[Bug 100306] System randomly freezes or crashes to the login screen, glitches until rebooted

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100306

--- Comment #32 from MirceaKitsune <sonichedgehog_hyperblast00 at yahoo.com> ---
Thought I'd also post another detail that might be useful, I'm not sure how
much it relates to the freeze but better be safe than sorry; I have the
following two environment variables added to my ~/.profile file, which
basically tell Mesa to post errors to a log file:

export MESA_DEBUG=1
export MESA_LOG_FILE=/home/mircea/.mesa_stderr

There's one reoccurring line which keeps getting printed in there. It's added
periodically with no side effects, but I imagine it could still have some
relation to the trigger of the freeze:

Mesa: User error: GL_INVALID_OPERATION in glTexSubImage2D(invalid texture
image)

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