Smoother scrolling?

[borekb]

ConEmu is quite eager when scrolling, at least on my machine. I only touch my touchpad briefly but it jumps a couple of lines. If I'm not careful, it might scroll several pages at once.

I'm not sure how easy or hard is to improve scrolling, ideally making it smooth as in Chrome or other apps, but I didn't find any settings related to this. Would be awesome if the experience was better.

I'm on a laptop with Microsoft's "precision drivers", ConEmu 180506 Preview, Windows 10. I tried scrolling in PowerShell console and while it was also not the best experience ever, the scrolling felt more "cautious" - it was not scrolling around so fast.

[Maximus5]

Do you mean "two finger scroll touchpad"?

[borekb]

Yes. It's a Dell XPS 13 machine if that matters (it doesn't even have a single scroll area anymore, I need to scroll with two fingers). Thanks.

[Maximus5]

Please run ConEmu64.exe -basic -log, execute some command with long output (e.g. dir /s c:\Windows\system32) and try to scroll with touchpad.
If problem persists upload LogFiles to gist and put link here.

However ConEmu has scrollbar and you may use it for convenience.

[borekb]

It's a bit hard to communicate this but in the Gif below, I tried to scroll really slowly in both cmd.exe and ConEmu. The difference is quite big.

Does this help? Should I still produce the logs or is that not necessary?

[Maximus5]

Yes, I need logs.

[borekb]

Hi, logs are attached. Hopefully I produced them right, if not, please let me know and I will re-do them.

conemu-1560-logs.zip

[Maximus5]

I have a question.

What is the (expected) behavior of that mouse wheel?
In general, when user does one "click" of the wheel, they have an option to select how many lines of the contents to scroll. It's 3 lines per wheel click I think.
How about your device?

[borekb]

It used to be three lines at a time (by default) and I didn't change anything on my laptop but to answer your question about what would be my expected behavior, it would be browser-like smooth scrolling: slow when I'm using the two-finger gesture slowly, fast when quickly.

BTW, last week I used Mac for the first time and tried iTerm2 there. I was blown away when I was able to smooth-scroll through man pages in the less pager, with very browser-like experience. It must be experienced, it's hard to described the nuances of it but it worked really well.

[Maximus5]

I made a commit and it's interesting to compare it with iTerm2 (new build will be released soon)

[borekb]

Cool, I would assume this is relatively hard to implement (it took browsers years to do smooth scrolling properly on Windows) but if it works, that would be amazing.

[Maximus5]

I think it's not so smooth as iTerm2 but 180626 is expected to work properly with your touchpad ;)

[borekb]

Great, looking forward to trying it out later today!

[borekb]

Oh yeah, this is so much better! The current build goes in the right direction but the scrolling is noticeably slower than in other apps (I tried Chrome, Windows Explorer and Typora). In those app, I can flick the fingers quickly and it will scroll many pages at once. I don't get quite the same behavior in ConEmu but at least it is sensitive and I feel it reacting to the speed of my touch-scrolling which is lovely.

[kevin-he-01]

@Maximus5 Even as of 180626, smooth scrolling for precision touchpads is only improved when using the scrollback buffer, but not in fullscreen Linux applications that use its own scrolling mechanism, such as man or vim. For example, when scrolling through man pages using a precision touchpad, the scrolling speed is just as fast as before 180626. Should I open a new issue for that?

[cougar2009]

Is there any way to have a setting that allows to pick "how many lines to scroll each time" conemu doesn't seem to be changing based on the mouse settings in windows 10 and it is unbearably slow scrolling for me now.

[Maximus5]

If this issue is actual, I need LogFiles with repro description.

[borekb]

I'm no longer on Windows so if this issue is open due to me, feel free to close.