https://bugzilla.kernel.org/show_bug.cgi?id=36522
--- Comment #18 from Christian Casteyde casteyde.christian@free.fr --- See comment #3, #4 and #5.
I think i'm using radeon driver with kms since the only graphic chip I have on my laptop is a Radeon 6650M (no intel graphic in CPU, has been deactivated by vendor).