[Bug 20066] New: slowness in gnome-terminal

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

http://bugs.freedesktop.org/show_bug.cgi?id=20066

           Summary: slowness in gnome-terminal
           Product: xorg
           Version: 7.4
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: debian-E6TheL+NHo3k1uMJSBkQmQ@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Nouveau is generally fast but not when it comes to gnome-terminal.

Things like opening a new tab, maximizing the window, restoring its size,
switching to a desktop with a gnome-terminal on it... take a couple of seconds.

The more the window is big, the more it's slow.

But it disappears when the gnome-terminal is minimized (reduced in the
taskbar). Switching desktops is then instantaneous.

The worst is when I maximize it vertically and then open a new tab. X seems
like frozen, thought I can still move the mouse but clicking has no effect.

It doesn't happen with xterm, so I guess gnome-terminal is using rendering
paths that are not accelerated in nouveau.

The card is a 8400M GS plugged to a 1280x800 LVDS, without any external screen.

As accidentally discovered with bug #20065, it doesn't happen in ShadowFB
NoAccel mode.

I'm quite puzzled about what information I could give you now. Or maybe the bug
is know and this bug will remain open until it's fixed.

Regards


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