Ubuntu
less package

less-pager does not update when window is resized

Bug #137244 reported by Klaus S. Madsen on 2007-09-04

Affects		Status	Importance	Assigned to	Milestone
	less (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

Binary package hint: less

In gutsy (updated as of today, less version 406-0): Open a shell (I use RXVT), start less with a large file. Then resize the window. Note that less doesn't update until a key is pressed in the window. I feisty less updates as soon as the resize is completed.

strace of a less window being resized:

Process 13775 attached - interrupt to quit
read(3, 0xbfb79baf, 1) = ? ERESTARTSYS (To be restarted)
--- SIGWINCH (Window changed) @ 0 (0) ---
rt_sigaction(SIGWINCH, {0x805b310, [WINCH], SA_RESTART}, {0x805b310, [WINCH], SA_RESTART}, 8) = 0
sigreturn() = ? (mask now [])
read(3,

Once a key is pressed, the following is appended to the trace:

read(3, "\33", 1) = 1
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig -icanon -echo ...}) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig -icanon -echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=35, ws_col=117, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(2, TIOCGWINSZ, {ws_row=35, ws_col=117, ws_xpixel=0, ws_ypixel=0}) = 0
write(1, "\33[H\33[2J\33[H<!DOCTYPE HTML PUBLIC "..., 1023) = 1023
write(1, " New Roman\", serif; font-size: 1"..., 1023) = 1023
time(NULL) = 1188901115
write(1, ": 14pt; so-language: zxx }\n "..., 544) = 544
read(3, "[", 1) = 1
write(1, "\r\33[KBrackets: \33[K[\10[\33[K]\10]\r\33[K", 30) = 30
write(1, "\r\33[K\33[7mNo bracket in top line "..., 51) = 51
read(3, "A", 1) = 1
write(1, "\33[35;1H", 7) = 7
write(1, "\7\r\33[K:\33[K", 9) = 9