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On 03/14/2012 08:11 AM, Robert David wrote: |
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> V Mon, 12 Mar 2012 17:24:47 -0500 |
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> Michael Sullivan <msulli1355@×××××.com> napsáno: |
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> |
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>> I feel really stupid asking this, but I want to use an HDMI component |
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>> to output one of my PCs to the TV set. I've followed all of the wiki |
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>> entry at http://wiki.gentoo.org/wiki/DisplayLink, but there's |
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>> something else I need to know. I get the green screen on the TV that |
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>> it mentions when the kernel module is being loaded correctly. The |
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>> problem is that I use gdm in /etc/conf.d/xdm DISPLAYMANAGER variable |
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>> to start X, and I don't know where the actual gdm configuration lives |
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>> so I can tell it to use ~/.xinitrc2 from the wiki. My google |
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>> searching hasn't been going well. Can anybody give me any hints as to |
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>> how to make progress on this problem? |
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>> |
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> Hi Michael, |
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> |
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> it depends on how you would like to use the external card. Please |
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> specify your scenario. |
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So my laptop has a built-in display and a VGA output. While working, I |
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use both. In fact, here's the content of the script I run when logging |
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in to arrange things the way I like them: |
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|
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#!/bin/sh |
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xrandr --output LVDS1 --auto |
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xrandr --output VGA1 --off # Force a full reset of VGA1 |
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xrandr --output VGA1 --left-of LVDS1 --auto |
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Let's say I were able to set up the DisplayLink adapter using "xrandr |
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--output FBUSB1 --auto". The effect I'm looking for could then be |
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achieved via: |
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|
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#!/bin/sh |
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xrandr --output LVDS1 --auto |
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xrandr --output VGA1 --off |
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xrandr --output VGA1 --left-of LVDS1 --auto |
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xrandr --output FBUSB1 --off |
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xrandr --output FBUSB1 --left-of VGA1 --auto |
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In effect, I want all three displays arranged as part of the same |
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extended desktop with xinerama. (xinerama is pretty explicitly part of |
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my workflow, as one thing I often do is have 3-4 remote desktops active |
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*per local display*, and I drag them around as necessary. |
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> Anyway, try to look in /etc/gdm, /etc/init.d/xdm, /etc/X11 (there can |
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> be specified which server start in file xdm/Xservers) |
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> |
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> I have DL adapter connected to my docking station and a simple script |
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> to activate the second xserver on docking and deactivate that when |
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> undocking. I simply run here second desktop using x2x. I just use that |
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> primary for web browser, so I dont need xinerama. |
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> |
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> You can also use DL with your primary card and xinerama. But it needs |
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> specific xorg.conf and needs to be connected when xserver starting. So |
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> nothing suitable for notebook and hotplug. |
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This latter scenario is what I'd be interested in. I'd have no |
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complaints if I needed it plugged in when X started; that's fine, if a |
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bit weird. (though it couldn't be done via xrandr? Seriously?) |
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I don't do anything with hotplug, really. I don't use PulseAudio, I |
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don't use GNOME, KDE or udev automount. About the only automagic thing I |
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use is NetworkManager (and even that fails to notice when the laptop's |
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moved five miles away from the AP it was connected to.). |
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