Repro (intermittent):
$ xrandr -q
zsh: segmentation fault (core dumped) xrandr -q
When xrandr does not crash, it variously returns one of two results
(note the difference for second screen, DisplayPort-0):
$ xrandr -q
Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 16384 x 16384
LVDS connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x
194mm
1920x1080 60.2*+ 40.1
1680x1050 60.0
1400x1050 60.0
1280x1024 59.9
1440x900 59.9
1280x960 59.9
1280x854 59.9
1280x800 59.8
1280x720 59.9
1152x768 59.8
1024x768 59.9
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
DisplayPort-0 connected 2560x1440+1920+0 (normal left inverted right x axis y
axis) 0mm x 0mm
1024x768 60.0
800x600 60.3 56.2
848x480 60.0
640x480 59.9
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected (normal left inverted right x axis y axis)
2560x1440 (0x2e2) 241.5MHz
h: width 2560 start 2608 end 2640 total 2720 skew 0 clock 88.8KHz
v: height 1440 start 1443 end 1448 total 1481 clock 60.0Hz
$ xrandr -q
Screen 0: minimum 320 x 200, current 4480 x 1440, maximum 16384 x 16384
LVDS connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x
194mm
1920x1080 60.2*+ 40.1
1680x1050 60.0
1400x1050 60.0
1280x1024 59.9
1440x900 59.9
1280x960 59.9
1280x854 59.9
1280x800 59.8
1280x720 59.9
1152x768 59.8
1024x768 59.9
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
DisplayPort-0 connected 2560x1440+1920+0 (normal left inverted right x axis y
axis) 597mm x 336mm
2560x1440 60.0*+
1920x1200 59.9
1920x1080 60.0 60.0 50.0 59.9 24.0 24.0
1920x1080i 60.1 50.0 60.0
1600x1200 60.0
1680x1050 60.0
1280x1024 75.0 60.0
1280x800 59.8
1152x864 75.0
1280x720 60.0 50.0 59.9
1440x576i 50.1
1024x768 75.1 60.0
1440x480i 60.1 60.1
800x600 75.0 60.3
720x576 50.0
720x480 60.0 59.9
640x480 75.0 60.0 59.9
720x400 70.1
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected (normal left inverted right x axis y axis)
$ uname -a
Linux Ubu14Msw4-M4800 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
Ubuntu 14.04.1 LTS
$ dmesg | tail
[ 226.671770] xrandr[2361]: segfault at 38 ip 00000000004027ae sp
00007fff63eb7e60 error 4 in xrandr[400000+d000]
[ 1566.312068] [drm:si_dpm_set_power_state] *ERROR* si_set_sw_state failed
[ 1978.902140] xrandr[4990]: segfault at 38 ip 0000000000402829 sp
00007fff51114720 error 4 in xrandr[400000+d000]
[ 2206.271566] xrandr[5890]: segfault at 38 ip 0000000000402829 sp
00007fff2af7c580 error 4 in xrandr[400000+d000]
[ 2568.830335] xrandr[6049]: segfault at 38 ip 0000000000402829 sp
00007fffd3919610 error 4 in xrandr[400000+d000]
[ 2572.286594] xrandr[6054]: segfault at 38 ip 0000000000402829 sp
00007fffae5b4460 error 4 in xrandr[400000+d000]
[ 2580.897760] xrandr[6067]: segfault at 10 ip 0000000000402ee6 sp
00007fff96869490 error 4 in xrandr[400000+d000]
[ 2587.574203] xrandr[6094]: segfault at 38 ip 0000000000402829 sp
00007fff29572620 error 4 in xrandr[400000+d000]
[ 3001.398366] xrandr[6462]: segfault at 38 ip 0000000000402829 sp
00007fff5dc471f0 error 4 in xrandr[400000+d000]
[ 3109.594677] xrandr[6565]: segfault at 38 ip 0000000000402829 sp
00007fff534df710 error 4 in xrandr[400000+d000]
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to x11-xserver-utils in Ubuntu.
https://bugs.launchpad.net/bugs/1340716
Title:
segfault at 8 ip 08051738 sp bf97f4e0 error 4 in xrandr[8048000+c000]
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