emacs segfaults when run under X (but not in console)

$ emacs
Fatal error 11: Segmentation fault
Backtrace:
emacs[0x4f74cb]
emacs[0x4dcf3e]
emacs[0x4f611e]
emacs[0x4f6283]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x10330)[0x7ffbb9c38330]
emacs[0x46f9e2]
emacs[0x5b5abe]
emacs[0x54fe5e]
emacs[0x58494b]
emacs[0x54fa0f]
emacs[0x54ee2d]
emacs[0x54f1f2]
emacs[0x552511]
emacs[0x5854f8]
emacs[0x54fa0f]
emacs[0x54fd1b]
emacs[0x58494b]
emacs[0x54fa0f]
emacs[0x54fd1b]
emacs[0x58494b]
emacs[0x54fd1b]
emacs[0x54f5a3]
emacs[0x552511]
emacs[0x5854f8]
emacs[0x54fd1b]
emacs[0x58494b]
emacs[0x54ee2d]
emacs[0x54f1f2]
emacs[0x5525fd]
emacs[0x54e3e3]
emacs[0x4dd446]
emacs[0x54e2be]
emacs[0x4e1bff]
emacs[0x4e1f14]
emacs[0x4171d5]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7ffbb9884f45]
emacs[0x417cee]
Ошибка сегментирования (сделан дамп памяти)
$ dpkg -l emacs\*
Желаемый=неизвестно[u]/установить[i]/удалить[r]/вычистить[p]/зафиксировать[h]
| Состояние=не[n]/установлен[i]/настроен[c]/распакован[U]/частично настроен[F]/
            частично установлен[H]/trig-aWait/Trig-pend
|/ Ошибка?=(нет)/требуется переустановка[R] (верхний регистр
в полях состояния и ошибки указывает на ненормальную ситуацию)
||/ Имя Версия Архитектура Описание
+++-=============================-===================-===================-================================================================
ii emacs 45.0ubuntu1 all GNU Emacs editor (metapackage)
un emacs22-common <нет> <нет> (описание недоступно)
ii emacs24 24.3+1-2ubuntu1 amd64 GNU Emacs editor (with GTK+ user interface)
ii emacs24-bin-common 24.3+1-2ubuntu1 amd64 GNU Emacs editor's shared, architecture dependent files
ii emacs24-common 24.3+1-2ubuntu1 all GNU Emacs editor's shared, architecture independent infrastructu
ii emacs24-common-non-dfsg 24.3+1-1 all GNU Emacs common non-DFSG items, including the core documentatio
ii emacs24-dbg 24.3+1-2ubuntu1 amd64 Debugging symbols for emacs24
un emacs24-el <нет> <нет> (описание недоступно)
un emacs24-lucid <нет> <нет> (описание недоступно)
un emacs24-nox <нет> <нет> (описание недоступно)
un emacsen <нет> <нет> (описание недоступно)
ii emacsen-common 2.0.7 all Common facilities for all emacsen
$ emacs --version
GNU Emacs 24.3.1
Copyright (C) 2013 Free Software Foundation, Inc.
GNU Emacs comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of Emacs
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.
$

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: emacs 45.0ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-68.76~14.04.1-generic 3.19.8-ckt22
Uname: Linux 3.19.0-68-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Sep 15 18:49:24 2016
InstallationDate: Installed on 2015-09-05 (375 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: emacs-defaults
UpgradeStatus: No upgrade log present (probably fresh install)