Can't resume laptop from suspend when using external display

[Sam Uong]

I am using a Dell Inspiron M301Z, and I often have an external monitor connected to this laptop. When I suspend or hibernate the computer I am unable to resume - I just get a black screen. I am not able to reach the computer via ssh or even ping.

However when there is no external display plugged in, the laptop is able to wake up from suspend without problems.

Also, I have noticed that the proprietary driver (fglrx) does not have this problem (but it does have a different set of bugs, which makes it unusable on this laptop).

[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.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/927120/+editstatus and add the package name in the text box next to the word Package.

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