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I have two external monitors (both 1920x1200) connected to a laptop. I'm connecting to a Win10 (with also two monitors on its PC) via Remmina, with an *.rdp file supplied by Citrix Netscaler Gateway.

  • Every application that's maximized in the session takes all the space of both the displays and
  • centered dialogs/apps appear in the maximized center, i.e. are spread aside the physical middle of the two monitors.

That's bad.

  1. Can I convince Remmina to consider the two monitor setup on the remote system so that maximizing inside the session just uses one of the local displays?

  2. Can I convince Remmina to open new (centered) windows/dialogs centered on the first local display (without a Window Rule [see additional info below] for each and every)?
    [Solved implicitly if 1. is solved.]

  3. If 1. and/or 2. isn't possible natively I have another idea:
    Can I connect with two sessions, one using the first remote display and one using the second?

There's a Multi monitor button in Remmina's session toolbar. But it:

  • does nothing when activated in full-screen mode,
  • then scrambles my displays when switching from full-screen to windowed mode (and also back to full-screen mode) Multi monitor activated and switching from full-screen to window
  • and even terminates the connection without further notice when activated in windowed mode.

Additional information (for potential future seekers, readers, attempters)

At first I struggled to convince Remmina to take all space of both the external monitors for the session (including/overlapping the space of the local bottom panel). I managed this via:

  1. A Window Rule

    Created via Right-click Remmina's title bar ➔ More Actions ➔ Configure Special Window Settings.

    System Settings ➔ Window Management ➔ Window Rules

  2. Session toolbar

    • Toggle fullscreen mode (Default: Right-Ctrl+F, I changed that to Scroll+F since Ctrl+F is standard for Find in so many applications).
    • Toggle dynamic resolution update
Gerold Broser
  • 679

1 Answers1

3

I found out (by try and error, not via web searches or in the four-page[!, WTF?] User's guide) that the Multi monitor button in Remmina's session toolbar is ought to support exactly what I want: Maximizing windows inside the session to one display only.

So, apparently the screen scrambling and connection termination when using it is worth a bug report: Using 'Multi monitor' mode scrambles displays or even terminates connection.

UPDATE

I use xfreerdp meanwhile, which is fine but brought up another issue: How to set a shell script as KDE file association.

For those who like to stick to Remmina and also face the "connection termination on multi-monitor toggle in windowed mode" issue here's what I always do to avoid it:

  • Switch to fullscreen mode ().

  • Activate multi-monitor (). Nothing happens/changes on the displays, just continue...

  • Switch to windowed mode (t.b.d.).

  • Switch to fullscreen mode again ().

  • Enjoy!

    (Well, at least partly here, since there are unused black ~1 cm stripes at top and bottom of my main display, which wastes space and also causes fonts to look craggy.)

Gerold Broser
  • 679