am 22.09.11 11:58, schrieb Adrian Goldman:
Joachim Reichelt
Helmholtz-Zentrum für Infektionsforschung GmbH | Inhoffenstraße 7 | 38124 Braunschweig | www.helmholtz-hzi.de
Vorsitzende des Aufsichtsrates: MinDir'in Bärbel Brumme-Bothe, Bundesministerium für Bildung und Forschung
Stellvertreter: MinDirig Heiko Gevers, Niedersächsisches Ministerium für Wissenschaft und Kultur
Geschäftsführung: Prof. Dr. Dirk Heinz; Ulf Richter, MBA
Gesellschaft mit beschränkter Haftung (GmbH)
Sitz der Gesellschaft: Braunschweig
Handelsregister: Amtsgericht Braunschweig, HRB 477
----------
From: Sabuj Pattanayek
Is yours a ZM-M220W which looks like is known to have pins 15 & 16
switched or the newer 24" ZM-M240W?
----------
From: Sabuj Pattanayek
Hi all,
Looks like our ZM-M240W came in a few days ago and the researcher has
been using it fine with a standard minidisplay port to DVI adapter off
his newer imac. Zalman must have fixed the issue with pins 15 & 16
being switched. Unfortunately he got used to using the 3d vision setup
in our graphics lab and doesn't like the quality on the zalman as much
(as expected).
HTH,
Sabuj
----------
From: Adrian Goldman
Thanks to sabuj and all who replied. We do indeed have the older monitors and clearly we will have to contact zalman for a miswired DVi adapter!
Adrian
Sent from my iPhone
----------
From: Sabuj Pattanayek
Hi all,
I emailed the guy at Zalman to let him know that the newer ZM-M240W
works out of the box with minidisplay/thunderbolt port cards. He let
me know that he no longer works at Zalman (not sure why his email
addr. still works) but that if anyone needs the re-wired DVI cable for
the ZM-M220W that you should :
####
"... you should call Zalman USA and request a 'custom DVI cable for the
ZM-M220W'.
http://zalman.com/eng/WTB/usa.asp
Don't email to the 'support' email address, for the person that receives
the emails is a thermal engineer proper in HQ, helping Zalman USA, but he is
not familiar with 3D display related matters."
Thank you,
Jihoon Jo
####
HTH,
Sabuj
----------
From: Olve Peersen
I've been having the same issues and appreciate the update in this thread about pins 15/16 being swapped - likely explains why the DVI port seems "dead" when connecting to a new Mac but works fine on older systems.
On the VGA side, I did get the MZ-M220W to work correctly with a DisplayPort-->VGA adapter, but to get the native 1680 x 1050 resolution needed for the stereo to work I had to patch the system with the utility "SwitchResX" (http://www.madrau.com/indexSRX4.html). It basically lets you supplement the OSX equivalent of modeline and thus define new monitor resolutions. The exact settings I used are in the lab at the moment, but I'll do my best to remember to post them tomorrow. It was not as straightforward as I had thought, but then again I did not bother to read the manual before playing with it and still solved the problem in about ten minutes.
Olve
----------
From: Olve Peersen
Here are the SwitchResX settings for the ZM-M220W that I alluded to in last night's reply - these get it work via a Thunderbolt port using a DisplayPort to VGA adapter cable on a new 27" iMac. I'm not sure if all these settings need to be entered and even after entering the frequency specs the software could not quite figure out the 1680x1050 resolution right. I thus configured it as a Custom Resolution and got it to work.
Display Information Panel: (gleaned from manual)
V. freq 56 - 75 Hz
H. freq 31.50 - 80.00 kHz
Pixel Clock 28.32 - 135 MHz
Default Resolution 1680 x 1050 @ 60 Hz
Current Resolutions Panel:
Set to 1680 x 1050, 60 Hz (likely only available after setting custom resolution in next panel)
Custom Resolutions:
Created a new one by clicking "+" button
Check the "Use simplified settings" button and selected CVT-RB from popup menu
Set Active area as 1680 and 1050
Set Scan rate Vertical to 56.632 Hz
Selected Positive sync for Horizontal only.
Then saved and rebooted. Finally, it looks like you have to set the resolution in the Displays panel for each use of the system (I use the Displays Menu bar icon). And SwitchResX will set you back 14 € (~$18) after a ten day demo period.
Cheers,
Olve
======================
Final (auto-calculated) result was the following:
Pixel Clock 118.75 MHz
{Parameter Horiz Vert}
Active 1680 1050
Front Porch 48 3
Sync width 32 6
Back porch 80 21
Blanking 160 30 (not editable)
Total 1840 1080 (not editable)
Scan Rate 64.538 kHz 59.757 Hz
Selected Positive sync for Horizontal only
Final config became "1680 x 1050, 56.76 Hz"
Date: 22 September 2011 10:58
Hi,
Anybody having problems with Zalmans and the newer macs? We can't get the MACS to even _recognise_ the existence of the Zalman display using a minidisplay port ->DVI adapter and also using Thunderbolt out on a new iMAC (minidisplay port) --> DVI adapter. This is a real problem if one wants to do stereo on MACS...
thanks for comment and advice...
Adrian Goldman
----------
From: Sabuj Pattanayek
I don't recall but the Zalman also has a VGA port right? Have you
tried minidisplay port to VGA? Have you tried your zalman with PC or
older mac hardware just to make sure it works?
----------
From: Joachim Reichelt
I got the same trouble and got it fixed:
Contact Zalman e.g. at jhjo@zalman.co.kr
I got this answer:
Dear Joachim,
I apologize for the delay in responding to your inquiry. I was away on
multiple business trips abroad, and was terribly occupied.
I can provide the fix – a custom DVI cable specifically for the
ZM-M220W. It resolves the issue of the swapped pins 15 &16 of the
ZM-M220W, which is not an issue with older graphic cards/GPUs(I infact
use the DVI connection with my office PC that has an Nvidia GeForce 7600
card), but is an issue with newer / notebook GPUs.
Basically, newer GPUs seem to have acquired a function that actively
sends and receives a signal to and from the monitor to check if a
connection is made, and if it does not get a return signal that it is
looking for, the GPU's output shuts down. With the ZM-M220W's swapped
pins 15 & 16, the newer GPUs don't get the return signal and thinks that
no monitor is connected and shuts the output off. On older GPUs, this
function is not common and so the GPU outputs constantly without
regarding for the pins 15 & 16.
Okay, so please fill out the following FedEx Air Waybill template and
send it to me, and I will have this custom DVI cable sent to you.
Recipient's Name:
Phone: +
Company:
Address:
Address:
City:
State/Province:
Country:
ZIP/Postal Code:
Am 22.09.11 11:58, schrieb Adrian Goldman:
--
Joachim Reichelt
Helmholtz-Zentrum für Infektionsforschung GmbH | Inhoffenstraße 7 | 38124 Braunschweig | www.helmholtz-hzi.de
Vorsitzende des Aufsichtsrates: MinDir'in Bärbel Brumme-Bothe, Bundesministerium für Bildung und Forschung
Stellvertreter: MinDirig Heiko Gevers, Niedersächsisches Ministerium für Wissenschaft und Kultur
Geschäftsführung: Prof. Dr. Dirk Heinz; Ulf Richter, MBA
Gesellschaft mit beschränkter Haftung (GmbH)
Sitz der Gesellschaft: Braunschweig
Handelsregister: Amtsgericht Braunschweig, HRB 477
----------
From: Sabuj Pattanayek
Is yours a ZM-M220W which looks like is known to have pins 15 & 16
switched or the newer 24" ZM-M240W?
----------
From: Sabuj Pattanayek
Hi all,
Looks like our ZM-M240W came in a few days ago and the researcher has
been using it fine with a standard minidisplay port to DVI adapter off
his newer imac. Zalman must have fixed the issue with pins 15 & 16
being switched. Unfortunately he got used to using the 3d vision setup
in our graphics lab and doesn't like the quality on the zalman as much
(as expected).
HTH,
Sabuj
----------
From: Adrian Goldman
Thanks to sabuj and all who replied. We do indeed have the older monitors and clearly we will have to contact zalman for a miswired DVi adapter!
Adrian
Sent from my iPhone
----------
From: Sabuj Pattanayek
Hi all,
I emailed the guy at Zalman to let him know that the newer ZM-M240W
works out of the box with minidisplay/thunderbolt port cards. He let
me know that he no longer works at Zalman (not sure why his email
addr. still works) but that if anyone needs the re-wired DVI cable for
the ZM-M220W that you should :
####
"... you should call Zalman USA and request a 'custom DVI cable for the
ZM-M220W'.
http://zalman.com/eng/WTB/usa.asp
Don't email to the 'support' email address, for the person that receives
the emails is a thermal engineer proper in HQ, helping Zalman USA, but he is
not familiar with 3D display related matters."
Thank you,
Jihoon Jo
####
HTH,
Sabuj
----------
From: Olve Peersen
I've been having the same issues and appreciate the update in this thread about pins 15/16 being swapped - likely explains why the DVI port seems "dead" when connecting to a new Mac but works fine on older systems.
On the VGA side, I did get the MZ-M220W to work correctly with a DisplayPort-->VGA adapter, but to get the native 1680 x 1050 resolution needed for the stereo to work I had to patch the system with the utility "SwitchResX" (http://www.madrau.com/indexSRX4.html). It basically lets you supplement the OSX equivalent of modeline and thus define new monitor resolutions. The exact settings I used are in the lab at the moment, but I'll do my best to remember to post them tomorrow. It was not as straightforward as I had thought, but then again I did not bother to read the manual before playing with it and still solved the problem in about ten minutes.
Olve
----------
From: Olve Peersen
Here are the SwitchResX settings for the ZM-M220W that I alluded to in last night's reply - these get it work via a Thunderbolt port using a DisplayPort to VGA adapter cable on a new 27" iMac. I'm not sure if all these settings need to be entered and even after entering the frequency specs the software could not quite figure out the 1680x1050 resolution right. I thus configured it as a Custom Resolution and got it to work.
Display Information Panel: (gleaned from manual)
V. freq 56 - 75 Hz
H. freq 31.50 - 80.00 kHz
Pixel Clock 28.32 - 135 MHz
Default Resolution 1680 x 1050 @ 60 Hz
Current Resolutions Panel:
Set to 1680 x 1050, 60 Hz (likely only available after setting custom resolution in next panel)
Custom Resolutions:
Created a new one by clicking "+" button
Check the "Use simplified settings" button and selected CVT-RB from popup menu
Set Active area as 1680 and 1050
Set Scan rate Vertical to 56.632 Hz
Selected Positive sync for Horizontal only.
Then saved and rebooted. Finally, it looks like you have to set the resolution in the Displays panel for each use of the system (I use the Displays Menu bar icon). And SwitchResX will set you back 14 € (~$18) after a ten day demo period.
Cheers,
Olve
======================
Final (auto-calculated) result was the following:
Pixel Clock 118.75 MHz
{Parameter Horiz Vert}
Active 1680 1050
Front Porch 48 3
Sync width 32 6
Back porch 80 21
Blanking 160 30 (not editable)
Total 1840 1080 (not editable)
Scan Rate 64.538 kHz 59.757 Hz
Selected Positive sync for Horizontal only
Final config became "1680 x 1050, 56.76 Hz"
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