Arch Linux

wojcieche

Member

Registered: 2018-08-26

Posts: 12

1-pixel dead on the left window border - in Vivaldi browser

Hi,

I use Vivaldi browser (https://aur.archlinux.org/packages/vivaldi/) in KDE Plasma in Xorg.

Vivaldi has side panels and you can additionally turn on (it is disabled by default) a panel toggle, which allows to quickly switch on and off panels on clicking on the left-most border of the Vivaldi window.
You turn on panels toggle in Settings -> Panel -> Panel Options -> Show Panel Toggle

Panels with panel bar and panel toggle in Vivaldi

The problem is that there is 1-pixel dead at the left-most of the screen - the panel toggle does not react when mouse cursor is at the very left-most. Only when I am 2 pixels away from the border.
So I cannot just quickly ram a mouse cursor to the left-most and click but I have to precisely move a cursor a bit from the left edge.
How to get rid of this 1 dead pixel border or whatever it is..? :-/

Mod edit:
Replaced large image with link.

Please try to follow the CoC regarding posting large images https://wiki.archlinux.org/index.php/Co … s_and_code

- R00KIE

Last edited by R00KIE (2018-08-26 13:33:31)

circleface

Member

Registered: 2012-05-26

Posts: 639

Re: 1-pixel dead on the left window border - in Vivaldi browser

I don't know for sure since I do not use KDE, but I had this same problem when I used Wayland.  For some reason some Wayland compositors allow your mouse to go one pixel off the screen.  If you are running Wayland, try running KDE in xorg (I have no idea now to do this, but I think it is possible).

wojcieche

Member

Registered: 2018-08-26

Posts: 12

Re: 1-pixel dead on the left window border - in Vivaldi browser

I am already using KDE in Xorg, not Wayland. I added this detail to the first post. Thanks for the tip anyway.

Last edited by wojcieche (2018-08-26 02:51:37)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,842

Re: 1-pixel dead on the left window border - in Vivaldi browser

Window decoration?
KWin has vast settings for deco borders, but they're not necessarily honored by all decorations.

Just to be sure: the dead pixel isn't there in fullscreen (F11) mode?

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wojcieche

Member

Registered: 2018-08-26

Posts: 12

Re: 1-pixel dead on the left window border - in Vivaldi browser

Hi seth, yes! In fullscreen the left-most pixel on the left screen border is active!

So... how do I remove this window decoration? I have been looking for settings in Plasma system settings but found nothing relevant to this issue...

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,842

Re: 1-pixel dead on the left window border - in Vivaldi browser

kcmshell5 kwindecoration

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wojcieche

Member

Registered: 2018-08-26

Posts: 12

Re: 1-pixel dead on the left window border - in Vivaldi browser

I ran this command, control panel opened. I changed window borders from Normal to None, applied, rebooted to be sure. But it didn't help... :-(

And I can see why. Vivaldi does not use native window model.

Last edited by wojcieche (2018-08-26 14:45:15)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,842

Re: 1-pixel dead on the left window border - in Vivaldi browser

As mentioned, not all decos will actually honor these settings. Which one do you use? Does it have a settings page of its own?
(iirc Breeze has even more, but "proprietary" options)

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

wojcieche

Member

Registered: 2018-08-26

Posts: 12

Re: 1-pixel dead on the left window border - in Vivaldi browser

I have just 3 default decorations to choose: Breeze, Plastic and Oxygen. With all it is the same - 1 dead pixel on the left. They do not seem to have settings which would influence the behaviour.

I can see that changing decoration does not influence the look of the Vivaldi window.
Moreover, I am not sure how the architecture influence each other, but it may matter that Vivaldi browser GUI is rendered by Chromium engine embedded in it.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,842

Re: 1-pixel dead on the left window border - in Vivaldi browser

Stupid question: does the titlebar of the browser change w/ the deco settings or do you use the client side titlebar (kind of integrated into the toolbar)?

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

wojcieche

Member

Registered: 2018-08-26

Posts: 12

Re: 1-pixel dead on the left window border - in Vivaldi browser

Vivaldi by default does not have a native title bar, but it can be switched on in Settings -> Appearance. Once enabled, it changes according to chosen decoration. But it is only title bar that gets enabled. The rest of the browser UI seems to be drawn within web UI of Chromium engine, still there are no native borders on the sides.

Maybe you would wish to try out Vivaldi yourself and see if you have the same problem? It would be then easy for you to try to sort out the issue and it is a really good browser anyway, maybe you will switch.
It might me a bug in it though, so it would be good to have confirmation. I have direct contact to developers of this browser so I could provide them more detailed feedback on this issue. It would be great to have deeper understanding what is going on here...