[Wayland-bugs] [Bug 82748] permanently black screen on ThinkPad X200

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82748

--- Comment #11 from Pekka Paalanen <ppaalanen at gmail.com> ---
Michael, that sounds a bit strange to me. I do not know what is packaged in
libgl1-mesa-glx or libgl1-mesa-swx11, are these packages mutually exclusive?
Does one contain/depend on hardware drivers, and the other forces them to be
uninstalled?

GLX is purely an X11 thing, and does not really say anything about software vs.
hw-accelerated, it can do both AFAIU.

Nothing Weston related ever uses GLX. Even Weston on X11 will be using EGL.
Wayland apps do not even have choice, it is always EGL, since GLX is tied to
X11.

If you are getting a software GL-renderer, I would except that to show up in
the GL_RENDERER string, but in all info I have seen from you, I haven't
recognized that anywhere.

I think we can agree that this is not a Weston bug at least, right?

Though, Weston could be more graceful about it, and quit if it can't work,
rather than stick with a black screen. That would need someone who can
reproduce the issue, and then figure out how Weston can detect the situation. I
thought Weston was already checking all relevant function calls, but maybe we
missed something.

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