Dual head suspend problem on Precise

Colin Law clanlaw at googlemail.com
Thu Mar 15 12:03:03 UTC 2012

On 13 March 2012 17:14, Colin Law <clanlaw at googlemail.com> wrote:
> Is anyone else using 12.04 alpha running into this bug [1], "After
> suspend / resume only one monitor of dual head usable"?

Apparently not, looks like I am on my own then :(
That is what comes from using a Beta version of course, it would be
nice to get it sorted prior to release.


> I have a
> Toshiba laptop (intel graphics) with an external monitor and after
> suspend/resume it often is only able to use the external monitor.  It
> runs on the external monitor as if it were the only one.  Even
> logout/in does not sort it and I have to reboot to recover.  Using
> System Settings > Displays the laptop monitor shows Off, but setting
> it On does not actually make it come on.  It worked ok on 11.10.
> Unplugging the external monitor switches to normal laptop screen, but
> plugging in the external monitor again just goes back to that one
> again.
> Any suggestions on what might be getting messed up that could cause a
> reboot to be required would be helpful.
> [1] https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/940350
> Colin


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