Disregard previous comment, I had removed the xorg xonf file to debug and forgotten to add rotate in xorg.conf.
The following is the correct output of ltrace:
ltrace xrandr -o left
__libc_start_main(0x804bc40, 3, 0xbfd74354, 0x80511c0, 0x8051220 <unfinished
...>
strcmp("--rate", "-o")
= -1
strcmp("--refresh", "-o")
= -1
strcmp("--version", "-o")
= -1
strcmp("--screen", "-o")
= -1
strcmp("--query", "-o")
= -1
strtol(0xbfd7539f, 0xbfd74204, 10, 0xb77cbc85, 5)
= 0
strcmp("normal", "left")
= 1
strcmp("left", "left")
= 0
XOpenDisplay(NULL)
= 0x0999e008
XRRQueryExtension(0x999e008, 0xbfd7421c, 0xbfd74218, 0xb77cbc85, 5)
= 1
XRRQueryVersion(0x999e008, 0xbfd7420c, 0xbfd74208, 0xb77cbc85, 5)
= 1
XRRGetScreenInfo(0x999e008, 637, 0xbfd74208, 0xb77cbc85, 5)
= 0x99ab140
XRRConfigCurrentConfiguration(0x99ab140, 0xbfd7422a, 0xbfd74208, 0xb77cbc85, 5)
= 0
XRRConfigSizes(0x99ab140, 0xbfd74224, 0xbfd74208, 0xb77cbc85, 5)
= 0x99ab16c
XRRConfigCurrentRate(0x99ab140, 0xbfd74224, 0xbfd74208, 0xb77cbc85, 5)
= 50
XRRConfigRotations(0x99ab140, 0xbfd7422a, 0xbfd74208, 0xb77cbc85, 5)
= 15
XSelectInput(0x999e008, 637, 131072, 0xb77cbc85, 5)
= 1
XRRSelectInput(0x999e008, 637, 1, 0xb77cbc85, 5)
= 0
XRRSetScreenConfigAndRate(0x999e008, 0x99ab140, 637, 0, 2X Error of failed
request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 154 (RANDR)
Minor opcode of failed request: 2 (RRSetScreenConfig)
Value in failed request: 0x4b0
Serial number of failed request: 14
Current serial number in output stream: 14
<unfinished ...>
+++ exited (status 1) +++
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https://bugs.launchpad.net/bugs/765850
Title:
unable to rotate display left or right
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