07-06-2011, 05:51 PM | #1 |
Junior Member
Join Date: Jul 2011
Posts: 1
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ubuntu 10.04 / Lilliput UM-70 as secondary screen
hello all,
i'm using ubuntu 10.04 and have a Lilliput UM-70 displaylink-based monitor. i've found a patchwork of guides explaining how to get it running without much luck. the best i can do is get it running as a primary monitor. the gdm login window and my main desktop will show up on it. the UM-70 is a tiny 7" screen so this config is unacceptable. i would like it to be a secondary screen next to my primary screen that i can drag stuff to, for example. i've read that i need to blacklist fbcon,bitblit,font,tileblit. frankly, i don't know what this blacklisting is supposed to do; it doesn't seem to make any difference either way. also, i would rather not have to add "vga=normal nomodeset" to the grub command line since it destroys the high resolution that i can use on the console on my main display. again, using this doesn't seem to make any difference. in fact, i've undone those changes and gotten the displaylink device to work fine as a primary screen using xorg.conf settings (i also still have the modification to gdm/Init/Default in the /etc directory). i guess this is commonly referred to as an extended desktop, which i what i'm interested in. below is my xorg.conf which will make both screens work fine and i can drag the mouse between them etc. however, it seems, since the displaylink device is set as 'Screen 0', that is where the gdm login window shows up and where my main desktop is. i thought it would be easy to fix that by just changing around the Screen definitions in the ServerLayout section, to something like this: Code:
Section "ServerLayout" Identifier "Server Layout" Screen 0 "Default Screen" 0 0 Screen 1 "DisplayLinkScreen" RightOf "Default Screen" Option "Xinerama" "Off" EndSection work OK there, it seems to disable the use of the displaylink device; no desktop shows up and i cannot move the mouse outside of my main LCD screen ('Default Screen') let's get a solid guide written to get the UM-70 acting as a secondary screen xorg.conf: Code:
Section "ServerLayout" Identifier "Server Layout" Screen 0 "DisplayLinkScreen" 0 0 Screen 1 "Default Screen" RightOf "DisplayLinkScreen" Option "Xinerama" "Off" EndSection Section "Device" Identifier "Configured Video Device" Driver "intel" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" EndSection Section "Device" Identifier "DisplayLinkDevice" driver "displaylink" Option "fbdev" "/dev/fb1" EndSection Section "Monitor" Identifier "DisplayLinkMonitor" EndSection Section "Screen" Identifier "DisplayLinkScreen" Device "DisplayLinkDevice" Monitor "DisplayLinkMonitor" DefaultDepth 16 SubSection "Display" Depth 16 Modes "800x480" EndSubSection EndSection |
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