i have the same problem. multi monitors in linux has always been a reason i never went 100% linux in the house. i have the exact same issue described here. the external monitor drives a projector and that won't show the video, just black in that box. i have not tried a screen capture. i tried to reinstall and reconfigure xserver-xorg-video-ati as above but that did not help, possibly because i am not in 24 bit color mode but i don't know how to change that. one thread i tried indicated editing the xorg.conf file but that had no section in it for color depth. why isn't color depth just part of the screen resolution tool as one would expect?
speaking of the screen resolution tool: if i uncheck "clone displays" or whatever, it still only shows the one display. "detect" does nothing either, but when i try to change the resolution after unchecking clone, then suddenly it shows the other display as "unknown". i can change the resolution of that seperately and that actually widens my projector display (though it doesn't stretch the taskbar to fit). now i am from the windowsXP familiarity so i expect a button to "make primary", so that you could at least watch video on the external but not the internal. another question i have related to this is why does my Fn key to switch between int/ext/both do NOTHING? in windows you have to be set to "both" before it even sees the displays seperately, else if set to int it clones to the ext. what i want to do in ubuntu is just set it to EXT only because i have a hunch that would be a workaround to this bug but i can't even do that because of what appears to be another bug related to Fn keys. i tried using that xev tool to see if i just have a x keyboard congfig issue, but pressing Fn or Fn+ext display key does not indicate any activity is happening at all. AND, at no point after the booting-up screen is the S-video output detected or displaying anything. on boot up it shows a clone of the main screen, after that it is disabled and i can't find any info on activating this. i windows you used an ATI tool to switch between no more than TWO of: INT, EXT, S-Video in various combinations of cloning and multi-displays. anyway, this is the ONLY thing i do with this laptop: display movies to a projector from a network with the occassional browse of the net, so it seems like a real shame that i have to run windows to accomplish something that Macs could do 16 years ago. can someone resume this thread and help us start working through these issues until they are resolved? i would be happy to post any debug info or config info to help. i am running a compaq evo N610c, but i have seen that Fn keys and external/multi monitor issues are a common problem on many laptops. -- no video overlay on external monitor https://bugs.launchpad.net/bugs/155157 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