Making progress - although in a curve :) To try and problemsolve I connected a Raspberry Pi to the problematic monitor - intiially it had the same issue (black screen after boot) and here I managed to solve it by forcing hdmi_group=2 and hdmi_mode=27 in config.txt... ( https://www.raspberrypi.org/documentation/configuration/config-txt/video.md) So it clearly seems to be that the monitor demands a non-standard resolution (1280x800 @60Hz) and the system does not seem to jump to it automatically.
Back to the BeageBone though, I feel a bit lost: the file structure is different and there doesn't seem to be a config.txt that forces common environment variables? Is there any equivalent, or a way to force the resolution on HDMI to be 1280x800? Thanks! Pierre On Tuesday, 5 May 2020 12:46:20 UTC+5:30, Pierre Ingels wrote: > > Thanks Jeff for the tip! I just installed lxde and ensured that it is > enabled but am getting the same black screen with cursor visible. > > I'll have to look probably more in the configs as there seems to be > something inhibiting the drawing of the interface. > > Pierre > > On Monday, 4 May 2020 21:38:20 UTC+5:30, Jeff Pollard wrote: >> >> Hi, >> >> Some versions of MachineKit do not come with the desktop environment >> installed. I'm not sure if that is the problem you are encountering, but I >> had a similar problem before. I installed lxde as a desktop (remotely) >> then rebooted, and I got a desktop display after logging in. >> >> Jeff >> >> >> On Sunday, May 3, 2020 at 5:07:38 AM UTC-7, Pierre Ingels wrote: >>> >>> Hello all, >>> >>> I am attempting to set up a controller for my CNC lathe using the >>> BeagleBone Black and Machinekit. I have set it up pretty well using remote >>> terminal and I am now completing the system with a touchscreen (an Elecrow >>> RR101 10.1 Inch 1280x800). >>> >>> It seems to work just fine and displaying the login graphical interface >>> at 1280x800, but as soon as I login the mouse cursor remains but the screen >>> is all dark. I have poked around with Xrandr thinking that it is the >>> resolution but I get this message: >>> xrandr: Failed to get size of gamma for output default >>> Screen 0: minimum 1280 x 800, current 1280 x 800, maximum 1280 x 800 >>> default connected 1280x800+0+0 0mm x 0mm >>> 1280x800 0.00* >>> >>> >>> I assume that I have to define the screen - any pointers how to do this >>> and find the relevant parameters? Or obviously if I need to look in a very >>> different direction :) >>> >>> Thank you! >>> Pierre >>> >> -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/machinekit/1c8e340e-3f0a-415c-8f33-2d1c1b30b82b%40googlegroups.com.
