@toes314 said in Opera start up window size:

The --start-maximized option doesn't quite set the window to maximum size, but it is very close

What do you mean with this bit?
That parameter makes opera start in a maximized window and the only thing I see here, besides opera, is my bottom bar (panel).

I meant pretty much what I said. When I tried that option, the window was slightly smaller than it would have been if it were truly maximized, and, the icon on the window frame which when clicked is supposed to maximize the window, was still present on the frame, and when clicked, it did truly maximize the window.

However, for whatever reason, it sometimes seems to take a somewhat surprising amount of time for all the "background" processes associated with opera to stop. When I make sure that they have stopped before using the --start-maximized option, then the option has the desired affect. That's why I'm very glad that you made the point about closing opera completely. Even though the opera window was closed, your comment made me think about possible "background" processes.

I could be miss-recollecting, but I rather thought that quite some time ago, Opera was ostensibly built from purely hand-coded assembly language, and as such was impressively speedy. I'm still not sure how I feel about the more recent and "Chromium-ed" form of Opera.

The --start-maximized option doesn't quite set the window to maximum size, but it is very close

What do you mean with this bit?
That parameter makes opera start in a maximized window and the only thing I see here, besides opera, is my bottom bar (panel).

The --window-size parameter works for me, on all my chromium browsers. Did you close opera completely before trying it?

Also, can you please post what exactly are you trying to do?

As I mentioned in my second message I would like to set the window to a specific size.

As it has turned out, there were still some background opera processes running after I closed the opera window. As you've indicated the --window-size parameter does seem to work when opera is completely shutdown. That's to you and everyone for all their help!

Also, can you please post what exactly are you trying to do?

--geometry:xxx*yyy

AFAIK, the X Windows argument is more like

-geometry 200x20

and indeed that works when starting something like xterm. I tried that and window-size with opera and neither worked. Perhaps I should mention that in the Linux environment which I use, the opera that is found first on the path is a shell script. So I tracked down the binary, ran that directly, passing the arguments to it.

If there is no official reference on the opera command line options, I'll probably add an xdotool invocation to the opera script and handle it that way.

Thanks for the thoughts!

And yes, the --geometry:x*y example did not work for me.

opera --help

gets this output:

---------------------------------------------------------------------------------------
Opera 63.0.3368.66 Stable
Features available through command-line switches:
        --with-feature:better-address-bar [Enabled by default: true]
        --with-feature:captive-portal-interstitial [Enabled by default: true]
        --with-feature:chrome-extensions-one-click-install-policy [Enabled by default: true]
        --with-feature:chromium-ua-compatibility [Enabled by default: false]
        --with-feature:crypto-wallet [Enabled by default: true]
        --with-feature:crypto-wallet-ios-instructions [Enabled by default: true]
        --with-feature:crypto-wallet-new-server [Enabled by default: true]
        --with-feature:lookalike-url-navigation-suggestions [Enabled by default: true]
        --with-feature:notification-overlay-on-taskbar [Enabled by default: false]
        --with-feature:partner-bookmarks-opt-out [Enabled by default: true]
        --with-feature:reborn-3-dropdown [Enabled by default: false]
        --with-feature:reborn-communicator-show-permissions [Enabled by default: true]
        --with-feature:search-results-extensions-block-v2 [Enabled by default: true]
        --with-feature:sd-flicker-buster [Enabled by default: false]
        --with-feature:toolkit-bookmarks [Enabled by default: false]
        --with-feature:update-recovery-page [Enabled by default: true]
        --with-feature:wallpapers-api [Enabled by default: true]
        --with-feature:warn-on-closing-multiple-tabs [Enabled by default: true]
        --with-feature:yandex-zen-news [Enabled by default: false]
        --with-feature:zoom-indicator [Enabled by default: true]
        --with-feature:personal-news-notifications [Enabled by default: true]
---------------------------------------------------------------------------------------

Is there some authoritative document on opera's command line options?