Framebuffer corruption (briefly) when logging into Xorg sessions ("Xorg -background none") (Intel gen9 only)
Submitted by Daniel van Vugt @vanvugt
Assigned to Daniel Stone @daniels
Link to original bug (#105518)
Description
Xorg sessions are suddenly showing corruption upon login, briefly before the shell starts up.
This seems to be related to the use of "-background none" by the DM. If I remove "-background none" from the DM code then the corruption is replaced by a less bad second or two of blackness.
This problem seems to have started when Mesa 18.0.0 was introduced to Ubuntu 18.04. I can't seem to correlate it with anything else, and can't relate it to a specific Xorg update.