[Bug 77201] [855GM] Firefox textdisplay problems (partly or full blank lines) after update to xf86-video-intel-2.99.911

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77201

--- Comment #10 from Chris Wilson <chris at chris-wilson.co.uk> ---
git bisect is a tool to identify a commit that introduces a bug.

Start by cloning the xf86-video-intel.git repository,
$ git clone git://anongit.freedesktop.org/xorg/driver/xf86-video-intel
$ cd xf86-video-intel
$ ./autogen.sh --prefix=/usr
$ make && sudo make install

Next time you update your system pkg, it will overwrite our temporary install.
autogen is likely to complain about missing development packages, you will have
to query arch how best to install those.

Check that you can reproduce the bug.
$ git bisect start
$ git bisect bad
$ git checkout 2.99.910
$ make && sudo make install

Check that you cannot reproduce the bug
$ git bisect good

git will then select a commit roughly halfway between, you then
$ make && sudo make install

Retest, if the result is good:
$ git bisect good

and if bad (lack of lines being drawn):
$ git bisect bad

Repeat until git announces a winner.

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