 Touchscreen as touchpad - relative mouse input |
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 Jun 16 2018, 11:28 AM
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#1
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Group: Members Posts: 67 Joined: 19-January 18 Member No.: 816,673  |
A video is worth 1000 words:
https://www.youtube.com/watch?v=bsJn3eMvG7w tl;dw this technique changes the touchscreen from an absolute mode touchscreen (which is too fiddly for full linux desktop use) into a relative mode touchpad like on most laptops Easy mode:
(Instead of installing mtrack from debian repos, there is an improved version that must be built from source...)
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Jun 16 2018, 08:32 PM
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#2
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Group: Members Posts: 43 Joined: 6-June 18 Member No.: 823,980 |
Thank you for this! Its an excellent start. Still needs some tweaking, but you've more than got the ball rolling on a very popular request!
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Jun 17 2018, 03:07 AM
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#3
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Group: Members Posts: 67 Joined: 19-January 18 Member No.: 816,673 |
QUOTE(shinkamui @ Jun 17 2018, 05:32 AM)  Thank you for this! Its an excellent start. Still needs some tweaking, but you've more than got the ball rolling on a very popular request! Yeah still need to figure out a way to do dragging that doesn't emit a click before doing so, though I reckon this will either require two fingers or add click latency Edit: it's possible but fiddly by holding with one finger and moving a second |
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Jun 17 2018, 05:14 AM
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#4
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Group: Members Posts: 126 Joined: 7-January 18 Member No.: 815,997 |
Thx. Very nice work!
Now we have to get this switchable via hotkey... Which seems not no be that easy because of the currently required restart. Are the different mouse clicks (right,left,middle) already handled somehow? What about scrolling? |
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Jun 17 2018, 06:34 AM
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#5
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Group: Members Posts: 67 Joined: 19-January 18 Member No.: 816,673 |
QUOTE(mithrandir @ Jun 17 2018, 02:14 PM) Thx. Very nice work! Now we have to get this switchable via hotkey... Which seems not no be that easy because of the currently required restart. Are the different mouse clicks (right,left,middle) already handled somehow? What about scrolling? Not sure how you'd go about switching it, personally I don't see a need for any other mode than this but your needs may be different Right click is two finger tap, scrolling is two finger scroll, left click is just tap, left click drag is hold then move a second finger, not sure about middle mouse but it should be configurable as 3 finger tap or similar Scrolling a bit shit and left click drag doesn't work unless you install the latest version ('hard mode' above) |
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Jun 17 2018, 09:39 PM
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#6
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Group: Members Posts: 15 Joined: 28-February 18 Member No.: 818,513 |
Switching would be nice for applications like xournal or other painting applications. Perhaps this possible by not replacing, but addding the driver and then disable always one of them via xinput?
Bit its ndeed a good start! |
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Jun 18 2018, 02:47 AM
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#7
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Group: Members Posts: 126 Joined: 7-January 18 Member No.: 815,997 |
QUOTE(mifritscher @ Jun 17 2018, 09:39 PM) Switching would be nice for applications like xournal or other painting applications. Perhaps this possible by not replacing, but addding the driver and then disable always one of them via xinput? Bit its ndeed a good start! Tried yesterday, but no success so far. Some applications, i.e.,Chrome work better with the "simple" touch interface. Also for the desktop itself the simple interface seems better with a window manager optimized for touch (unsure which one to use). But many applications or parts of it are nearly unusable without control of the mouse pointer. Therefore switching would be great. |
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Jun 25 2018, 03:07 PM
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#8
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 Group: Members Posts: 34 Joined: 25-June 18 Member No.: 825,001 |
QUOTE(Kiriririn @ Jun 16 2018, 09:28 PM) A video is worth 1000 words: https://www.youtube.com/watch?v=bsJn3eMvG7w tl;dw this technique changes the touchscreen from an absolute mode touchscreen (which is too fiddly for full linux desktop use) into a relative mode touchpad like on most laptops Thanks very much, this makes the gebian much better to handle. I only don't get a grip on the dragging, sometimes it works but mostly not. |
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Jun 26 2018, 02:51 AM
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#9
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Group: Members Posts: 67 Joined: 19-January 18 Member No.: 816,673 |
QUOTE(psionlover @ Jun 26 2018, 12:07 AM) QUOTE(Kiriririn @ Jun 16 2018, 09:28 PM) A video is worth 1000 words: https://www.youtube.com/watch?v=bsJn3eMvG7w tl;dw this technique changes the touchscreen from an absolute mode touchscreen (which is too fiddly for full linux desktop use) into a relative mode touchpad like on most laptops Thanks very much, this makes the gebian much better to handle. I only don't get a grip on the dragging, sometimes it works but mostly not. The most consistent dragging is by holding one finger and moving another. Annoyingly the synaptics-style 'double tap but drag rather than releasing the second tap' gesture doesn't work right in mtrack as it emits the first tap, preventing dragging anything that might react to a single tap. |
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Jun 27 2018, 09:07 AM
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#10
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Group: Members Posts: 34 Joined: 25-June 18 Member No.: 825,001 |
QUOTE(Kiriririn @ Jun 26 2018, 12:51 PM) The most consistent dragging is by holding one finger and moving another. Dooesn't work with my version of fingers  But found a more consistent workaround for my fingers: Alt + tap-drag 
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Jul 10 2018, 05:33 PM
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#11
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Group: Members Posts: 3 Joined: 28-June 18 Member No.: 825,183 |
Works really well. Thanks very much for this tip.
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Jul 11 2018, 12:48 AM
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#12
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 Group: Admin Posts: 937 Joined: 30-April 08 From: Italy Member No.: 21,713 |
QUOTE(abgd @ Jul 11 2018, 03:33 AM) Works really well. Thanks very much for this tip. Thanks from me too, I'll definitively use it once I'll install Gemian. Varti |
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Sep 19 2018, 11:46 AM
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#13
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Group: Members Posts: 3 Joined: 4-May 18 Member No.: 822,088 |
QUOTE(Kiriririn @ Jun 16 2018, 08:28 PM) A video is worth 1000 words: https://www.youtube.com/watch?v=bsJn3eMvG7w tl;dw this technique changes the touchscreen from an absolute mode touchscreen (which is too fiddly for full linux desktop use) into a relative mode touchpad like on most laptops Easy mode:
(Instead of installing mtrack from debian repos, there is an improved version that must be built from source...)
Thanks for this , applied it and it is great however there seem to be many many options we can use to tweak the driver and I am not clear how to click and drag accurately. How much have you experimented with the settings? |
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Sep 19 2018, 03:55 PM
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#14
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Group: Members Posts: 67 Joined: 19-January 18 Member No.: 816,673 |
QUOTE(Alexi Pistonrod @ Sep 19 2018, 08:46 PM) Thanks for this , applied it and it is great however there seem to be many many options we can use to tweak the driver and I am not clear how to click and drag accurately. How much have you experimented with the settings? For click and drag, touch and hold with one finger, then add a second finger anywhere on the screen and drag with the second finger, keeping the first finger stationary Unfortunately the 'synaptics-style' click and drag (where you double tap but start dragging on the second tap) doesn't work reliably as it emits a click from the first tap (presumably to avoid input lag) |
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Nov 3 2018, 08:35 AM
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#15
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Group: Members Posts: 41 Joined: 9-August 18 Member No.: 827,849 |
QUOTE(Kiriririn @ Jun 16 2018, 11:28 AM) [*]Edit /usr/share/X11/xorg.conf.d/40-libinput.conf, find: This is amazing! I have two practical questions, if anyone knows: 1) Is it possible to switch between original behaviour, and the one you enabled by switching between two versions or the file I quoted above? 2) Is it possible to flip the scrolling direction? |
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