On 03/14/2012 08:11 AM, Robert David wrote: > V Mon, 12 Mar 2012 17:24:47 -0500 > Michael Sullivan <msulli1...@gmail.com> napsáno: > >> I feel really stupid asking this, but I want to use an HDMI component >> to output one of my PCs to the TV set. I've followed all of the wiki >> entry at http://wiki.gentoo.org/wiki/DisplayLink, but there's >> something else I need to know. I get the green screen on the TV that >> it mentions when the kernel module is being loaded correctly. The >> problem is that I use gdm in /etc/conf.d/xdm DISPLAYMANAGER variable >> to start X, and I don't know where the actual gdm configuration lives >> so I can tell it to use ~/.xinitrc2 from the wiki. My google >> searching hasn't been going well. Can anybody give me any hints as to >> how to make progress on this problem? >> > Hi Michael, > > it depends on how you would like to use the external card. Please > specify your scenario.
So my laptop has a built-in display and a VGA output. While working, I use both. In fact, here's the content of the script I run when logging in to arrange things the way I like them: #!/bin/sh xrandr --output LVDS1 --auto xrandr --output VGA1 --off # Force a full reset of VGA1 xrandr --output VGA1 --left-of LVDS1 --auto Let's say I were able to set up the DisplayLink adapter using "xrandr --output FBUSB1 --auto". The effect I'm looking for could then be achieved via: #!/bin/sh xrandr --output LVDS1 --auto xrandr --output VGA1 --off xrandr --output VGA1 --left-of LVDS1 --auto xrandr --output FBUSB1 --off xrandr --output FBUSB1 --left-of VGA1 --auto In effect, I want all three displays arranged as part of the same extended desktop with xinerama. (xinerama is pretty explicitly part of my workflow, as one thing I often do is have 3-4 remote desktops active *per local display*, and I drag them around as necessary. > Anyway, try to look in /etc/gdm, /etc/init.d/xdm, /etc/X11 (there can > be specified which server start in file xdm/Xservers) > > I have DL adapter connected to my docking station and a simple script > to activate the second xserver on docking and deactivate that when > undocking. I simply run here second desktop using x2x. I just use that > primary for web browser, so I dont need xinerama. > > You can also use DL with your primary card and xinerama. But it needs > specific xorg.conf and needs to be connected when xserver starting. So > nothing suitable for notebook and hotplug. This latter scenario is what I'd be interested in. I'd have no complaints if I needed it plugged in when X started; that's fine, if a bit weird. (though it couldn't be done via xrandr? Seriously?) I don't do anything with hotplug, really. I don't use PulseAudio, I don't use GNOME, KDE or udev automount. About the only automagic thing I use is NetworkManager (and even that fails to notice when the laptop's moved five miles away from the AP it was connected to.).
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