Page Scrolling Bug, (E-bookreader) Linux

dejy · 10-20-2014, 03:34 PM

Happens all the time, often when one clicks onto a different window and than back the e-bookreader, it auto scrolls the text back up some couple paragraphs or page. Extremely annoying!
Can't seem to find any preference to control it, and will definitely un-install if I can't resolve this.

Edit: I Can replicate it consistently by clicking on the e-bookreader page (location doesn't matter) and than mouse wheel scrolling down.

kovidgoyal · 10-20-2014, 11:01 PM

Quote:

Originally Posted by dejy

and will definitely un-install if I can't resolve this.

Go right ahead.

eschwartz · 10-21-2014, 12:02 AM

I am unable to duplicate this bug on my ArchLinux PC.

Are you using the latest version, or the one your distro supplies?

dejy · 10-25-2014, 02:34 PM

Quote:

Originally Posted by eschwartz

I am unable to duplicate this bug on my ArchLinux PC.

Are you using the latest version, or the one your distro supplies?

I have tried both the arch-linux ppa and the official download from the Calibre site.

I don't have problems with any kind of scrolling other than e-book-viewer, I guess it could be some very strange interaction between synclient/xorg/e-bookviewer that is specific to it. Not sure how to track it down short of stepping through it with a debugger though.

eschwartz · 10-26-2014, 10:40 PM

I would vote for weird interactions. Unless someone else can reproduce this bug... Are you doing anything out of the ordinary with your setup?

(P.S. What "arch-linux ppa"?? Arch linux doesn't use PPAs.)

obolon_svitle · 11-16-2014, 08:53 PM

A have this bug on my Debian testing too. This bug appeared after updating calibre package from debian repository (from v2.4 to v2.5), but it also affects the latest version (2.10)

theducks · 11-16-2014, 09:30 PM

Quote:

Originally Posted by obolon_svitle

A have this bug on my Debian testing too. This bug appeared after updating calibre package from debian repository (from v2.4 to v2.5), but it also affects the latest version (2.10)

Repository versions are not supported here, they may have been adjusted (I call it tampered with).
Use the official Calibre version.

BTW the viewer has a 'Scroll/Paged" icon to select the mode

obolon_svitle · 11-17-2014, 08:36 AM

Quote:

Originally Posted by theducks

Repository versions are not supported here, they may have been adjusted (I call it tampered with).
Use the official Calibre version.

BTW the viewer has a 'Scroll/Paged" icon to select the mode

This small video demonstrates problem. I use only scrolling down, but page scrolls up after clicking on any place on the text and scrolling down. (Version of calibre - 2.10 official).
https://vimeo.com/112039460

eschwartz · 11-17-2014, 11:09 AM

Quote:

Originally Posted by theducks

Repository versions are not supported here, they may have been adjusted (I call it tampered with).
Use the official Calibre version.

Kovid isn't afraid of tampering; rather, it is because the distro version is traditionally out of date within days of the OS being moved from testing to production.

There are usually a squillion bugfixes since then, and besides one never tests bugs on outdated versions of the software.
I am pretty sure I have seen support for distro bugs on rolling-release/source-based distros (as in, up to date versions).

DoctorOhh · 11-17-2014, 10:02 PM

Quote:

Originally Posted by eschwartz

Kovid isn't afraid of tampering; rather, it is because the distro version is traditionally out of date within days of the OS being moved from testing to production.

Being severely out of date is one reason, theducks is also correct. I'm not a Linux user so my terminology may not be close to accurate, but the problems in the past have often been because the folks creating the distro have altered or tampered with calibre's dependencies to suit the OS or desktop.

DoctorOhh · 11-17-2014, 10:04 PM

Quote:

Originally Posted by obolon_svitle

This small video demonstrates problem. I use only scrolling down, but page scrolls up after clicking on any place on the text and scrolling down. (Version of calibre - 2.10 official).
https://vimeo.com/112039460

To submit a bug report review this page.

kovidgoyal · 11-17-2014, 10:15 PM

This is definitely caused by something weird on your systems. I haven't the foggiest idea what. If I had to guess, I'd guess that you have enabled support for mouse gestures and your desktop environment is interpreting the mouse movements as the back gesture and sending the equivalent keyboard shortcut to the viewer.

10-20-2014, 03:34 PM	#1
dejy Junior Member Posts: 2 Karma: 10 Join Date: Oct 2014 Device: none	Page Scrolling Bug, (E-bookreader) Linux Happens all the time, often when one clicks onto a different window and than back the e-bookreader, it auto scrolls the text back up some couple paragraphs or page. Extremely annoying! Can't seem to find any preference to control it, and will definitely un-install if I can't resolve this. Edit: I Can replicate it consistently by clicking on the e-bookreader page (location doesn't matter) and than mouse wheel scrolling down. Last edited by dejy; 10-20-2014 at 03:37 PM.

11-16-2014, 08:53 PM	#6
obolon_svitle Junior Member Posts: 2 Karma: 10 Join Date: Nov 2014 Device: Amazon Kindle Paperwhite	A have this bug on my Debian testing too. This bug appeared after updating calibre package from debian repository (from v2.4 to v2.5), but it also affects the latest version (2.10) Last edited by obolon_svitle; 11-16-2014 at 09:00 PM.

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10-21-2014, 12:02 AM	#3
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	I am unable to duplicate this bug on my ArchLinux PC. Are you using the latest version, or the one your distro supplies?

10-26-2014, 10:40 PM	#5
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	I would vote for weird interactions. Unless someone else can reproduce this bug... Are you doing anything out of the ordinary with your setup? (P.S. What "arch-linux ppa"?? Arch linux doesn't use PPAs.)

11-17-2014, 10:15 PM	#12
kovidgoyal creator of calibre Posts: 45,337 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	This is definitely caused by something weird on your systems. I haven't the foggiest idea what. If I had to guess, I'd guess that you have enabled support for mouse gestures and your desktop environment is interpreting the mouse movements as the back gesture and sending the equivalent keyboard shortcut to the viewer.

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