| === dandrader is now known as dandrader|afk | ||
| === dandrader|afk is now known as dandrader | ||
| === gustavold is now known as gustavold_afk | ||
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| === dandrader|lunch is now known as dandrader | ||
| === dandrader is now known as dandrader|afk | ||
| === dandrader|afk is now known as dandrader | ||
| ppd | hi, anyone here? How do I check multitouch capabilities of my screen in ubuntu? I remember having multitouch to some extent but in Quantal and Raring there is nothing beyond more or less unusable two finger gestures | 19:54 |
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| dandrader | ppd, you can try xinput test-xi2 <device> | 20:05 |
| ppd | dandrader, wow thanks! Max number of touches reports as 5 for the touchscreen. So I guess somehow multitouch should somehow work. At least for this resize handles thingie. | 20:09 |
| ppd | what am I supposed to be able to do in this window that openend up? draw something with my fingers? If so, then this doesn't work... :( | 20:10 |
| dandrader | yes, it should | 20:10 |
| dandrader | ppd, not, it's just there to capture events and print them on the terminal | 20:10 |
| ppd | dandrader, interestingly I get a list with "valuators" when I touch the screen with more than two fingers. However all are "0.00" except the first two | 20:12 |
| dandrader | ppd, that's not a problem. the first two are probably x and y coordinates of the touch point | 20:18 |
| dandrader | and the rest are likely auxiliary information such as size of touch area, pressure | 20:18 |
| ppd | dandrader, I figured when I moved around a little on the screen :)) | 20:19 |
| ppd | the question now is, where is the black hole that sucks the multitouch information | 20:19 |
| ppd | I once used a program called mtview in an older version on ubuntu to visualize the fingers recognized. Seems not in the repos unfortunately | 20:20 |
| dandrader | well, unity catches gestures with 3 and 4 touches. so applications will never see them | 20:20 |
| dandrader | applications will only receive 2-finger gestures | 20:20 |
| ppd | ah I see. Okay, that sounds sensible. I even found a list of supposed-to-work gestures in unity. However none of them work and I'm trying to find out why | 20:22 |
| ppd | btw. I really appreciate that you're trying to feed some info to a multitouch noob | 20:24 |
| dandrader | yw | 20:29 |
| ppd | dandrader, do you have an idea how to proceed? I assume the info on this page is correct:https://wiki.ubuntu.com/Multitouch So there should be quite some gestures available to me. However nothing works. So in my naive mind I assume the unity multitouch framework (grail?) doesn't receive the touch events/data. How would I start debugging that? | 20:31 |
| dandrader | hmm, that won't be so simple. | 20:34 |
| dandrader | one way is to run compiz manually from a terminal so that you can check grail output. like that: | 20:34 |
| dandrader | GRAIL_DEBUG=-1 compiz --replace ccp | 20:34 |
| dandrader | that from a virtual terminal | 20:34 |
| dandrader | but debugging compiz or xserver from your own machine is a pain | 20:35 |
| dandrader | it's more sane to do that via ssh | 20:35 |
| ppd | well that would be no problem | 20:36 |
| ppd | the thing is, I'm pretty much clueless, so I would need some serious guidance and such | 20:36 |
| dandrader | ok, good. another way would be to kill compiz (so that unity doesn't capture all 3 and 4 finger gestures) and run a simple grail or geis test application to check the gesture events | 20:37 |
| dandrader | geis tools ships a python app for that. it's called "geis view" if I'm not mistaken | 20:37 |
| ppd | ok. so I start a let's say lxde session or so and run the geisview program from there | 20:37 |
| dandrader | another thing is checking the output of xinput test-xi2 <device>. perform a multitouch gesture and see how many touch points are generated | 20:39 |
| dandrader | the "detail: 123" parameter tells the touch id | 20:39 |
| ppd | this should work from inside unity for more than 3 touches, correct? | 20:39 |
| dandrader | I think so | 20:39 |
| dandrader | so you should get a different stream of touch events (different detail param) for each touch | 20:40 |
| ppd | detail seems to just increase by 1 for every time I start touching the screen | 20:40 |
| dandrader | let's say you move 3 fingers along the screen. you should get 3 new detail numbers | 20:41 |
| dandrader | because new 3 touch points were detected and reported | 20:41 |
| ppd | okay. one finger is detail: 0, if I touch with more I get details numbers >60 which do not really correspond to the amount of fingers I use | 20:43 |
| ppd | however the number increases with every "gesture" | 20:43 |
| ppd | I do receive events if I move up to 5 fingers on the screen, the sixth does not generate any events. So 5 finger support seems to be correct | 20:44 |
| ppd | interesting. The number always increases by two, no matter how many fingers I touch with | 20:50 |
| ppd | seems it recognizes only two at a time | 20:50 |
| dandrader | ok. gotta go. good luck with your debugging ! | 20:52 |
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