Hi John, why not try something newer than CentOS 6.8 ? Maybe not the latest 8.1 but 7.7 is quite recent and stable. Your (integrated) video card is : Intel® HD Graphics 605 (NUC7PJYH) Intel NUC7PJYH seems to be able to pilot Dual 4K display : " ...The NUC7PJYH kit also comes with dual Ultra HD 4K display support via two full-sized HDMI* ports, consumer infrared, and a TOSLINK audio jack, they’ve got everything they need to stream media, play, or finish that last-minute presentation. And with 3.2x better graphics,3 2 you can create robust entry-level digital signage at entry-level prices for your SMB customers." [ https://www.intel.it/content/www/it/it/products/docs/boards-kits/nuc/nuc7cjyh-nuc7pjyh-nuc7cjys-brief.html ] First step is to post here the output of "hwinfo --gfxcard" Some useful info is published here (sorry not CentOS related) https://wiki.archlinux.org/index.php/Hardware_video_acceleration#Intel Cheers Fleur Il giorno sab 18 gen 2020 alle ore 01:07 John Pierce <jhn.pierce at gmail.com> ha scritto: > > On Fri, Jan 17, 2020 at 8:53 AM Mark (Netbook) <mrw at mwcltd.co.uk> wrote: > > > I have an Intel NUC7PJYH running CentOS 6.8. This is a NUC with standard > > USB, 1GbE and 2*HDMI. > > > FWIW, that has a Pentium Silver J2005, which has Intel® UHD Graphics 605 > > thats fairly new stuff, and centos 6 is pretty old now. > > -- > -john r pierce > recycling used bits in santa cruz > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos