Info to all those who want to use this monitor with a 3070 / 3080 / 3090: As you may have already noticed, this otherwise great monitor causes numerous problems with the above cards. - Second screen not possible (no picture) - G Sync problems (no picture) - Only 120Hz, instead of the full 240 (otherwise -> No picture) - Latest Nvidia driver not compatible (457.30) -... After a lot of research and conversations on Reddit and in the Samsung community, the solution looks like this: In most cases, the monitor is still delivered with software 1006.1 or 2. This only causes problems with the latest NVidia drivers (see above). After that came a software 1007.1, which, however, was about as bad. Now the latest firmware (1008.1) has been available for a few days, which has eliminated all problems. Now it works with the latest NVidia drivers, G Sync On, RGB FULL, 240Hz, 10 bit colours, second monitor, etc. So be sure to do this update! Unfortunately, this has not yet officially arrived in Europe (thanks for nothing, Samsung...), but here is the link to the Samsung Community, where I have also included the download link. In the meantime, Samsung has also confirmed the solution: https://eu.community.samsung.com/t5/notebooks-ssd-it/odyssey-g9-rtx-3090-schwarzer-bildschirm-bei-240hz/td-p/2244033 (Don't worry, the download starts in Korean, but works on all monitors, no matter if English / German, etc. is set as language).