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Jittering when scrolling with the mouse wheel in Plasma
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mani001
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Joined: 04 Dec 2004
Posts: 337
Location: Oleiros

PostPosted: Thu Oct 18, 2018 11:03 am    Post subject: Jittering when scrolling with the mouse wheel in Plasma Reply with quote

Hi,

after updating to (KDE) Plasma 5.13 and Qt 5.11, I'm experiencing an annoying problem (bug??) when scrolling documents: if I wheel up or down very fast, there is some kind of jittering (I don't know whether this is the right word), that is, the document is supposed to scroll, e.g., down fast but every now and then it scrolls up a little bit (and then keeps going down). If I wheel down more slowly, everything is fine. Also, when I'm experiencing the jitter, if I minimize the window and then maximize it again, the "jitter" goes away.

Anyone else being hit by this? I guess it's qt-related but I know close to 0 about these things.

Cheers.
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2266
Location: near Augsburg, Germany

PostPosted: Thu Oct 18, 2018 4:16 pm    Post subject: Reply with quote

Which graphics card and driver are you using ?
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mani001
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Joined: 04 Dec 2004
Posts: 337
Location: Oleiros

PostPosted: Thu Oct 18, 2018 4:20 pm    Post subject: Reply with quote

From dmesg, the card is

Code:
Advanced Micro Devices, Inc. [AMD/ATI] RV710 [Radeon HD 4350/4550]


and I'm using ati driver.
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