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Old 06-30-2022, 10:25 AM   #1
productivity01
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Koreader exits when using the scroll middle mouse button

I am used to using the middle mouse button for scrolling when reading PDF files. Right now, KOreader exits when I scroll down or up.

How can I fix this?

Thank you!
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Old 06-30-2022, 02:38 PM   #2
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On which platform?
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Old 07-01-2022, 07:51 AM   #3
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Old 07-01-2022, 08:52 AM   #4
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It should work. If that's not the case then attach the logs.

You can get them by executing the binary from a terminal.
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Old 07-05-2022, 05:03 AM   #5
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There's also a youtube video(in spanish) that mentions the same issue. Had to google "koreader scroll" last week.

That's a bug but doesn't happen everywhere, so logs are very welcome.

FWIW I cannot reproduce with the exact same version and my desktop mouse.

Code:
sudo evtest /dev/input/by-id/usb-Logitech_G203_LIGHTSYNC_Gaming_Mouse_206D30754642-event-mouse
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x46d product 0xc092 version 0x111
Input device name: "Logitech G203 LIGHTSYNC Gaming Mouse"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 272 (BTN_LEFT)
    Event code 273 (BTN_RIGHT)
    Event code 274 (BTN_MIDDLE)
    Event code 275 (BTN_SIDE)
    Event code 276 (BTN_EXTRA)
    Event code 277 (BTN_FORWARD)
    Event code 278 (BTN_BACK)
    Event code 279 (BTN_TASK)
    Event code 280 (?)
    Event code 281 (?)
    Event code 282 (?)
    Event code 283 (?)
    Event code 284 (?)
    Event code 285 (?)
    Event code 286 (?)
    Event code 287 (?)
  Event type 2 (EV_REL)
    Event code 0 (REL_X)
    Event code 1 (REL_Y)
    Event code 6 (REL_HWHEEL)
    Event code 8 (REL_WHEEL)
    Event code 11 (REL_WHEEL_HI_RES)
    Event code 12 (REL_HWHEEL_HI_RES)
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)
Properties:
It produces the following event when scrolling with the mouse wheel

Code:
Event: time 1657011400.560990, type 2 (EV_REL), code 8 (REL_WHEEL), value -1
Event: time 1657011400.560990, type 2 (EV_REL), code 11 (REL_WHEEL_HI_RES), value -120
Event: time 1657011400.560990, -------------- SYN_REPORT ------------
A tricky bug, it seems. Hopefully easy to fix once we have proper crash logs.
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Old 07-07-2022, 05:20 PM   #6
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I scroll all the time because it's a convenient way to turn pages.
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Old 07-09-2022, 07:20 AM   #7
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Actually my bad. I've tested with an epub and missed OP info about "pdf". The issue is being triaged/worked in https://github.com/koreader/koreader/issues/9311
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