Comment 21 for bug 567696

T510

The same bug

[mi] EQ overflowing. The server is probably stuck in an infinite loop.

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x4a3258]
1: /usr/bin/X (mieqEnqueue+0x1f4) [0x4a2ad4]
2: /usr/bin/X (xf86PostMotionEventP+0xc4) [0x47ceb4]
3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fe44b604000+0x53cf) [0x7fe44b6093cf]
4: /usr/bin/X (0x400000+0x6fcb7) [0x46fcb7]
5: /usr/bin/X (0x400000+0x11d1d3) [0x51d1d3]
6: /lib/libpthread.so.0 (0x7fe450723000+0xf8f0) [0x7fe4507328f0]
7: /lib/libc.so.6 (ioctl+0x7) [0x7fe44f4da187]
8: /lib/libdrm.so.2 (drmIoctl+0x28) [0x7fe44da8b5b8]
9: /lib/libdrm.so.2 (drmCommandWrite+0x1b) [0x7fe44da8b83b]
10: /lib/libdrm_nouveau.so.1 (0x7fe44d44d000+0x2f7d) [0x7fe44d44ff7d]
11: /lib/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xfc) [0x7fe44d4501bc]
12: /lib/libdrm_nouveau.so.1 (0x7fe44d44d000+0x2166) [0x7fe44d44f166]
13: /lib/libdrm_nouveau.so.1 (nouveau_pushbuf_flush+0x29c) [0x7fe44d44f4fc]
14: /usr/lib/xorg/modules/libexa.so (0x7fe44c5a8000+0x9555) [0x7fe44c5b1555]
15: /usr/lib/xorg/modules/libexa.so (0x7fe44c5a8000+0xa0ea) [0x7fe44c5b20ea]
16: /usr/bin/X (0x400000+0xd8a5b) [0x4d8a5b]
17: /usr/bin/X (0x400000+0x2ebb4) [0x42ebb4]
18: /usr/bin/X (0x400000+0x30c3c) [0x430c3c]

How to downgrading to gdm 2.30.0-0ubuntu5 ?

I am using 2.30.2.is.2.30.0-0ubuntu4 now