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Bug 107593

Summary:	less doesn't page up well under gnome-terminal
Product:	[Retired] Red Hat Raw Hide	Reporter:	Brian Brock <bbrock>
Component:	vte	Assignee:	Behdad Esfahbod <behdad>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	1.0	CC:	caillon, mitr
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	0.12.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-07-27 21:40:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Brian Brock 2003-10-20 21:22:00 UTC

less displays some errors to stdout during scroll up, triggered by hitting the
"page up" key.  seems to happen with all LANG settings.

using:
gnome-terminal-2.4.0.1-1
less-378-11.1

For repeatable test, run `man bash` then hit the 'end' key to scroll to the end
of input.  Hit the 'page up' key to scroll back a page.  Output seems to
repeatedly display the top line of the display, writing a new line at a time
(containing the same string) without overwriting any lines at the top of the
screen with new output.  Reading a large file (more than displayed on a single
screen) with less causes identical symptoms.

I don't see this error at a linux text console outside of X, or in konsole.

Comment 1 Miloslav Trmac 2003-10-21 11:24:41 UTC

I don't see this with
less-378-11.1
gnome-terminal-2.4.0.1-1
man-1.5k-12

LANG="cs_CZ.UTF-8"
That said, it might be related to bug 91691.

Comment 2 Need Real Name 2004-09-23 09:57:29 UTC

I get this problem on Fedora Core 2.

$ rpm -q gnome-terminal less man
gnome-terminal-2.6.0-2
less-382-3
man-1.5m2-6

$ echo $LANG
en_GB.UTF-8

Comment 3 Ray Strode [halfline] 2004-09-23 14:10:23 UTC

Hi,

What version of VTE do you have?  Are you running Fedora Core 2, or
Fedora Core 3 test 2?

Thanks.

Comment 4 Brian Brock 2004-10-05 14:50:37 UTC

I also see this in RHEL 3, update 3.

gnome-terminal-2.2.2-1
vte-0.11.10-3
less-378-11

LANG="en_US.UTF-8"
SUPPORTED="en_US.UTF-8:en_US:en"
SYSFONT="latarcyrheb-sun16"


normally, I use konsole in RHEL.  gnome-terminal launched from command
line under konsole.  in the new gnome-terminal session, I ran `man
bash`, and see a long lag on writes when pgup'ing... mirrors symptoms
in original report.

Comment 5 Ivano Cristofolini 2005-01-31 08:25:07 UTC

I just found a workaround for this bug (which still exists in FC3).
Try adding the "-h0" option to less. To make it permanent, I added an
alias less='less -h0' in /etc/profile.d/less.sh and also added '-h0'
to the PAGER variable in /etc/man.config, to fix the man command as well.

Comment 6 Behdad Esfahbod 2006-07-27 21:40:47 UTC

This is already fixed in FC5.