Problem with Asus T103HAF, intermittent writing with Asus pen

Discussion in 'Asus' started by Luca92, Nov 18, 2019.

  1. Luca92

    Luca92 Pen Pal - Newbie

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    Hello, I have Asus Transformers Mini T103 HAF that is equipped with active digitizer with pen, with N-trig technology. The writing is continuous if the hand does not touch the screen or if a handkerchief or anything insulating prevents direct contact between the hand and the screen, while it is intermittent if the hand touches the screen. In particular, the writing is intermittent if the hand touches the screen before the pen, while it is continuous if the pen touches the screen before the hand.





    Of course, touch the screen every time first with the tip of the pen and then with the hand is uncomfortable and not natural and then leads to the problem of intermittent writing. All Windows updates, Bios updates, Asus updates, Active “ignore touch input when I use the pen” have been made, calibration has been done and many other attempts. I verified that the problem is not in the contact between my hand and the pen, but between my hand and the tablet (the screen). So by placing a conductive thing on the screen like my hand, this problem occurs. The videos on this Youtube channel that describe this problem are a total of 4.



    I also changed the pen, but the problem is not in the pen (the old pen is on the left of the PC).
    Thanks, bye,

    Luca
     
  2. crazycat

    crazycat Scribbler - Standard Member

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    This is likely a problem of short hover distance. Notice when you bring the pen close to the device without touching the display, a cursor appear? If your palm touch the display after it detect pen and show the pen cursor, palm rejection would activate and won't trigger touch. Generally the shorter the hover distance, the slower the screen detect pen and the easier it is to accidently trigger touch. Try putting your pen near the display to see the furthest distance from the display that the cursor can show up. Has it always been like that or just recently? Is it after a Windows update or just happen all of the sudden?

    Some bad digitizer only recognize pen input upon touching the display (aka no hover distance), that look a lot like how your pen performed. If that is the case then the only thing you can do is wearing a drawing glove. If it has not always been like that and still have warranty then try bring it to repair.
     
    Last edited: Dec 7, 2019
  3. Luca92

    Luca92 Pen Pal - Newbie

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    Hello, first of all thanks for the reply. As you can see from this video:
    even without touching the screen the pen is detected and the touchscreen is deactivated, when I move the pen away the touch screen works normally. Does this mean that the palm rejection is present right? Or do you need anything else to say that the palm rejection is present? I had bought this device because it had the n-Trig digitizer the same as the Microsoft Surface and so since it's the same company and the same component in my opinion the palm rejection is present, only it doesn't work well. What do you think about it?
     
    Last edited: Dec 8, 2019
  4. drzeus

    drzeus Pen Pal - Newbie

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    Hi Luca! Did you have this problem from day 1 of owning or has it appeared recently?
    I had a similar problem after using my UX370 (bought June 2018) complete with Asus pen for a whole 18 months without problem. I have literally written miles with my pen. I love it. I've been writing with Wacom pens since 2003 until I got this. All my text editing is by pen.
    I had checked the same box (Ignore touch whilst using pen) and also unchecked the box for 'Write in handwriting panel with your fingertip".
    I had a similar problem in that as well as writing where the pen tip was, I was getting randoms marks anywhere my hand touched. It had never done that before.
    I thought the problem was the Win10 1909 update so I uninstalled it and the pen seemed more normal but not quite 100%. The next day my pen would not work at all. It turns out that the battery was dead. The battery expiry date was in 2017, before I even bought my pc!
    Anyway, new battery and the pen was back to being almost 100% again. So I reinstalled 1909 and instead unistalled the KB that had been installed along with the first install of 1909, and disabled updates.
    Since then my pen has been pretty well back to normal. I have now re-enabled updates and am up to date for my pc and without problems generally with the pen. But in recording a video I have noticed that if I rest my palm on the screen and write immediately, all is good. If I rest my palm and delay in writing, then the pc picks up focus on my hand first and I have to lift my hand to get it to refocus on the pen. So they have definitely screwed with palm rejection somewhere. Typical Microsoft, fix what wasn't broken so that someone gets a better looking smiley or some other crap.
    There is a BIG problem with palm rejection with Surface Pro users (like your problem. Do a search on microsoft's own forum to see that).

    So if yours was all working OK at some point, check your battery in the pen and check your Win10 updates.
    At the moment, mine is working acceptably, and in fact works better when the "Ignore touch input when I'm using my pen" is UNCHECKED (no stray marks from palm!) I hope they restore it to how it was.
    If it never ever worked properly, something is up either with your pen or the Transformer. You could try the pen on a Surface Pro 3 in a nearby shop to check it.

    I can cope with odd bits of ink because I only write/annotate but it must be terrible if you want to draw.
    I have noticed that keeping only the part of the resting hand curved not with little finger out also stops stray marks; any finger extension is perceived as input, especially when "Ignore..." is checked!! Crazy!
     
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