@Michele: Thanks, that's it. You're my personal hero of the week (-:
** Package changed: libglvnd (Ubuntu) => nux (Ubuntu)
** Summary changed:
- Upgrade from 16.04 to 18.04 disables hardware acceleration on Intel Graphics
+ Upgrade from 16.04 to 18.04, then uninstalling unity disables hardware
Ok I fixed the problem on my system. This has nothing to do with
libglvnd but I don't know to which package it should be attributed.
Problem (at least for me) seems to be linked to
/etc/X11/Xsession.d/50_check_unity_support
that fails (as I had uninstalled unity after update) and causes Xsession
Same thing here.
The Intel driver ils not even loaded.
Evrything is slow and external displays are not detected.
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https://bugs.launchpad.net/bugs/1767468
Title:
Upgrade from 16.04 to
Running on a live evaluation gets proper HW acceleration, but I'd really
rather avoid having to reinstall if it can be avoided. A pointer for
where to look for trouble would be much appreciated, all of the obvious
log files show no sign of trouble.
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Similar problem. I actually had updated to 18.04 beta, with no problems.
The issue manifested itself after I upgraded to the final release
yesterday. I don't think it's related to similar other bugs as I have
libegl-mesa0 . I also cannot find any error message in the logs, seems
that Xorg loads
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libglvnd (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1767468
Title:
