Package: linux-image-amd64 Version: 5.6.14-1
Starting with Linux kernel package linux-image-5.6.0-1-amd64 (5.6.7-1) I get the following error message that is repeating every few seconds:
kernel: [drm:i915_gem_gtt_finish_pages [i915]] *ERROR* Failed to wait for idle; VT'd may hang.
Affected is at least linux-image-5.6.0-1-amd64 (5.6.7-1) and linux-image-5.6.0-2-amd64 (5.6.14-1).
The error message does not appear with linux-image-5.4.0-4-amd64 (5.4.19-1).
Hardware is a Lenovo T410 with integrated Intel graphics controller.