The problem was with radeonhd, I did not report it because I was working with xorg-edgers. I'll try with last updates. However, I attach the two logs.
** Attachment added: "Xorg.0.log using Monitor section" http://launchpadlibrarian.net/24125884/Xorg.0-monitor.log -- [RS600] Monitor "out of range" with Hansol H750 on radeon X1250 https://bugs.launchpad.net/bugs/340602 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
