04-30-2019 09:25 PM
04-30-2019 10:18 PM
05-01-2019 10:32 AM
Thank you for replying, but we are in different worlds. I do not have a windows key or a "start".
You must be thinking of Mac or Windows. As I mentioned, I'm running the Devuan Ascii operating
The Fn-F7 key combination, which in theory turns on the external display, I assume has never much
worked with Linux. But in Devuan there's a straightforward way to select where to send video ouput.
This is the xrandr command. I know that the projector is connected via DP-2 because $ xrandr tells
me so and that DP-1 and HDMI-1 are disconncted.
I use xrandr to open the projector ($ xrandr -d DP-2), but it says "Can't open display DP-2". I can
use xrandr to make the attached DP-2 projector my primary display ($ xrandr --output DP-2 --primary).
I finally was able to send images to the projector, but it is still messed up in a peculiar way.
I'm running a graphics display that supports a slide show. This slide show displays the photos with an
index of images to the left that can be turned on or off. It is this index that is projected rather than
the photos, even if the photos are made full screen.
I suspect this has ceased to be a Thinkpad issue.
I know I need to check for bad cables. I found myself out of backup cables, and so ordered a
USB male-male cable to try. Not optimistic this is the problem.
05-01-2019 11:57 AM
05-01-2019 01:34 PM