This Fedora bug https://bugzilla.redhat.com/show_bug.cgi?id=1307204 looks to me to be the same issue, and says that the cause is
'The problem is that xorg 1.17 or 1.18 replaced "HAS_DIRTYTRACKING2" with "HAS_DIRTYTRACKING_ROTATION" in pixmap.h and the old version of xf86-video-ati still looks for HAS_DIRTYTRACKING2. The newest version of xf86-video-ati looks for either: #if !defined(HAS_DIRTYTRACKING_ROTATION) && !defined(HAS_DIRTYTRACKING2)' and it appears to have patches for both ati and nouveau drivers. But I can't tell if that is a fedora-only patch or an upstream patch that can be brought to Ubuntu (or will eventually be brought in the normal course of version advances). Of course I am not an X expert so that fedora bug could be subtly different and thus not the same fix. ** Bug watch added: Red Hat Bugzilla #1307204 https://bugzilla.redhat.com/show_bug.cgi?id=1307204 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1597437 Title: X with nouveau driver, 2 nvidia cards, 4 monitors, does not use all monitors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1597437/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
