[Bug 33963] 6.14.0: flickering on desktop effects

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=33963

--- Comment #6 from Luca Tettamanti <kronos.it at gmail.com> 2011-02-08 13:12:45 PST ---
(In reply to comment #5)
> I think the following bugs are probably related:
> bug 33929
> bug 33952
> bug 33943
> bug 33963

I disagree, I don't see any corruption, just that strange flickering effect and
only when an effect is running.
The original bug report contains a typo: it does *not* seem related to a bad
mode or a PLL issue.

The bisection has been inconclusive, 6.13.0 locks up the machine, 6.13.1 shows
the flickering; in the middle I encountered a crash in DRI2CopyRegion.

The good driver is marked 6.13.99; is it possible that an external component
(X, or libdrm) makes the difference at build time?
Yes, I did a make clean before testing :)

This is the log (lock up is marked as good under the assumption that the
working driver was compiled _after_ that point), just in case:
There are only 'skip'ped commits left to test.
The first bad commit could be any of:
ea37d24b1b6d4cbcf73e680846de25b72af216e3
f7a91ece264af9f3fd2fc18e99aefcda93ce9f5c
800cb2088fec698d0626063a9ab198ff534938c0
We cannot bisect more!

git bisect start
# good: [fb7911912e60b2cdbc2152b96847775b767ca3ef] bump version for release
git bisect good fb7911912e60b2cdbc2152b96847775b767ca3ef
# bad: [ad999e633ff41d27eed9d2c6535e163a7181b0bd] set version for release
git bisect bad ad999e633ff41d27eed9d2c6535e163a7181b0bd
# good: [766024dcc61c83490540910ce752f9bfe6dddba4] r3xx-r5xx: fix texturing
with small macrotiled pixmaps
git bisect good 766024dcc61c83490540910ce752f9bfe6dddba4
# good: [a2528a734c1d4e8639c49e5d222e3630a93ffbfd] r6xx/r7xx accel: remove some
duplicate emits and minor clean up
git bisect good a2528a734c1d4e8639c49e5d222e3630a93ffbfd
# skip: [f7a91ece264af9f3fd2fc18e99aefcda93ce9f5c] Convert x(c)alloc/xfree to
m/calloc/free.
git bisect skip f7a91ece264af9f3fd2fc18e99aefcda93ce9f5c
# bad: [800cb2088fec698d0626063a9ab198ff534938c0] DRI2: Fix up confusion
between windows and pixmaps.
git bisect bad 800cb2088fec698d0626063a9ab198ff534938c0
# good: [4651d77211b508cb6b76931807780e317f232220] radeon: fix depth 16 with
ums
git bisect good 4651d77211b508cb6b76931807780e317f232220
# skip: [ea37d24b1b6d4cbcf73e680846de25b72af216e3] radeon: fix support for 1.9
server master.
git bisect skip ea37d24b1b6d4cbcf73e680846de25b72af216e3
# good: [fdd8ecafd054f65842351aee6ee6fba7af6613b2] r6xx/r7xx: macro safety
fixes
git bisect good fdd8ecafd054f65842351aee6ee6fba7af6613b2

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