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Old 09-12-2013, 06:17 PM   #1
marcussr
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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
 
Old 09-15-2013, 04:57 PM   #2
joe_2000
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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
The output should give you the names of the available displays. For example on my laptop it says
Code:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1920x1080      59.9*+   39.9  
   1680x1050      60.0     59.9  
   1600x1024      60.2  
   1400x1050      60.0  
   1280x1024      60.0  
   1440x900       59.9  
   1280x960       60.0  
   1360x768       59.8     60.0  
   1152x864       60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9
Here the display name is LVDS1

To enable a display run
Code:
xrandr  --output <name of display> --auto
To enable two displays in parallel run e.g.
Code:
xrandr  --output <name of display> --auto --output <name of 2nd display> --auto  --left-of <1st display>
Have a look at the xrandr manual, it gives lots of examples.
 
1 members found this post helpful.
Old 09-15-2013, 07:45 PM   #3
marcussr
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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.
 
Old 09-16-2013, 02:21 PM   #4
joe_2000
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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.
 
Old 09-16-2013, 07:54 PM   #5
marcussr
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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:
Originally Posted by joe_2000 View Post
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.
 
Old 09-17-2013, 07:18 AM   #6
joe_2000
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Hmm, ok. Others seem to have the same problem

Sorry, running out of ideas.
 
Old 09-17-2013, 07:30 AM   #7
cascade9
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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.....
 
Old 09-17-2013, 07:49 AM   #8
marcussr
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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.
 
Old 09-17-2013, 05:01 PM   #9
sniff
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Quote:
Originally Posted by marcussr View Post
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.
Don't get an additional one, that will just lead to issues further down the line. Just replace what is there. Or if it is an on-board adapter then deactivate that and use the additional card on its own. The majority of modern cards will run 2+ monitors but it is worth checking before you buy.
 
Old 09-18-2013, 05:50 AM   #10
cascade9
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Quote:
Originally Posted by sniff View Post
Or if it is an on-board adapter then deactivate that and use the additional card on its own. The majority of modern cards will run 2+ monitors but it is worth checking before you buy.
As far as I can tell emachines e1352g-41w is using the onboard nVidia 6150 video. I really hate emachines sometimes, with some models its not easy to figure out the hardware specs (or even if the machine has a PCIe x16 slot).

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.
 
Old 09-18-2013, 02:03 PM   #11
marcussr
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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.
 
Old 09-18-2013, 11:36 PM   #12
marcussr
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So to confirm, it is an on board card and an additional would be half height.
 
Old 09-19-2013, 03:43 AM   #13
sniff
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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.
 
Old 09-19-2013, 06:42 AM   #14
cascade9
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Quote:
Originally Posted by marcussr View Post
So to confirm, it is an on board card and an additional would be half height.
Do you have a PCIe x16 slot, or do you only have a PCI slot?

BTW, listing your location might be a good idea if yuo want someone to help you find a decent supported card.

Quote:
Originally Posted by sniff View Post
You might want to look at the Nvidia Quadro range as they are more likely to be available in the half height form factor.
Not in my expereince.

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.
 
Old 09-19-2013, 06:56 AM   #15
sniff
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Quote:
Originally Posted by cascade9 View Post
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.
Hence the last line of my post that you seem to have missed... we have a room full of mini-pcs with NVS cards in, they work very well and don't have fans which is useful in our setting.

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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