I saw your reference to the log from #2 and took a deeper look at it,
and saw this line:
[ 76855.829] (**) modeset(0): Option "AccelMethod" "glamor"
In my xorg.conf, I had Option "AccelMethod" "None" and hadn't thought
too hard about it because graphical acceleration worked with it set to
"None"
I ran into this issue as well, and switching from the modesetting driver
back to the intel driver in xorg.conf has helped tremendously. I went
from 15.10 through 16.04 (which was entirely broken for me, something
involving compiz I think) to 16.10, which worked, but had terrible
graphical
As an added data point, I found in running
$ update-alternatives --display x-terminal-emulator
x-terminal-emulator - auto mode
link currently points to /usr/bin/guake
/usr/bin/gnome-terminal.wrapper - priority 40
slave x-terminal-emulator.1.gz: /usr/share/man/man1/gnome-terminal.1.gz
I've been experiencing exactly this bug ever since updating to Utopic at
the end of December.
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https://bugs.launchpad.net/bugs/133
Title:
Unable to open Software Updater after it
Going through my browser history, I realized I had definitely managed to
play some youtube videos after the upgrade to Utopic, in at least two of
the mentioned browsers. I closed everything down, rebooted, and have
been able to play videos in all three browsers. I have no idea why all
three
Public bug reported:
I just discovered that after upgrading to Utopic a few days ago, youtube
html5 and flash videos simply don't play in Chrome, Chromium, or
FireFox. Videos will load, appear to buffer, but not play at all. The
player interface will be responsive, but the video does not play,
