"T43 login: render error detected, EIR: 0x00000010; page table error; PGTBL_ER: 0x000000100; [drm:915_handle_error]"

[Detlef Lechner]

Hi,
During booting I obtain the message: "
T43 login: render error detected, EIR: 0x00000010;
page table error;
PGTBL_ER: 0x000000100;
[drm:915_handle_error] *ERROR* EIR stuck: 0x00000010, masking
render error detected, EIR: 0x00000010
page table error
  PGTBL_ER: 0x00000100."

How to troubleshoot?
I cannot find this error by googling.
What 'project' or DEB program package to associate to this error in
Launchpad?