Lenovo LT1423p Review / Owner's Thread

Discussion in 'Hardware' started by oranjoose, Dec 14, 2013.

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  1. Seel

    Seel Pen Pal - Newbie

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    I just got this recently and I'm running it on a Windows 8.1 desktop machine with extend display. It's pretty good so far, but the initial setup was definitely a pain.

    I usually go to the internet for the most recent drivers first, this was a mistake in this case. The screen turned off and on randomly with the drivers from the Displaylink website. Use the driver that comes on the internal storage of the device.

    Using extended display, after you installed the device, the cursor will probably appear on your main screen first, which you usually don't want. You just have to go into tablet PC settings and click setup, press enter until the text appears on the screen of the Lt1423p and tap the pen / touch the screen, depending on what you're setting up.

    I installed Wacom's feel-it drivers for Wintab too. But installing those drivers will introduce another bug where you might need to restart your machine once or twice to get the cursor onto the Lt1423p again.

    Display link actually didn't play well with my AMD graphics card and manga studio, it would crash whenever I used any of it's 3d functions. I got an nvidia card now, the intel integrated graphics worked fine too.

    If you decide to get it, you definitely need another pen. The pen that comes with the unit is very small in order to fit in the silo. Think galaxy note stylus and hand cramps.
    So far I like the Bamboo Stylus Feel the best, because the cursor appears closest to the tip of the pen when calibrated right.

    Edge accuracy at the top and the bottom seems good, at the sides... not so much. Depending on whether you're right or left handed, the cursor will either drift to the left or to the right edge. The angle you hold the pen at matters, so you can mitigate the drifting a bit that way.
     
    Last edited: Feb 11, 2014
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  2. axr

    axr Pen Pal - Newbie

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    So this weekend I finally installed Win 8 Pro on an SSD for my T440p/LT1423p combo. I had to do it twice because the first time around I checked the option of "letting Windows get drivers automatically" during installation. And as soon as the LT1423p was plugged in, Win 8 immediately fetched some sort of "Lenovo external monitor" driver. It flashed across the screen rather quickly before I realized what was being installed (my having turned off UAC did not help).

    I then installed the LT's own driver on top of it. But calibration was persistently off, and on a few occasions downright unworkable.

    Instead of trouble-shooting/uninstalling drivers, I took the easy route and re-installed Windows with automatic driver installation turned off, which took at least another good hour mainly because of the 3 or 4 rounds of Windows updates.

    Anyway, for me the installation of only the bundled driver from LT1423p itself gave the best "out-of-box" results. Subsequent calibration improves edge accuracy minimally (even questionably).

    But then again I am using the digitizer pen mainly as a mouse replacement and for the occasional chicken scratch in Onenote app.

    A cheaper DisplayLink-based N-trig touch device with even better accuracy and responsiveness may suit my purpose even more, assuming someone builds one.

    Preferably at a 14" thin-bezelled 1050p goodness - the best compromise between screen real estate and DPI sensibility (as far as legacy app and RDP usability are concerned).
     
    Last edited: Feb 11, 2014
  3. Seel

    Seel Pen Pal - Newbie

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    Uh if anyone wants to buy this for art I would hold off right now. Looks like I found a fatal flaw with the pressure curve :(

    The pressure maxes out way too early, so you don't even get 256 levels of pressure... more like half that.
    On my ep121 with the same pen applying the same pressure the line is about 50% thickness while on the lt1423p it's already at 100%.

    I am super bummed out right now... Mabye it's just my unit but I doubt it.
    The firmware seems calibrated for the pen that ships with the unit which can't even reach max pressure on my ep121.
     
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  4. thatcomicsguy

    thatcomicsguy Pen Pro - Senior Member Senior Member

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  5. Seel

    Seel Pen Pal - Newbie

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    Well, this is what it's like compared to my Asus EP121

    Nevermind the awkward slider moving, I was looking at my hands through the camera.
    [video=youtube;h2q-btTaCnE]http://www.youtube.com/watch?v=h2q-btTaCnE[/video]
    I was using Manga Studio 5's G-Pen brush at a 2000px size with the Wacom Bamboo Stylus Feel.
     
  6. stoneseeker

    stoneseeker Animator and Art Director Senior Member

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    You can check to see exactly how many pressure levels your system is using by holding ctrl while clicking "about" in the Wacom properties window. This will bring up the driver info as well as a live number of pressure levels engaged. While its open just press your pen down on the screen and see what it registers. If it registers a full 256 then try thatcomicguys advice and use the presure curve editor. It works amazing, and might rescue the unit from being useless. If you only see 128 levels or so being reported at full pressure, then return that P.O.S. it's broken!
     
  7. Seel

    Seel Pen Pal - Newbie

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    Would if I could but I already returned it. I had to, because today was the last day of the RMA period and I didn't have any more time to mess with it.

    That said, I did try that pressure curve editor. I also tried some of the other suggestions in that thread. Didn't seem to help.

    My suspicion is that the firmware of the lenovo is somehow tuned to the crappy pen that comes with the unit. The pen can't actually reach maximum pressure levels, so maybe they just cut the pressure levels off at that point.
     
  8. wannabeartist

    wannabeartist Pen Pal - Newbie

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    Thanks for the honest feedback, guess i'll wait some, i should just get a cintiq 13hd but wonder if it's too small and then think i should get the yiynova 22 but i guess the safe bet would be the the cintiq, plus since the resolution is good on the 13hd i guess it's more about wrist strokes vs arm strokes.
     
  9. oranjoose

    oranjoose Pen Pal - Newbie

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    I find this very interesting for a couple reasons, I would like to know whatever details you would care to give about your setup.

    First reason: I personally tried a Surface Pro 2 pen on the lt1423p, and the eraser did not work.

    I emailed back and forth with Wacom support, and finally after returning results of running a special diagnostic tool, they concluded the following:

    "I have talked to the engineers and they looked over the information from the log and everything that needs to get it to work on the software side is working properly. Therefore, without us physically having one to test, are going to have to say it’s a hardware issue and they don’t physically support the eraser and second sideswitch feature. Wish I had better news for you."

    Second reason: it appears that it is not only me who has reported the eraser failing to produce input. Commander Wolf claims that eraser input does not work for his/her x220t pen: http://forum.tabletpcreview.com/har...ch-stylus-wireless-monitor-13.html#post365749

    Please give us more details about your setup, and how your pen's eraser works on the lt1423p.

    Thanks
     
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  10. axr

    axr Pen Pal - Newbie

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    So I won't bother swiping a pen off an IT fellow at the hospital to test it on my LT if two of you early adopters who posted videos and especially you who emailed Lenovo engineer and got a reply saying it won't work.

    Then I take as gospel that the eraser just won't work.

    Perhaps Lenovo should indeed split the LT touch monitor line into two: one with N-trig (or similar) - accurate, responsive, but rudimentary or no pressure support at all, at a sensible, legacy friendly 1050p 14".

    Then a 2nd line with full Wacom-enabled, artist-friendly version.

    Maybe add a 3rd line with porn-friendly 320000x160000 resolution and charge a pretty penny to those who "need it".
     
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