Tristan Schmelcher, thank you for reporting this bug to Ubuntu. Quantal reached
EOL on May 16, 2014.
See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases
If this is reproducible in a supported release, please file a new
report.
** No longer affects:
This is a real usability issue. I have a Mac Pro running two Ubuntu VMs
and I never want them to activate screensavers/sleep mode/locked screen
--the Mac Pro has its own power-saving features. The 12.04 VM works
correctly, but the 12.10 has no easy option to stop the screen from
turning black.
I
Clean install will not change anything, because I installed ubuntu 12.10
(not upgraded), and still have this bug.
Seems to be a bug in Ubuntu (config).
To permanently correct this, add this line at the top of
/home/YOU/.profile :
xset s 0 0
The file should look just like this :
# ~/.profile:
I have this problem, have never heard of multi-head/multi-seat but the
problem arose a while after upgrading to 12.10. Most of this discussion
is way over my head, but I would very much like to resolve this issue
without having to clean-install again. Can somebody please publish step-
by step
I am using only lightdm and Unity. My lightdm.conf is attached above.
Also, in my case the screen does _not_ power down after 10 minutes, it
just displays black. i.e., the HDMI display connected to it shows that
it is still receiving a signal. By comparison, the Turn off screen when
inactive
I believe this is actually a duplicate of bug 1046118 but I thought that
required at least gdm to be running. Do you know for sure whether you
are using gdm or lightdm for your logon screen?
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Yes, I have the same problem after upgrading, I'm running dual monitors
from a Acer TravelMate 5530, one on the HDMI port and one on the VGA
port. I've tried both answers on http://askubuntu.com/questions/207131
/screensaver-blanking-problem/207240, neither of which work, the screen
still goes
also running xset s 0 0 fixed the problem for me as well, thanks.
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https://bugs.launchpad.net/bugs/1072531
Title:
[regression] X11 screen blanking after 10 minutes
** Bug watch added: freedesktop.org Bugzilla #57097
https://bugs.freedesktop.org/show_bug.cgi?id=57097
** Also affects: xorg-server via
https://bugs.freedesktop.org/show_bug.cgi?id=57097
Importance: Unknown
Status: Unknown
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I have now upgraded two other computers to 12.10 and neither of them
experience this issue ...
To the other people experiencing this bug: are you also using multi-head
/multi-seat? (If you've never heard those terms before, the answer is
probably no.)
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I think the default value of 10 minutes is coming from
DEFAULT_SCREEN_SAVER_TIME in include/site.h. I don't understand why it
only affects one of my computers though ...
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xorg-server (Ubuntu)
Status: New = Confirmed
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** Attachment added: xorg1.conf (for seat #1)
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1072531/+attachment/3416955/+files/xorg1.conf
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** Attachment added: xorg0.conf (for seat #0)
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1072531/+attachment/3416954/+files/xorg0.conf
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Workaround: add this to xorg.conf (in my case, to both of them):
Section ServerFlags
Option BlankTime 0
EndSection
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** Attachment added: lightdm.conf
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1072531/+attachment/3416979/+files/lightdm.conf
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