That version is now dead
http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml
** Changed in: xorg (Ubuntu)
Status: New => Invalid
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The blanking started on Friday. I've had the install for 8 days, so it's
not a DRM problem.
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https://bugs.launchpad.net/bugs/1718575
Title:
Screen blanks in less than 15 seconds
To man
Dmesg shows a drm problem (probably related to your dell hardware model
(dig around on the net)):
Call Trace:
[ 13.380327] dump_stack+0x63/0x81
[ 13.380330] __warn+0xcb/0xf0
[ 13.380333] warn_slowpath_fmt+0x5f/0x80
[ 13.380338] ? finish_wait+0x56/0x70
[ 13.380356] drm_wait_one_vblan