No XFCE anymore in my old IBM T23 after upgrading to latest current (kernel 3.14.3 and the rest).
Changing video driver from vesa to savage doesn't help.
Here are the error (EE) sections from Xorg.0.log :
1. Using vesa driver:
[ 1398.344] (EE)
[ 1398.344] (EE) Backtrace:
[ 1398.344] (EE) 0: /usr/bin/X (xorg_backtrace+0x49) [0x81d6099]
[ 1398.345] (EE) 1: /usr/bin/X (0x8048000+0x191ac4) [0x81d9ac4]
[ 1398.345] (EE) 2: linux-gate.so.1 (__kernel_rt_sigreturn+0x0) [0xffffe40c]
[ 1398.345] (EE) 3: /lib/libc.so.6 (memcpy+0x27) [0xb73305f7]
[ 1398.345] (EE) 4: /usr/lib/xorg/modules/libshadow.so (shadowUpdatePacked+0x18c) [0xb76b4c2c]
[ 1398.345] (EE) 5: /usr/lib/xorg/modules/drivers/vesa_drv.so (0xb76e7000+0x25a3) [0xb76e95a3]
[ 1398.346] (EE) 6: /usr/lib/xorg/modules/libshadow.so (0xb76b3000+0x1482) [0xb76b4482]
[ 1398.346] (EE) 7: /usr/bin/X (BlockHandler+0xc8) [0x807d998]
[ 1398.346] (EE) 8: /usr/bin/X (WaitForSomething+0xf8) [0x81d3598]
[ 1398.346] (EE) 9: /usr/bin/X (0x8048000+0x3129e) [0x807929e]
[ 1398.346] (EE) 10: /usr/bin/X (0x8048000+0x1f69a) [0x806769a]
[ 1398.347] (EE) 11: /lib/libc.so.6 (__libc_start_main+0xf3) [0xb72c6963]
[ 1398.347] (EE) 12: /usr/bin/X (0x8048000+0x1fa69) [0x8067a69]
[ 1398.347] (EE)
[ 1398.347] (EE) Bus error at address 0xb6197000
[ 1398.347] (EE)
Fatal server error:
[ 1398.348] (EE) Caught signal 7 (Bus error). Server aborting
[ 1398.348] (EE)
[ 1398.348] (EE)
Please consult the The X.Org Foundation support at
http://wiki.x.org for help.
[ 1398.348] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 1398.348] (EE)
[ 1398.808] (EE) Server terminated with error (1). Closing log file.
2. Using savage driver
[ 1267.955] (EE)
[ 1267.956] (EE) Backtrace:
[ 1268.018] (EE) 0: /usr/bin/X (xorg_backtrace+0x49) [0x81d6099]
[ 1268.018] (EE) 1: /usr/bin/X (0x8048000+0x191ac4) [0x81d9ac4]
[ 1268.018] (EE) 2: linux-gate.so.1 (__kernel_rt_sigreturn+0x0) [0xffffe40c]
[ 1268.019] (EE) 3: /usr/lib/libpixman-1.so.0 (0xb75fa000+0x71d00) [0xb766bd00]
[ 1268.019] (EE) 4: /usr/lib/libpixman-1.so.0 (0xb75fa000+0x575ac) [0xb76515ac]
[ 1268.019] (EE) 5: /usr/lib/libpixman-1.so.0 (pixman_fill+0x5d) [0xb760029d]
[ 1268.019] (EE) 6: /usr/lib/xorg/modules/libfb.so (fbFill+0x2f5) [0xb302b7b5]
[ 1268.019] (EE) 7: /usr/lib/xorg/modules/libfb.so (fbPolyFillRect+0x1b8) [0xb302bfe8]
[ 1268.020] (EE) 8: /usr/lib/xorg/modules/libexa.so (0xb3000000+0x11316) [0xb3011316]
[ 1268.020] (EE) 9: /usr/lib/xorg/modules/libexa.so (0xb3000000+0xa7b1) [0xb300a7b1]
[ 1268.020] (EE) 10: /usr/bin/X (miPaintWindow+0x208) [0x81b6e08]
[ 1268.020] (EE) 11: /usr/bin/X (miWindowExposures+0x20c) [0x81b777c]
[ 1268.020] (EE) 12: /usr/bin/X (DRIWindowExposures+0x8c) [0x819fa5c]
[ 1268.021] (EE) 13: /usr/bin/X (0x8048000+0x8cd84) [0x80d4d84]
[ 1268.021] (EE) 14: /usr/bin/X (MapWindow+0x263) [0x80a7b43]
[ 1268.021] (EE) 15: /usr/bin/X (InitRootWindow+0x124) [0x80a7c94]
[ 1268.021] (EE) 16: /usr/bin/X (0x8048000+0x1f620) [0x8067620]
[ 1268.022] (EE) 17: /lib/libc.so.6 (__libc_start_main+0xf3) [0xb7317963]
[ 1268.022] (EE) 18: /usr/bin/X (0x8048000+0x1fa69) [0x8067a69]
[ 1268.022] (EE)
[ 1268.022] (EE) Bus error at address 0xb30bc000
[ 1268.022] (EE)
Fatal server error:
[ 1268.023] (EE) Caught signal 7 (Bus error). Server aborting
[ 1268.023] (EE)
[ 1268.023] (EE)
Please consult the The X.Org Foundation support at
http://wiki.x.org for help.
[ 1268.023] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 1268.023] (EE)
[ 1268.122] (EE) Server terminated with error (1). Closing log file.