Display settings lost after KVM switching, Precise

[Mark Ellse]

Precise autodetects monitor just before dimming the screen at the start of engaging the screensaver. If the Precise machine is connected to a KVM switch, Precise autoconfigures to low-resolution monitor when the KVM has connected the monitor to a different machine. Switching back to the Precise machine after a while leaves you with this low resolution display. To return to the high-res display you need to open the display settings or wait until the screensaver activates. Neither of these is practical.
Two suggestions:
1) Make the autodetection take place on waking from screensaver, instead or as well as before. This would solve the problem in most situations.
AND/OR 2) Make it possible to disable monitor autodetect on waking and sleeping, merely do the autodetecting on logging in or opening display dialogue.
Behaviour was not evident with Lucid. It was the same for two different brands of KVM.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

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[Mark Ellse (markellse)]

Workaround:

Open terminal

gsettings set org.gnome.desktop.screensaver lock-enabled false [Enter]

gsettings set org.gnome.desktop.screensaver idle-activation-enabled false [Enter]

This disables screensaver but does not affect the screen turning off.

[Mark Ellse (markellse)]

(It is on activation of the screensaver that the display is detected and the problems arrive, not on powering off the screen)

[Bryan Quigley (bryanquigley)]

 Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1037895, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.