Bug#912335: gnome-terminal: minor redraw issue when moving a window over the terminal

[Egmont Koblinger]

Hi,

Thanks for the screencast, I'll try to see if I can reproduce the bug based
on that. (I noticed the glitch at the right side of the test file, at the X
pattern too.)

> It is better to move the window slowly

Yes, that's what I did, pixel by pixel.

> handled by VTE like the box ones?

Yes, these diagonal lines (actually all in the U+2500 .. U+259F range) are
painted manually. As for the font, only its dimensions should be relevant.

> Note: I'm using the FVWM window manager, no desktop environment,
> and the NVIDIA driver (provided by the official Debian packages).

I have some ATI Radeon.

According to my memories from a loooooong time ago, there used to be two
nvidia drivers: an open-source non-accelerated and a closed-source
accelerated one, one called nv and the other called nvidia (not sure which
was which). I don't know if this is still the case. If so, do you happen to
know which one you're using?

Can you by any chance switch to the other one? And/or if you have another
video card built in to the motherboard (typically Intel on laptops, really
unsure about desktop), can you maybe try that?

Unfortunately I cannot remember at all how to switch between them, so
figuring out would be up to you.

At this point I cannot rule out the possibility of this being a bug in the
nvidia driver, or cairo, or somehow their interaction. But it also could be
a bug in VTE.

Thanks a lot,
egmont
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