I've read through the portions of Xorg that are directly related to the
screensaver timeouts (dixSaveScreens() and friends) and it appears that
my suspicion is incorrect. I was unable to find any sort of built-in
default screensaver. Another dead end.
Then I remembered that the kernel has a built-in screensaver. This
appears to be leading somewhere now. In 13.04, you can adjust the login
screen timeout by adjusting the terminal blank timeout. Log out of all
X sessions (in 13.04) and go to VT1 (Alt-Ctrl-F1). Then login and use
setterm to adjust the blank timeout to 1 minute.
$ setterm -blank 1
Now, switch back to VT7 (Alt-F7) and wait one minute. The display will
power off (in 13.04).
This doesn't work in 13.10. However, it does work for the other virtual
terminals in 13.10. So, it's as if the kernel's terminal blank feature
is somehow set up to have no effect on Virtual Terminal 7. Assuming I'm
on the right path, we should have an answer soon.
** No longer affects: xorg-server
** Also affects: linux
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1245474
Title:
[regression] on login screen, monitor stays on forever
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