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You could compare the frame rate, but an analog signal cant be compared to |
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a digital signal ^^ |
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if you resolute your analog voltage in 8 bit (256 steps each subpixel, so |
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24bit color depth) you get some offset on the transmission |
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so you could not use an analog interface in order to transmit data (there |
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would only trash arrive)! |
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and there is no error correction either. |
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next thing is that the usb interface is not between the screen and the |
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graphics card but between the mainboard and the graphics card |
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there is no video transmission at this place! |
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it would be more sensible to compare usb to pci-e or agp. |
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2012/7/17 <frares@×××××.com> |
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> Em , Kilian Zott <kilian@××××××××.de> escreveu: |
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> > thats a strange comparison since usb is a serial busvga is not even |
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> digital, so how can you talk about throughput? lol |
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> |
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> > |
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> > |
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> > 2012/7/16 Michael Mol mikemol@×××××.com> |
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> > |
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> > On Sun, Jul 15, 2012 at 6:54 PM, Sebastian Pipping sping@g.o> |
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> wrote: |
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> > |
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> > > Hi there, |
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> > > |
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> > > |
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> > > On 02/15/2012 09:14 PM, gk wrote: |
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> > >> Hallo |
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> > >> I used one some time ago, and it worked but very slow. |
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> > >> The label only says made in China. |
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> > >> lsusb output is: |
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> > >> Bus 001 Device 004: ID 0711:0900 Magic Control Technology Corp. SVGA |
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> Adapter |
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> > >> The Kernel module which is loaded is: |
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> > >> sisusbvga |
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> > >> If your interested in the dongle and you live somewhere around |
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> Germany, I can |
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> > >> send it to you, because I don't need it anymore. |
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> > > |
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> > > I'm afraid if it's slow I do not have much real use for it. Many |
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> thanks |
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> > > for the offer, though! And sorry for the ages that it took to reply. |
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> > > |
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> |
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> > |
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> > Unfortunately, you're probably not going to find anything for USB |
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> > which _isn't_ slow. USB is a very slow bus when compared to HDMI, DVI |
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> > or VGA. |
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> > |
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> > -- |
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> > |
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> > :wq |
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> > |
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> > |
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> > |
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> |
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> Well, thinkig a bit, even on a non digital interface, as you have those |
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> vertical and horizontal frequencies for each video mode, I guess one can |
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> talk like "pixels per second" using some math on those numbers. |
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> |
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> Francisco |
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