Hi , I done a bisect the git xf86-video-intel 
and here is the results:
--------------
drv-intel
bad vo xv:
HEAD is now at 04130ac... Fix i915 rendering for tiled buffer
version 1

bad vo xv:
88f8b688e2316ae4a1f7485f0010ce90de54783a
HEAD is now at 88f8b68... Fix some physical address handling for >4GB
addresses
verison 2

bad vo xv:
HEAD is now at 4359df9... Fix tiling and fb compression defaults for 965
(not yet fully supported).
version 5

bad vo xv:
HEAD is now at ca593a5... FBC and tiling changes
version 6

good:
8798ef11321ee6957919279076758d47ad956cf3
HEAD is now at 8798ef1... Merge branch 'master' into fbc
version 4

good:
HEAD is now at 8919b22... Re-add tiling kludge, but only for 965
version 3

good:
3c552af65d28fafec1d09484a8914b690b961349
Update documentation and bump driver version to 2.1.0.

and xorg diff of last good and first bad Xorg.log

-- 
Sérgio M. B.
15c15
< (==) Log file: "/var/log/Xorg.0.log.good", Time: Sun Jul 29 19:19:26 2007
---
> (==) Log file: "/var/log/Xorg.0.log.bad", Time: Sun Jul 29 19:15:14 2007
462a463
> (II) intel(0): fbc disabled
658a660,662
> (II) intel(0): Framebuffer compression enabled, forcing tiling on.
> (**) intel(0): Framebuffer compression enabled
> (**) intel(0): Tiling enabled
660a665
> (II) intel(0): Framebuffer compression enabled
665,668c670,675
< (II) intel(0): 0x00020000-0x00029fff: HW cursors (40 kB, 0x1f820000 physical)
< (II) intel(0): 0x0002a000-0x00031fff: logical 3D context (32 kB)
< (II) intel(0): 0x00032000-0x00032fff: overlay registers (4 kB, 0x1f832000 physical)
< (II) intel(0): 0x00040000-0x01837fff: front buffer (24544 kB)
---
> (II) intel(0): 0x00020000-0x0061ffff: compressed frame buffer (6144 kB, 0x1f820000 physical)
> (II) intel(0): 0x00620000-0x00620fff: compressed ll buffer (4 kB, 0x1fe20000 physical)
> (II) intel(0): 0x00621000-0x0062afff: HW cursors (40 kB, 0x1fe21000 physical)
> (II) intel(0): 0x0062b000-0x00632fff: logical 3D context (32 kB)
> (II) intel(0): 0x00633000-0x00633fff: overlay registers (4 kB, 0x1fe33000 physical)
> (II) intel(0): 0x00634000-0x00643fff: xaa scratch (64 kB)
670,673c677,680
< (II) intel(0): 0x01838000-0x01847fff: xaa scratch (64 kB)
< (II) intel(0): 0x01c00000-0x01ffffff: back buffer (4096 kB)
< (II) intel(0): 0x02000000-0x023fffff: depth buffer (4096 kB)
< (II) intel(0): 0x02400000-0x043fffff: DRI memory manager (32768 kB)
---
> (II) intel(0): 0x00800000-0x00bfffff: back buffer (4096 kB)
> (II) intel(0): 0x00c00000-0x00ffffff: depth buffer (4096 kB)
> (II) intel(0): 0x02000000-0x03ffffff: front buffer (24544 kB)
> (II) intel(0): 0x04000000-0x05ffffff: DRI memory manager (32768 kB)
675c682
< (II) intel(0): front buffer is not tiled
---
> (II) intel(0): front buffer is tiled
689,691c696,698
< (II) intel(0): [drm] added 8192 byte SAREA at 0xe03ea000
< (II) intel(0): [drm] mapped SAREA 0xe03ea000 to 0xb7f6b000
< (II) intel(0): [drm] framebuffer handle = 0xc0040000
---
> (II) intel(0): [drm] added 8192 byte SAREA at 0xe0105000
> (II) intel(0): [drm] mapped SAREA 0xe0105000 to 0xb7f6d000
> (II) intel(0): [drm] framebuffer handle = 0xc2000000
697,699c704,706
< (II) intel(0): [drm] Front Buffer = 0x28008000
< (II) intel(0): [drm] Back Buffer = 0xc1c00000
< (II) intel(0): [drm] Depth Buffer = 0xc2000000
---
> (II) intel(0): [drm] Front Buffer = 0x28400000
> (II) intel(0): [drm] Back Buffer = 0xc0800000
> (II) intel(0): [drm] Depth Buffer = 0xc0c00000
718,721c725,727
< (II) intel(0): xf86BindGARTMemory: bind key 0 at 0x007bf000 (pgoffset 1983)
< (II) intel(0): xf86BindGARTMemory: bind key 1 at 0x01838000 (pgoffset 6200)
< (II) intel(0): xf86BindGARTMemory: bind key 2 at 0x01c00000 (pgoffset 7168)
< (II) intel(0): xf86BindGARTMemory: bind key 3 at 0x02000000 (pgoffset 8192)
---
> (II) intel(0): xf86BindGARTMemory: bind key 1 at 0x00800000 (pgoffset 2048)
> (II) intel(0): xf86BindGARTMemory: bind key 2 at 0x00c00000 (pgoffset 3072)
> (II) intel(0): xf86BindGARTMemory: bind key 0 at 0x02000000 (pgoffset 8192)
723a730
> (II) intel(0): fbc disabled
825a833,841
> Synaptics DeviceOff called
> (II) intel(0): [drm] removed 1 reserved context for kernel
> (II) intel(0): [drm] unmapping 8192 bytes of SAREA 0xe0105000 at 0xb7f6d000
> (EE) intel(0): I830 Vblank Pipe Setup Failed 0
> (EE) intel(0): I830 Vblank Pipe Setup Failed 0
> (EE) intel(0): I830 Vblank Pipe Setup Failed 0
> (II) intel(0): xf86UnbindGARTMemory: unbind key 1
> (II) intel(0): xf86UnbindGARTMemory: unbind key 2
> (II) intel(0): xf86UnbindGARTMemory: unbind key 0

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