In XorgLogOld.txt:
[ 45.305] (EE) BUG: triggered 'if (!(event->device_event.flags & (1 << 5)))'
[ 45.305] (EE) BUG: ../../dix/touch.c:628 in TouchConvertToPointerEvent()
[ 45.305] (EE) Non-emulating touch event
[ 45.305] (EE)
[ 45.305] (EE) Backtrace:
[ 45.308] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7f461ba9f8c6]
[ 45.308] (EE) 1: /usr/bin/X (0x7f461b8f7000+0x7db0f) [0x7f461b974b0f]
[ 45.308] (EE) 2: /usr/bin/X (0x7f461b8f7000+0x137da9) [0x7f461ba2eda9]
[ 45.308] (EE) 3: /usr/bin/X (0x7f461b8f7000+0x137757) [0x7f461ba2e757]
[ 45.308] (EE) 4: /usr/bin/X (0x7f461b8f7000+0x13a2c3) [0x7f461ba312c3]
[ 45.308] (EE) 5: /usr/bin/X (0x7f461b8f7000+0x15b97f) [0x7f461ba5297f]
[ 45.308] (EE) 6: /usr/bin/X (mieqProcessDeviceEvent+0x1b5) [0x7f461ba81075]
[ 45.308] (EE) 7: /usr/bin/X (mieqProcessInputEvents+0xf8) [0x7f461ba81198]
[ 45.308] (EE) 8: /usr/bin/X (ProcessInputEvents+0x9) [0x7f461b98a6b9]
[ 45.309] (EE) 9: /usr/bin/X (0x7f461b8f7000+0x55846) [0x7f461b94c846]
[ 45.309] (EE) 10: /usr/bin/X (0x7f461b8f7000+0x4455a) [0x7f461b93b55a]
[ 45.309] (EE) 11: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed)
[0x7f46198a476d]
[ 45.309] (EE) 12: /usr/bin/X (0x7f461b8f7000+0x4489d) [0x7f461b93b89d]
[ 45.309] (EE)
** Tags added: dist-upgrade
** Changed in: xorg (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1046675
Title:
macbook air 4,1 trackpad does not work on upgrade to quantal from
precise
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