This looks relevant. Xorg is saying:
[ 2402.232] (II) AIGLX: Screen 0 is not DRI2 capable
[ 2402.232] (EE) AIGLX: reverting to software rendering
Are you able to log into Wayland sessions?
** Summary changed:
- Software rendering is forced after 18.04 upgrade
+ Software rendering is forced after 18.04 upgrade (Intel Core 2 Duo P8600 /
GMA 4500MHD)
** No longer affects: xorg (Ubuntu)
** No longer affects: xserver-xorg-video-intel (Ubuntu)
** Also affects: mesa (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1770913
Title:
Software rendering is forced after 18.04 upgrade (Intel Core 2 Duo
P8600 / GMA 4500MHD)
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