Comment 81 for bug 1746740

Here my own measures:
ubuntu@ubuntu:~$ sudo libinput measure touch-size
Using CyPS/2 Cypress Trackpad: /dev/input/event6

Error: device does not have ABS_MT_TOUCH_MAJOR
ubuntu@ubuntu:~$ sudo libinput measure touchpad-pressure
Using CyPS/2 Cypress Trackpad: /dev/input/event6

Ready for recording data.
Pressure range used: 25:30
Palm pressure range used: 130
Place a single finger on the touchpad to measure pressure values.
Ctrl+C to exit

Sequence 145 pressure: min: 59 max: 131 avg: 111 median: 122 tags: down palm
Sequence 146 pressure: min: 69 max: 134 avg: 122 median: 125 tags: down palm
Sequence 147 pressure: min: 56 max: 90 avg: 78 median: 88 tags: down
Sequence 148 pressure: min: 31 max: 113 avg: 90 median: 99 tags: down
Sequence 149 pressure: min: 42 max: 120 avg: 94 median: 103 tags: down
Sequence 150 pressure: min: 44 max: 119 avg: 98 median: 109 tags: down
Sequence 151 pressure: min: 76 max: 123 avg: 107 median: 114 tags: down
Sequence 152 pressure: min: 48 max: 119 avg: 95 median: 106 tags: down
Sequence 153 pressure: min: 60 max: 107 avg: 90 median: 98 tags: down
Sequence 154 pressure: min: 77 max: 100 avg: 88 median: 94 tags: down
Sequence 155 pressure: min: 66 max: 94 avg: 83 median: 93 tags: down
Sequence 156 pressure: min: 39 max: 76 avg: 63 median: 70 tags: down
Sequence 157 pressure: min: 39 max: 108 avg: 87 median: 97 tags: down
Sequence 158 pressure: min: 29 max: 89 avg: 69 median: 84 tags: down
Sequence 159 pressure: min: 31 max: 91 avg: 69 median: 81 tags: down
Sequence 160 pressure: min: 10 max: 88 avg: 58 median: 62 tags: down
Sequence 161 pressure: min: 31 max: 87 avg: 66 median: 71 tags: down
Sequence 162 pressure: min: 23 max: 98 avg: 71 median: 80 tags: down
Sequence 163 pressure: min: 52 max: 102 avg: 81 median: 86 tags: down
Sequence 164 pressure: min: 37 max: 80 avg: 61 median: 65 tags: down
Sequence 165 pressure: min: 34 max: 87 avg: 68 median: 77 tags: down
Sequence 166 pressure: min: 42 max: 91 avg: 74 median: 78 tags: down
Sequence 167 pressure: min: 29 max: 97 avg: 76 median: 88 tags: down
Sequence 168 pressure: min: 34 max: 96 avg: 77 median: 88 tags: down
Sequence 169 pressure: min: 36 max: 90 avg: 72 median: 76 tags: down
Sequence 170 pressure: min: 53 max: 93 avg: 79 median: 87 tags: down
Sequence 171 pressure: min: 70 max: 118 avg: 100 median: 108 tags: down
Sequence 172 pressure: min: 40 max: 90 avg: 73 median: 80 tags: down
Sequence 173 pressure: min: 40 max: 94 avg: 76 median: 81 tags: down
Sequence 174 pressure: min: 42 max: 97 avg: 78 median: 86 tags: down
Sequence 175 pressure: min: 31 max: 96 avg: 73 median: 82 tags: down
Sequence 176 pressure: min: 36 max: 94 avg: 70 median: 78 tags: down
Sequence 177 pressure: min: 41 max: 73 avg: 61 median: 66 tags: down
Sequence 178 pressure: min: 10 max: 10 avg: 10 median: 10 tags:
Sequence 179 pressure: min: 25 max: 56 avg: 44 median: 50 tags: down
Sequence 180 pressure: min: 28 max: 69 avg: 54 median: 56 tags: down
Sequence 181 pressure: min: 26 max: 78 avg: 61 median: 72 tags: down
Sequence 182 pressure: min: 41 max: 96 avg: 77 median: 79 tags: down
Sequence 183 pressure: min: 43 max: 121 avg: 97 median: 104 tags: down
Sequence 184 pressure: min: 39 max: 126 avg: 97 median: 111 tags: down
Sequence 185 pressure: min: 49 max: 125 avg: 99 median: 113 tags: down
Sequence 186 pressure: min: 53 max: 121 avg: 99 median: 106 tags: down
Sequence 187 pressure: min: 32 max: 107 avg: 81 median: 95 tags: down
Sequence 188 pressure: min: 44 max: 85 avg: 68 median: 72 tags: down
Sequence 189 pressure: min: 41 max: 67 avg: 58 median: 63 tags: down
Sequence 190 pressure: min: 20 max: 106 avg: 80 median: 96 tags: down
Sequence 191 pressure: min: 47 max: 115 avg: 90 median: 97 tags: down
Sequence 192 pressure: min: 56 max: 109 avg: 90 median: 93 tags: down
Sequence 193 pressure: min: 50 max: 110 avg: 89 median: 92 tags: down
Sequence 194 pressure: min: 70 max: 104 avg: 91 median: 101 tags: down
Sequence 195 pressure: min: 69 max: 131 avg: 106 median: 118 tags: down palm
Sequence 196 pressure: min: 65 max: 127 avg: 103 median: 116 tags: down
Sequence 197 pressure: min: 87 max: 144 avg: 122 median: 136 tags: down palm
Sequence 198 pressure: min: 67 max: 149 avg: 121 median: 127 tags: down palm
Sequence 199 pressure: min: 54 max: 146 avg: 111 median: 112 tags: down palm
Sequence 200 pressure: min: 58 max: 128 avg: 104 median: 109 tags: down
Sequence 201 pressure: min: 54 max: 183 avg: 142 median: 152 tags: down palm
Sequence 202 pressure: min: 59 max: 168 avg: 138 median: 148 tags: down palm
Sequence 203 pressure: min: 56 max: 164 avg: 134 median: 147 tags: down palm
Sequence 204 pressure: min: 42 max: 106 avg: 86 median: 99 tags: down
Sequence 205 pressure: min: 52 max: 112 avg: 92 median: 101 tags: down
Sequence 206 pressure: min: 48 max: 73 avg: 61 median: 62 tags: down
Sequence 207 pressure: min: 49 max: 101 avg: 84 median: 87 tags: down
Sequence 208 pressure: min: 51 max: 91 avg: 75 median: 83 tags: down
Sequence 209 pressure: min: 57 max: 105 avg: 89 median: 97 tags: down
Sequence 210 pressure: min: 18 max: 29 avg: 25 median: 28 tags:
Sequence 211 pressure: min: 55 max: 72 avg: 63 median: 69 tags: down
Sequence 212 pressure: min: 28 max: 89 avg: 69 median: 79 tags: down
Sequence 213 pressure: min: 36 max: 111 avg: 90 median: 100 tags: down
Sequence 214 pressure: min: 33 max: 112 avg: 86 median: 95 tags: down
Sequence 215 pressure: min: 35 max: 121 avg: 96 median: 104 tags: down
Sequence 216 pressure: min: 50 max: 102 avg: 82 median: 87 tags: down
Sequence 217 pressure: min: 51 max: 109 avg: 89 median: 98 tags: down
Sequence 218 pressure: min: 51 max: 90 avg: 77 median: 83 tags: down
Sequence 219 pressure: min: 19 max: 110 avg: 82 median: 95 tags: down
Sequence 220 pressure: min: 28 max: 118 avg: 95 median: 111 tags: down
Sequence 221 pressure: min: 33 max: 107 avg: 83 median: 96 tags: down
Sequence 222 pressure: min: 39 max: 116 avg: 90 median: 99 tags: down
Sequence 223 pressure: min: 39 max: 109 avg: 84 median: 98 tags: down
Sequence 224 pressure: min: 42 max: 105 avg: 82 median: 92 tags: down
Sequence 225 pressure: min: 28 max: 94 avg: 72 median: 80 tags: down
Sequence 226 pressure: min: 32 max: 69 avg: 54 median: 58 tags: down
Sequence 227 pressure: min: 47 max: 92 avg: 74 median: 77 tags: down
Sequence 228 pressure: min: 43 max: 97 avg: 76 median: 80 tags: down
Sequence 229 pressure: min: 39 max: 82 avg: 66 median: 73 tags: down
Sequence 230 pressure: min: 20 max: 66 avg: 49 median: 54 tags: down
Sequence 231 pressure: min: 35 max: 58 avg: 48 median: 51 tags: down
Sequence 232 pressure: min: 19 max: 50 avg: 40 median: 45 tags: down
Sequence 233 pressure: min: 32 max: 56 avg: 47 median: 51 tags: down
Sequence 234 pressure: min: 25 max: 48 avg: 40 median: 42 tags: down
Sequence 235 pressure: min: 9 max: 25 avg: 19 median: 23 tags:
Sequence 236 pressure: min: 20 max: 30 avg: 25 median: 30 tags: down
Sequence 237 pressure: min: 12 max: 32 avg: 25 median: 27 tags: down
Sequence 238 pressure: min: 14 max: 27 avg: 21 median: 22 tags:
Sequence 239 pressure: min: 14 max: 47 avg: 34 median: 39 tags: down
Sequence 240 pressure: min: 12 max: 18 avg: 15 median: 17 tags:
Sequence 241 pressure: min: 21 max: 41 avg: 33 median: 36 tags: down
Sequence 242 pressure: min: 18 max: 39 avg: 31 median: 35 tags: down
Sequence 243 pressure: min: 17 max: 31 avg: 25 median: 27 tags: down
Sequence 244 pressure: min: 18 max: 29 avg: 23 median: 26 tags:
Sequence 245 pressure: min: 47 max: 98 avg: 75 median: 86 tags: down
Sequence 246 pressure: min: 64 max: 110 avg: 89 median: 99 tags: down
Sequence 247 pressure: min: 35 max: 64 avg: 52 median: 57 tags: down
Sequence 248 pressure: min: 51 max: 75 avg: 66 median: 74 tags: down
Sequence 249 pressure: min: 44 max: 104 avg: 81 median: 84 tags: down
Sequence 250 pressure: min: 27 max: 105 avg: 78 median: 86 tags: down
Sequence 251 pressure: min: 42 max: 104 avg: 78 median: 86 tags: down
Sequence 252 pressure: min: 38 max: 104 avg: 79 median: 87 tags: down
Sequence 253 pressure: min: 52 max: 130 avg: 102 median: 108 tags: down
Sequence 254 pressure: min: 51 max: 124 avg: 98 median: 105 tags: down
Sequence 255 pressure: min: 57 max: 114 avg: 88 median: 98 tags: down
Sequence 256 pressure: min: 62 max: 131 avg: 104 median: 106 tags: down palm
Sequence 257 pressure: min: 57 max: 113 avg: 89 median: 99 tags: down
Sequence 258 pressure: min: 47 max: 118 avg: 89 median: 97 tags: down
Sequence 259 pressure: min: 52 max: 130 avg: 102 median: 109 tags: down
Sequence 260 pressure: min: 55 max: 122 avg: 99 median: 111 tags: down
Sequence 261 pressure: min: 68 max: 103 avg: 87 median: 92 tags: down
Sequence 262 pressure: min: 56 max: 123 avg: 97 median: 104 tags: down
Sequence 263 pressure: min: 66 max: 129 avg: 107 median: 115 tags: down
Sequence 264 pressure: min: 75 max: 116 avg: 100 median: 106 tags: down