vga to usb Dual Monitor
I am fairly new to linux but catching on quick, and most of the things I have trouble with I find the answers to here and other Linux forums. However I have not seen any resolutions to an issue that I am currently facing...I did not see it when I used the "Find Similar Thread, here is my question:
I was not quite sure where to post this, and could not find an existing thread that already answered my question. I have a desktop, emachine e1352g-41w amd 64 Running , Linux Mint 14 Nadia Kernel 3.8.13 I have a j5Create JUA210 Vga to usb adapter, it pulled the following with lsusb: Bus 001 Device 009: ID 0711:5200 Magic Control Technology Corp. I have ran, modprobe sisusbvga but the second monitor is not detected and stays idle. I am not sure what to do next in order to get this working |
I'm sure you are expecting a GUI way to do this, but just to see if it works you could try the following first: Run
Code:
xrandr Code:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 To enable a display run Code:
xrandr --output <name of display> --auto Code:
xrandr --output <name of display> --auto --output <name of 2nd display> --auto --left-of <1st display> |
I tried that command and this was my result:
Screen 0: minimum 8 x 8, current 1600 x 900, maximum 4096 x 4096 VGA-0 connected 1600x900+0+0 (normal left inverted right x axis y axis) 442mm x 249mm 1600x900 60.0*+ 1440x900 59.9 1280x1024 60.0 1024x768 60.0 800x600 60.3 640x480 59.9 I don't believe it recognized my second monitor at all, but this is good to know though. |
Hm, yes, your conclusion is probably right. (I am assuming your first display was also connected. If yes, then that's what you are seeing)
I am not familiar with the adapter you are using (or with any adapters like it), but it looks like a driver issue. Looking at their website it does not look as if they were providing Linux drivers. From what I could see after some googling I agree that sisusbvga is probably the thing to try, but I have never played with it myself. Sorry for stating the obvious, but I am assuming that when you modprobe it you don't get an error message / module not found message? As an way of narrowing down the issue have you successfully used the device on one of their supported platforms (windows / mac?) Just to rule out a hardware defect that might be worth trying... After that there seem to be some posts on the web from people who tried to get sisusbvga to work, it may be worth searching a bit with your favorite search engine. |
Yes my desktop is dual booted with Windows 7 and it works fine there. I also don't get any errors after modprobe.
LinuxMint-MLT ~ # modprobe sisusbvga LinuxMint-MLT ~ # dmesg [ 953.769019] usb 1-2: USB disconnect, device number 3 [ 970.885826] usb 1-2: new high-speed USB device number 9 using ehci-pci [ 971.020041] usb 1-2: New USB device found, idVendor=0711, idProduct=5200 [ 971.020046] usb 1-2: New USB device strings: Mfr=16, Product=32, SerialNumber=0 [ 971.020048] usb 1-2: Product: Trigger II External Graphics [ 971.020050] usb 1-2: Manufacturer: MCT Corp. Quote:
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http://www.comerma.net/usb2vga_en.html
It probably would have been cheaper, easier and better to get a video card for your system..... |
Thanks for the post...if this article does not resolve the issue...as I really just need a second display to read from, I don't really do anything that would need anything more than basic graphics. Anyway if this does not work, the adapter is not even 2 weeks old. I can take it back and swap for an additional video card.
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I believe it should have a PCIe x16 slot, but marcussr might need to open the case to check. Its probably also a 'half height' slot. Only some video cards are capable of 2+ monitors, lots of them arent. But 2 monitors is supported by almost all current video cards. |
When I get home...I will crack it open and take a look....I also followed the instructions @ the link location everything went fine but the dongle still did not activate the second monitor. Even after the xorg.conf update.
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So to confirm, it is an on board card and an additional would be half height.
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That does make your life a little more difficult. You might want to look at the Nvidia Quadro range as they are more likely to be available in the half height form factor. There are also some AMD/ATI cards if you don't mind doing the switch to the red team.
Actually I had a look at my fav store in the UK and there are a few GT 620s that are half height, probably a good place to start. Models from MSI, ASUS etc. |
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BTW, listing your location might be a good idea if yuo want someone to help you find a decent supported card. Quote:
Quadro cards are a bit of a rippoff anyway....for example, using newegg US prices you can get a quadro NVS 310 for $85..its using the same chipset as the G605/GT610/GT620. You can get a GT610 for $45. There will be no difference between the GT610 and a NVS 310 for desktop use. |
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Something else worth noting is that a friend of mine built a media PC using a half-height card and it required two slots in half-height mode as the additional ports where on a ribbon cable from the main circuit board. Thought I would mention it just in case, it would be annoying to purchase a new card only to find that you couldn't use more than one monitor due to lack of slots... :) |
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