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Graphics card: NVIDIA Quadro K620
Graphics driver: NVIDIA 2015-04-26 / 18.104.22.16807
The original graphics driver was from December 2014 so we tried updating to the version above, without any change.
OS: MS Windows 7 Pro
Hub: Multi Stream Transport (MST) Hub DisplayPort 1-2, CSV-5200 MST 1-2 DP Hub
1 x Dell UltraSharp U2412M (Hub->DP)
1 x Samsung SyncMaster 2443BW 24″ (Graphics card->DVI)
1 x Samsung SyncMaster 2443BW 24″ (Hub->DVI-adapter->DVI)
All set at 1920×1200 resolution.
DVI-Adapter: Dell-adapter provided with the computer – model number DANARBC084. The DP connector of this one has a “DP++” logo on it, if that’s interesting:
We also tried an older DP connector with same result: