Description of problem: brightnessup and brightnessdown are not being used by gnome for brightness control changes Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. map the function key for brightness (I am on a Dell Chromebook 13 (codename lulu) 2. 3. Actual results: nothing happens on brightness up and down Expected results: The screenbrightness is supposed to change Additional info: Worked in Fedora 25 x86_64. evtest shows the proper keys Note that volume up and down work just fine! When validating in the gnome settings, there is no hotkey anymore to set the screen brightness! # udevadm info /dev/input/event3 | grep KEYBOARD_KEY E: KEYBOARD_KEY_3d=refresh E: KEYBOARD_KEY_3e=switchvideomode E: KEYBOARD_KEY_40=brightnessdown E: KEYBOARD_KEY_41=brightnessup E: KEYBOARD_KEY_42=mute E: KEYBOARD_KEY_43=volumedown E: KEYBOARD_KEY_44=volumeup # evtest /dev/input/event3 Input driver version is 1.0.1 Input device ID: bus 0x11 vendor 0x1 product 0x1 version 0xab83 Input device name: "AT Translated Set 2 keyboard" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 1 (KEY_ESC) Event code 2 (KEY_1) Event code 3 (KEY_2) Event code 4 (KEY_3) Event code 5 (KEY_4) Event code 6 (KEY_5) Event code 7 (KEY_6) Event code 8 (KEY_7) Event code 9 (KEY_8) Event code 10 (KEY_9) Event code 11 (KEY_0) Event code 12 (KEY_MINUS) Event code 13 (KEY_EQUAL) Event code 14 (KEY_BACKSPACE) Event code 15 (KEY_TAB) Event code 16 (KEY_Q) Event code 17 (KEY_W) Event code 18 (KEY_E) Event code 19 (KEY_R) Event code 20 (KEY_T) Event code 21 (KEY_Y) Event code 22 (KEY_U) Event code 23 (KEY_I) Event code 24 (KEY_O) Event code 25 (KEY_P) Event code 26 (KEY_LEFTBRACE) Event code 27 (KEY_RIGHTBRACE) Event code 28 (KEY_ENTER) Event code 29 (KEY_LEFTCTRL) Event code 30 (KEY_A) Event code 31 (KEY_S) Event code 32 (KEY_D) Event code 33 (KEY_F) Event code 34 (KEY_G) Event code 35 (KEY_H) Event code 36 (KEY_J) Event code 37 (KEY_K) Event code 38 (KEY_L) Event code 39 (KEY_SEMICOLON) Event code 40 (KEY_APOSTROPHE) Event code 41 (KEY_GRAVE) Event code 42 (KEY_LEFTSHIFT) Event code 43 (KEY_BACKSLASH) Event code 44 (KEY_Z) Event code 45 (KEY_X) Event code 46 (KEY_C) Event code 47 (KEY_V) Event code 48 (KEY_B) Event code 49 (KEY_N) Event code 50 (KEY_M) Event code 51 (KEY_COMMA) Event code 52 (KEY_DOT) Event code 53 (KEY_SLASH) Event code 54 (KEY_RIGHTSHIFT) Event code 55 (KEY_KPASTERISK) Event code 56 (KEY_LEFTALT) Event code 57 (KEY_SPACE) Event code 58 (KEY_CAPSLOCK) Event code 59 (KEY_F1) Event code 60 (KEY_F2) Event code 63 (KEY_F5) Event code 69 (KEY_NUMLOCK) Event code 70 (KEY_SCROLLLOCK) Event code 71 (KEY_KP7) Event code 72 (KEY_KP8) Event code 73 (KEY_KP9) Event code 74 (KEY_KPMINUS) Event code 75 (KEY_KP4) Event code 76 (KEY_KP5) Event code 77 (KEY_KP6) Event code 78 (KEY_KPPLUS) Event code 79 (KEY_KP1) Event code 80 (KEY_KP2) Event code 81 (KEY_KP3) Event code 82 (KEY_KP0) Event code 83 (KEY_KPDOT) Event code 85 (KEY_ZENKAKUHANKAKU) Event code 86 (KEY_102ND) Event code 87 (KEY_F11) Event code 88 (KEY_F12) Event code 89 (KEY_RO) Event code 90 (KEY_KATAKANA) Event code 91 (KEY_HIRAGANA) Event code 92 (KEY_HENKAN) Event code 93 (KEY_KATAKANAHIRAGANA) Event code 94 (KEY_MUHENKAN) Event code 95 (KEY_KPJPCOMMA) Event code 96 (KEY_KPENTER) Event code 97 (KEY_RIGHTCTRL) Event code 98 (KEY_KPSLASH) Event code 99 (KEY_SYSRQ) Event code 100 (KEY_RIGHTALT) Event code 102 (KEY_HOME) Event code 103 (KEY_UP) Event code 104 (KEY_PAGEUP) Event code 105 (KEY_LEFT) Event code 106 (KEY_RIGHT) Event code 107 (KEY_END) Event code 108 (KEY_DOWN) Event code 109 (KEY_PAGEDOWN) Event code 110 (KEY_INSERT) Event code 111 (KEY_DELETE) Event code 112 (KEY_MACRO) Event code 113 (KEY_MUTE) Event code 114 (KEY_VOLUMEDOWN) Event code 115 (KEY_VOLUMEUP) Event code 116 (KEY_POWER) Event code 117 (KEY_KPEQUAL) Event code 118 (KEY_KPPLUSMINUS) Event code 119 (KEY_PAUSE) Event code 121 (KEY_KPCOMMA) Event code 122 (KEY_HANGUEL) Event code 123 (KEY_HANJA) Event code 124 (KEY_YEN) Event code 125 (KEY_LEFTMETA) Event code 126 (KEY_RIGHTMETA) Event code 127 (KEY_COMPOSE) Event code 128 (KEY_STOP) Event code 140 (KEY_CALC) Event code 142 (KEY_SLEEP) Event code 143 (KEY_WAKEUP) Event code 155 (KEY_MAIL) Event code 156 (KEY_BOOKMARKS) Event code 157 (KEY_COMPUTER) Event code 158 (KEY_BACK) Event code 159 (KEY_FORWARD) Event code 163 (KEY_NEXTSONG) Event code 164 (KEY_PLAYPAUSE) Event code 165 (KEY_PREVIOUSSONG) Event code 166 (KEY_STOPCD) Event code 172 (KEY_HOMEPAGE) Event code 173 (KEY_REFRESH) Event code 183 (KEY_F13) Event code 184 (KEY_F14) Event code 185 (KEY_F15) Event code 217 (KEY_SEARCH) Event code 224 (KEY_BRIGHTNESSDOWN) Event code 225 (KEY_BRIGHTNESSUP) Event code 226 (KEY_MEDIA) Event code 227 (KEY_SWITCHVIDEOMODE) Event type 4 (EV_MSC) Event code 4 (MSC_SCAN) Event type 17 (EV_LED) Event code 0 (LED_NUML) state 0 Event code 1 (LED_CAPSL) state 0 Event code 2 (LED_SCROLLL) state 0 Key repeat handling: Repeat type 20 (EV_REP) Repeat code 0 (REP_DELAY) Value 250 Repeat code 1 (REP_PERIOD) Value 33 Properties: Testing ... (interrupt to exit) Event: time 1500442480.526705, type 4 (EV_MSC), code 4 (MSC_SCAN), value 1c Event: time 1500442480.526705, type 1 (EV_KEY), code 28 (KEY_ENTER), value 0 Event: time 1500442480.526705, -------------- SYN_REPORT ------------ Event: time 1500442482.386572, type 4 (EV_MSC), code 4 (MSC_SCAN), value 40 Event: time 1500442482.386572, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 1 Event: time 1500442482.386572, -------------- SYN_REPORT ------------ Event: time 1500442482.494615, type 4 (EV_MSC), code 4 (MSC_SCAN), value 40 Event: time 1500442482.494615, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 0 Event: time 1500442482.494615, -------------- SYN_REPORT ------------ Event: time 1500442482.713933, type 4 (EV_MSC), code 4 (MSC_SCAN), value 41 Event: time 1500442482.713933, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 1 Event: time 1500442482.713933, -------------- SYN_REPORT ------------ Event: time 1500442482.856803, type 4 (EV_MSC), code 4 (MSC_SCAN), value 41 Event: time 1500442482.856803, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 0 Event: time 1500442482.856803, -------------- SYN_REPORT ------------ Event: time 1500442483.963173, type 4 (EV_MSC), code 4 (MSC_SCAN), value 42 Event: time 1500442483.963173, type 1 (EV_KEY), code 113 (KEY_MUTE), value 1 Event: time 1500442483.963173, -------------- SYN_REPORT ------------ Event: time 1500442484.050906, type 4 (EV_MSC), code 4 (MSC_SCAN), value 42 Event: time 1500442484.050906, type 1 (EV_KEY), code 113 (KEY_MUTE), value 0 Event: time 1500442484.050906, -------------- SYN_REPORT ------------ Event: time 1500442484.230177, type 4 (EV_MSC), code 4 (MSC_SCAN), value 43 Event: time 1500442484.230177, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 1 Event: time 1500442484.230177, -------------- SYN_REPORT ------------ Event: time 1500442484.339924, type 4 (EV_MSC), code 4 (MSC_SCAN), value 43 Event: time 1500442484.339924, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 0 Event: time 1500442484.339924, -------------- SYN_REPORT ------------ Event: time 1500442484.560765, type 4 (EV_MSC), code 4 (MSC_SCAN), value 44 Event: time 1500442484.560765, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1 Event: time 1500442484.560765, -------------- SYN_REPORT ------------ Event: time 1500442484.667044, type 4 (EV_MSC), code 4 (MSC_SCAN), value 44 Event: time 1500442484.667044, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 0 Event: time 1500442484.667044, -------------- SYN_REPORT ------------
A reboot is necessary to make it work... (a logout-login might suffice, untested)