[Bug 90725] Display chunks with xorg intel driver with Accel & when using swap space

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90725

--- Comment #23 from Fab Stz <fabstz-it at yahoo.fr> ---
(In reply to Chris Wilson from comment #22)
> So, setting swizzle unknown is not a good test. Probably, something like
> is better for testing.


# cat /sys/kernel/debug/dri/0/i915_swizzle_info                                 
bit6 swizzle for X-tiling = bit9/bit10
bit6 swizzle for Y-tiling = bit9
DDC = 0x00200010
DDC2 = 0x00200020
C0DRB3 = 0x0020
C1DRB3 = 0x0010
L-shaped memory detected


(1)* xf86 git + kernel patch (comment 22 only) -> kdm screen is ugly (I didn't
test further)

(2)* xf86 git with patch for wc_mmap (comment 11) + kernel patch (comment 22
only) -> kdm ok, swapping ok, but at some time I still have display issues, I
guess when a program whose memory was put to swap space

(3)* xf86 git with patch for detiling (comment 11) + kernel patch (comment 22
only) -> kdm ok, swapping ok, no problem faced at any time

I'll stay with (3) for some time to see how it behaves

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