c3m0
commented
1 year ago I have made some further diggin' in this matter.
It seems Sumatra does in fact take notice to the scroll speed opted for (here in Elan settings), but it multiplies it like 10x or something. I need to have the setting set to the very lowest in Elan settings to make it even remotely possible for me to with very very focused precision be able to scroll my huge PDF document as intended, whereas a slight more slide on the touchpad makes me race away. I mean, I literally scroll from the first to last page on 233 page PDF with only one two-finger swipe on the touchpad. It's that sensitive. If I put the Elan settings to the very lowest (to make it somewhat possible to use in Sumatra) then (naturally) the scroll speed is terrible slow in all other software (Chrome, Firefox, Adobe Acrobat, etcetera etcetera) so this is really not an option. I'm curious why Sumatra puts so much extra boost on the scrolling speed.
T-Dane
kjk
Hi!
My "case" is pretty much the same as the following (closed) topic:
https://github.com/sumatrapdfreader/sumatrapdf/issues/873
I have a Lenovo Ideapad 320-17AST with a ELAN Touchpad. Windows (11) tells me driver is: ELAN Touchpad 19.4.7.3_HIDI2C_X64_WHQL. (The device-to-speak is simply named "ELAN pointing device" under Device Manager.)
Anyways, if I set the scroll speed for the touchpad (in it's options) this value is respected by web browsers, MS Office, OpenOffice, etc etc etc. In short, it's respected by most software, including Adobe Acrobat. Sumatra PDF Viewer, on the other hands, does not respect this value; when I two-finger-swipe downwards (the standard procedure from scrolling with this touchpad, as with most) the scrolling is made very very rapidly. I have to be very very very careful to scroll slowly. If Sumatra insists on having it's own "engine" for the scrolling (overriding general settings), there should be an option to set it accordingly to ones own preferences. My two cents however.
Thanks for great software btw! :)