Black screen while connecting to Rock64 board Forums / NoMachine for ARM / Black screen while connecting to Rock64 board This topic contains 2 replies, has 3 voices, and was last updated by kroy 1 year, 4 months ago. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts April 13, 2018 at 09:15 #18163 pv-automationParticipant Hi, I’m trying to connect to Rock64 SBC from my Linux 64 bit Ubuntu desktop. After connection established I see NoMachine window as a black screen. I’m able to move mouse pointer on the Rock64, select and move windows etc. Just no video and black screen on the remote window. Please any advice what to check. PS: I have a good experience with NoMachine access to my Raspberry Pi2/3, Odroid XU4, Odroid-C2 and TinkerBoard. April 20, 2018 at 14:18 #18208 BritgirlKeymaster We’re waiting for the board so we can investigate this – it’s one that we’ve not yet added to the tested list 😉 June 5, 2018 at 16:06 #18582 kroyContributor Hi, Apologies for the late reply – we managed to get hold of the board and we carried out quite a few tests. We were able to reproduce the problem on Ubuntu, but it looks like it’s an issue on Xorg side. We were able also to find a workaround. You can stop LightDM service (sudo service lightdm stop), restart nxserver (sudo /usr/NX/bin/nxserver --restart) and then connect to the host. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) This topic was marked as solved, you can't post.