Further data point, but currently inexplicable, a similar issue haunted Fedora 12 on the same hardware, but not Windows 7, but now has disappeared on either Linux system after rearranging (i. e. replugging the DP cable), but never existed on Windows.
This may mean that signalling between what X.org does and what Windows configures might be subtly different -- so subtle it doesn't break DDC data or WIndows display, but big enough to make a difference to X.org- based display. -- [GM45] [upgrade] [regression] [lucid]: external monitor only usable via DVI, not via DP https://bugs.launchpad.net/bugs/557436 You received this bug notification because you are a member of Ubuntu-X, which is a direct subscriber. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp