On these Barebones PSR 2 is recognized as supported but is very buggy: - Upper third of screen does sometimes not updated, resulting in disappearing cursors or ghosts of already closed Windows saying behind. - Approximately 40 px from the bottom edge a 3 pixel wide strip of randomly colored pixels is flickering. PSR 1 is working fine however. This patchset introduces a new quirk to disable PSR 2 specifically on known buggy devices and applies it to the Tongfang PHxTxX1 and PHxTQx1 barebones. Signed-off-by: Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx>