terminal scrolling glitches

[hdante]

Sometimes the terminal stops scrolling automatically it looks as if the terminal froze, without updating anymore. Only manually scrolling (eg, with a mouse or pressing enter) the terminal scrolls back to the last line.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-terminal 3.0.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Mon Oct 24 16:08:15 2011
ExecutablePath: /usr/bin/gnome-terminal
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)

[Pedro Villavicencio (pedro)]

thanks for the report, do you get the same if you use terminator (terminal emulator) or xterm ? that might be a vte issue.

[hdante (hdante)]

Bug does not happen on xterm

[hdante (hdante)]

To be more precise, I've been having another scrolling problem on other applications. When scrolling on xterm and gnome editor with page up and page down, sometimes a rectangle inside the window is not redrawn. In xterm, that rectangle stays black and in gedit, the text is not correctly updated. In both cases, a manual refresh is required to fix the problem.

[Len Fishler (pilot210)]

Not sure if it is same, but am having scrolling glitches similar to this, with similar work-around (ie. refresh cures it) using Unity 3D. Problem goes away with Unity 2D. Problem manifests with all applications tried that produce scroll-able window, also Chrome and Firefox browsers. My system is an HP NC6000 laptop. When glitch occurs, sometimes a rectangle is not redrawn, sometimes the shape is a torn rectangle (ie. portion of rectangle got shifted up, portion not shifted, in middle of window).

[hdante (hdante)]

Confirmed that problem goes away on unity 2D. Problem happens on utity and gnome shell.

[Mark Kennedy (mrmonkington)]

I can confirm the same redraw issues with gnome-terminal using gnome-shell. It's difficult to capture as taking a screenshot seems to trigger a redraw.

It only seems to happen when output would also trigger a scroll, but is not reliably reproducable so can't comfirm.

I too am using non-free nvidia drivers on amd64.

[Pedro Villavicencio (pedro)]

as said, is this reproducible with terminator? could you please try with it? this might be a vte issue.

[jdobry (jdobry)]

I have same issue. nVidia proprietary driver and G105M card
It can't depend to Unity, it is possible reproduce with Mint12
It looks like some problem with 3D accelerator.
It is NOT reproducible in "terminator"
Easiest way to reproduce:
"man" ---- use pgup/pgdown
"mc" ---- pres Ctrl+O few times or open "mcedit"

[Dan Woodard (dan-e-woodard)]

Same here.
Ubuntu 11.10 x86_64 gnome_shell
Nvidia 290.10
Quadro NVS 140M
No problems with xterm

[Joao Lencart e Silva (j-lencart)]

Same here,

The glitch is intermittent and difficult to reproduce.
No apparent problem with xterm

Ubuntu 11.10 x86_64 gnome 3
Nvidia GeForce 210 driver 280.13

[hdante (hdante)]

Reporting a bug in Ubuntu is like trying to have a serious conversation with /dev/null

[Launchpad Janitor (janitor)]

[Expired for gnome-terminal (Ubuntu) because there has been no activity for 60 days.]