I uninstalled fglrx drivers and install the kernel upstream 3.6 # uname -a Linux tipingouin-home 3.6.0-030600rc7-generic #201209232235 SMP Mon Sep 24 02:36:02 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
# xrandr Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 16384 x 16384 DisplayPort-0 disconnected (normal left inverted right x axis y axis) DisplayPort-1 disconnected (normal left inverted right x axis y axis) HDMI-0 disconnected (normal left inverted right x axis y axis) DVI-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 433mm x 271mm 1680x1050 60.0*+ 1680x945 60.0 1400x1050 59.9 1600x900 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1366x768 60.0 1360x768 60.0 1280x800 74.9 59.9 1152x864 75.0 1280x768 74.9 60.0 1024x768 75.1 70.1 60.0 1024x576 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 848x480 60.0 640x480 72.8 75.0 66.7 60.0 720x400 70.1 it works! ** Attachment added: "plymouth-debug.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1056468/+attachment/3353454/+files/plymouth-debug.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1056468 Title: monitor inactive during plymouth animation (radeon, fallback to /dev/fb0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1056468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs