I experience exactly the same problems as rubo77, and especially (but
not limited to) when opening multiple windows or menus in Thunderbird. I
also have exactly the same software/hardware configuration, except my
video card is Intel(R) HD Graphics 5000.
In my case the crash log is:
[128915.663] (WW) xf86CloseConsole: KDSETMODE failed: Input/output error
[128915.663] (WW) xf86CloseConsole: VT_GETMODE failed: Input/output error
[128915.663] (EE)
Fatal server error:
[128915.663] (EE) xf86CloseConsole: VT_ACTIVATE failed: Input/output error
[128915.663] (EE)
[128915.663] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[128915.663] (EE) Please also check the log file at "/var/log/Xorg.1.log" for
additional information.
[128915.663] (EE)
[128915.663] (EE)
[128915.663] (EE) Backtrace:
[128915.665] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x7f5876bfb556]
[128915.665] (EE) 1: /usr/bin/X (0x7f5876a48000+0x1b7749) [0x7f5876bff749]
[128915.666] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f587470e000+0x352f0)
[0x7f58747432f0]
[128915.666] (EE) 3: /usr/bin/X (0x7f5876a48000+0x1be015) [0x7f5876c06015]
[128915.666] (EE) 4: /usr/bin/X (CloseWellKnownConnections+0x2f)
[0x7f5876bfc49f]
[128915.666] (EE) 5: /usr/bin/X (0x7f5876a48000+0x1bf6f9) [0x7f5876c076f9]
[128915.666] (EE) 6: /usr/bin/X (0x7f5876a48000+0x1c051d) [0x7f5876c0851d]
[128915.666] (EE) 7: /usr/bin/X (0x7f5876a48000+0xbd801) [0x7f5876b05801]
[128915.666] (EE) 8: /usr/bin/X (xf86CloseConsole+0x153) [0x7f5876b06123]
[128915.666] (EE) 9: /usr/bin/X (ddxGiveUp+0x75) [0x7f5876ae1245]
[128915.666] (EE) 10: /usr/bin/X (0x7f5876a48000+0x5c539) [0x7f5876aa4539]
[128915.666] (EE) 11: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf0)
[0x7f587472ea40]
[128915.666] (EE) 12: /usr/bin/X (0x7f5876a48000+0x4662e) [0x7f5876a8e62e]
[128915.666] (EE)
[128915.666] (EE) Segmentation fault at address 0x98
[128915.666] (EE)
FatalError re-entered, aborting
[128915.666] (EE) Caught signal 11 (Segmentation fault). Server aborting
[128915.666] (EE)
** Summary changed:
- lightdm crashes on window open in Ubuntu 15.10 Yoga 2 Pro
+ lightdm crashes on window open in Ubuntu 15.10 intel
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https://bugs.launchpad.net/bugs/1509846
Title:
lightdm crashes on window open in Ubuntu 15.10 intel
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