Not optimum mode recommended mode 1400 x 900 60hz samsung syncmaster 940bw

SOURCE: Samsung SyncMaster 510N 15 not optimum mode

There is an issue with the microcontroller with 510N LCD monitors. Get it repaired at samsung service center.

SOURCE: No display Samsung SyncMaster 710N 17" LCD Monitor

same problem here...
here is a translated version of a webpage discussing the repair for this error...

http://72.14.235.104/translate_c?hl=en&sl=es&u=http://www.dtforum.net/index.php%3Ftopic%3D55304.msg1010695085%3Btopicseen&prev=/search%3Fq%3DNT68F63LG%2B50%2Bohm%26hl%3Den%26rlz%3D1T4SUNA_enUS219US220&usg=ALkJrhiRO8V09Lo7lnjqW47LE8IE653r7w

solder a 50 ohm resistor on pins 5 & 6 of Novatek NT68F63LG chip...
good if you can DIY, best if a qualified technician do it for you..

SOURCE: How do I change the setting on my Syncmaster

You could try pressing the auto adjust button (simply says 'Auto'), and see if that changes anything...don't know if this will work, but it is a start.

SOURCE: Samsung SyncMaster 912N Monitor Stops Working

Did you ever get this resolved? If so, how? I'm having exactly the same issue. Thanx.

SOURCE: SYNCMASTER BM SREEN WILL NOT ACTIVATE JUST A

I tried the following options and neither worked. 1) Hitting the monitor buttons as stated only got me a "digital" message and then the monitor went black as usual. Never got to any menu options. 2) Going into Safe Mode and changing the monitor settings or downloading/installing the correct driver didn't stick once you went back to the normal startup.

I didn't have another monitor handy to swap out so I had to be a little more creative. The only solution that worked for me is re-booting (F8 during startup) into the mode "Enable VGA Mode". This allowed me to go into the normal desktop with a screen resolution of 800x600. I went online, found the driver, downloaded it to the desktop. Deleted the video driver (Device Manager), installed the downloaded version, rebooted and....no problems.

I have Windows XP. Hope that helps. :)