I installed Fedora 25 with the MATE desktop on my Thinkpad Carbon X1
(4th gen). When I lock the desktop or the screensaver kicks in, the
display doesn't actually blank. Instead, it stays showing the last
thing. If I lock the screen or just wait for the screensaver to kick
in, it stays on the desktop. If I hit a key, it jumps to the screen
unlock display; if I then cancel unlocking, the lock screen stays on the
display.
If I had to guess, it is like the display is failing to switch off.
There are no errors logged anywhere that I can see.
Fedora 23/MATE worked fine, so this is new behavior.
This is with a Intel HD Graphics 520 display (if that matters).
--
Chris Adams <linux(a)cmadams.net>
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