FYI, we noticed the below changes on git://linuxtv.org/hverkuil/media_tree.git cec13 commit b0e6e8dcab2d5365d09a05b9dd66c343545321fa ("vivid: add CEC emulation") As below, the log "Couldn't load IR keymap rc-cec" showed with your commit. [ 3.639455] Registered IR keymap rc-empty [ 3.640121] input: rc-core loopback device as /devices/virtual/rc/rc0/input1 [ 3.640969] evbug: Connected device: input1 (rc-core loopback device at rc-core/virtual) [ 3.641931] rc rc0: rc-core loopback device as /devices/virtual/rc/rc0 [ 3.643276] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 [ 3.644419] evbug: Connected device: input2 (AT Translated Set 2 keyboard at isa0060/serio0/input0) [ 3.644513] input: MCE IR Keyboard/Mouse (rc-loopback) as /devices/virtual/input/input3 [ 3.646543] evbug: Connected device: input3 (MCE IR Keyboard/Mouse (rc-loopback) at /input0) [ 3.648056] vivid-000: using single planar format API [ 3.652425] Couldn't load IR keymap rc-cec [ 3.653006] Registered IR keymap rc-empty [ 3.653611] input: RC for vivid-000-vid-cap0 as /devices/platform/vivid.0/rc/rc1/input6 [ 3.654616] evbug: Connected device: input6 (RC for vivid-000-vid-cap0 at vivid-000-vid-cap0/input0) [ 3.655730] rc rc1: RC for vivid-000-vid-cap0 as /devices/platform/vivid.0/rc/rc1 [ 3.656856] vivid-000: CEC adapter cec0 registered for HDMI input 111 [ 3.657847] vivid-000: V4L2 capture device registered as video0 [ 3.658751] Couldn't load IR keymap rc-cec [ 3.659235] Registered IR keymap rc-empty [ 3.659815] input: RC for vivid-000-vid-out0 as /devices/platform/vivid.0/rc/rc2/input7 [ 3.660759] evbug: Connected device: input7 (RC for vivid-000-vid-out0 at vivid-000-vid-out0/input0) [ 3.661863] rc rc2: RC for vivid-000-vid-out0 as /devices/platform/vivid.0/rc/rc2 [ 3.662919] vivid-000: CEC adapter cec1 registered for HDMI output 1 [ 3.663792] vivid-000: V4L2 output device registered as video1 [ 3.664700] vivid-000: V4L2 capture device registered as vbi0, supports raw and sliced VBI [ 3.665824] vivid-000: V4L2 output device registered as vbi1, supports raw and sliced VBI [ 3.667048] vivid-000: V4L2 capture device registered as swradio0 [ 3.667976] vivid-000: V4L2 receiver device registered as radio0 [ 3.668810] vivid-000: V4L2 transmitter device registered as radio1 [ 3.670580] usbcore: registered new interface driver ushc [ 3.671508] ledtrig-cpu: registered to indicate activity on CPUs [ 3.672345] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2) Thanks, Xiaolong Ye.