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Thread: NEW Xenarc 705TSV Monitor

  1. #21
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    Well my ATI card does have the 800x480 option, and without PowerStrip I set it to that. The results are difficult to describe. From what I can see I ended up with the Xenarc stretching and squishing 800x480 pixels in the top half of a 1024x768 pixel layout, which was then scaled to the monitor's 800x480 resolution if you can imagine that (bottom half of the Xenarc's screen was blank). The monitor's OSD information said it was in 1024x768. I loaded PowerStrip, in the hopes of at least proving the monitor could show 800x480 dot-for-dot, but I wasn't able to get the settings right on it. I unchecked real-time adjustment as specified in Xenarc FAQ, but every time I changed one setting it would change others and I couldn't get them to match. Even so, my application won't be using the ATI, but the OQO so any of this doesn't matter to much in my case.

    From all the information I've gathered and experimenting I've done, here's what I think the idea of this product is...

    Few video cards support 800x480, but widescreen LCD touchscreens seem to be in demand. Their solution is to produce a widescreen LCD that has a built in scaler to squish the most common 4:3 resolutions such as 800x600, 1024x768, etc. into the widescreen format to maximize it's compatibility with almost any video card.

    This will appeal to most people who aren't particular about viewing dot-for-dot native resolution on their display (many people have no clue what that means, or don't care they just want blingy wide screen). An LCD screen showing dot-for-dot in native resolution gives the clearest and most accurate display. Any scaling done will distort the display. For example if you buy a Dell LCD monitor native resolution of 1280x1024 and you size your desktop to 1024x768 there will be scaling and distortion and you will not get maximum clarity unless you size your desktop to 1280x1024. Some find this acceptable, some don't.

    Kinda sad that these guys don't make it clear about all this for anyone considering buying the thing. The best result I could get with the OQO is I set the OQO for 800x480 and it appears that the monitor's scaler first squishes it to 640x480, then stretches it again to 800x480 to display it, causing a good deal of distortion evident by jagged fonts and things like that. It looks like the monitor converts a widescreen signal to 4:3 and then stretches it back to 800x480.

    Why do I care? Well, my media application uses circles for buttons, for example. Unless I can get the monitor to show dot-for-dot I will see ovals. Showing dot-for-dot resolution, IMO should be a standard feature of all LCD monitors, especially when you set that resolution in Windows display properties as I have done with the OQO.

    With the example workarounds you posted, as well as some others I've seen, it looks like people have gotten it to work. Still, I wonder if they are really seeing dot-for-dot 800x480 or a distorted version like I'm seeing with the OQO. No real way to confirm.

  2. #22
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    agree with you, native resolution is surely the best

    So your problem is the automatic stretching of the xenarc that seems to mess up everything, have you played with the following xenarc on screen display functions ?

    - Clock
    - Scale

    Were you able to reproduce the same issue using a different video card ?

    i'll post my luck with my built-in intel 915gm video card

  3. #23
    kuo
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    i have 3 different xenarc 700TSV's and i have been able to get all 3 to show 800x480 with no scaling using ati, nvidia, and matrox cards. it is a pain however to get just the right settings. on the older model 700TSV the powerstrip settings in xenarc's faq work well. for the newest screen i have, i had to start with 800x600 in powerstrip and then decrease the 600 to 480 in the custom resolution settings page. this got me a similar result as described above. my resolution was set at 800x480 but the osd reported 640x480 and the image although in the correct proportion looked scaled and not sharp at all. i was able to get the screen to detect 800x480 correctly by messing with the refresh rate in powerstrip. turns out that bumping the refresh from 60 up to 65 did the trick. maybe these 705 are different (crappier), but from my experience and research on these boards, xenarc 700 series have been able to show 800x480 correctly once you get the settings just right.
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  4. #24
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    Quote Originally Posted by kuo View Post
    i have 3 different xenarc 700TSV's and i have been able to get all 3 to show 800x480 with no scaling using ati, nvidia, and matrox cards. it is a pain however to get just the right settings. on the older model 700TSV the powerstrip settings in xenarc's faq work well. for the newest screen i have, i had to start with 800x600 in powerstrip and then decrease the 600 to 480 in the custom resolution settings page. this got me a similar result as described above. my resolution was set at 800x480 but the osd reported 640x480 and the image although in the correct proportion looked scaled and not sharp at all. i was able to get the screen to detect 800x480 correctly by messing with the refresh rate in powerstrip. turns out that bumping the refresh from 60 up to 65 did the trick. maybe these 705 are different (crappier), but from my experience and research on these boards, xenarc 700 series have been able to show 800x480 correctly once you get the settings just right.
    alright, thats helpful, i am currently playing with the refresh rate and notice that the 705tsv is constantly adjusting the scaling, some refresh rate scale the image perfectly, but none shows a sharp picture like 800*600

    BTW Kevin_S, i do experience the exact same issue, image is auto resized to the top of the screen leaving a HUGE black bar below, XENARC sucks at auto resizing !!!!

    still playing with powerstrip, will report my luck in a bit

    EDIT: spend 1 full hours on powerstrip, did get some full scaled result, but resoltion display switch to 640*480.
    Also, when it display 800*480 resolution with the weird stretching, the OSD info shows 800*600, GRRRRR !!!

    i'm calling Xenarc tomorrow

    will update as usual

  5. #25
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    Based on what I've seen, I really believe no matter what widescreen resolution you throw at this monitor it will first scale it to the closest 4:3 resolution, then stretch or squish it into 800x480.

    I tried another video card (ATI X1950), and could not get the monitor's OSD "Information" section to show any widescreen resolution (I get the common 4:3 ones like 640x480, 800x600, 1024x768, etc).

    Kuo's post actually got my hopes up but I tried the 65Hz and got no change in my result. I believe the 705TSV is a different animal (yes, crappier) than the 700. A little later tonight I will post some of the responses I got from their support people, one of which suggests using the 700TSV instead.

  6. #26
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    called support and talk to Jimmy Hu ([email protected])

    he advised me to try the following powerstrip setting.

    Tried and got the image shrink automatically to the left portion of the screen instead of the top, LOL

    Kevin_S, give this a try and let me know how that comes out

    Uncheck real-time adjustment

    Horizontal
    Scan Rate 29.769
    Active 800
    Front Porch 80
    Sync Width 88
    Back Porch 992
    Total 992

    Vertical
    Refresh rate 59.897
    Active 480
    Front Porch 1
    Sync Width 3
    Back Porch 13
    Total 497

    ps: i couldn't get the numbers right, when you edit one field, powerstrip is always changing others. But i got very similar numbers, so that shouldn't matter

    will contact Jimmy back

  7. #27
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    Ah Jimmy... wait til I show you some of the things he's said. When you did those PowerStrip settings what did the OSD Info say?

  8. #28
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    FYI: Our email conversation
    ---------------------------------------------------------------------

    From: Mathieu Bouvier [mailto:[email protected]]
    Sent: Thursday, December 13, 2007 8:58 AM
    To: Jimmy Hu
    Subject: Re: 705tsv



    it didn't work either, the image is shrink to the left portion of the screen instead of the top

    anything else to try ?


    From: Jimmy Hu <[email protected]>
    Date: Dec 13, 2007 9:04 AM
    Subject: RE: 705tsv
    To: Mathieu Bouvier <[email protected]>


    I tried it with ATI 9550 and it seems to be ok. You might want to fine tune the refresh rate until the screen is full.




    Regards,

  9. #29
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    Quote Originally Posted by Kevin_S View Post
    Ah Jimmy... wait til I show you some of the things he's said. When you did those PowerStrip settings what did the OSD Info say?
    so youve got the image properly resized but the resolution displayed was 640x480 ?

  10. #30
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    got some pretty good result with picture fully stretched, windows XP shows 800*480 but the OSD shows 640*480

    here is what can be displayed on the screen at that resolution (you can see my powerstrip setting too)

    Is that 640*480 or 800*480 ?




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