Can't set BR and CR on Dell U2713H

[wbednarski]

trafficstars

It doesn’t work on Dell U2713H on the latest OS X (10.11.6) and MBPr (MacBook Pro Retina, 13-inch, Early 2015).

It can prob BR and CR values correctly, but can’t set them. Sliders in the menu bar have no effect on monitors BR or CR.

Here you go with the debug log:

Brightness Menulet[1211]: VCP: 0 - 0 / 255 
Brightness Menulet[1211]: VCP: 1 - 0 / 255 
Brightness Menulet[1211]: VCP: 2 - 2 / 255 
Brightness Menulet[1211]: VCP: 3 - 0 / 255 
Brightness Menulet[1211]: VCP: 4 - 0 / 1 
Brightness Menulet[1211]: VCP: 5 - 0 / 1 
Brightness Menulet[1211]: VCP: 6 - 0 / 1 
Brightness Menulet[1211]: VCP: 7 - 0 / 255 
Brightness Menulet[1211]: VCP: 8 - 0 / 1 
Brightness Menulet[1211]: VCP: 9 - 0 / 255 
Brightness Menulet[1211]: VCP: a - 0 / 255 
Brightness Menulet[1211]: VCP: b - 0 / 255 
Brightness Menulet[1211]: VCP: c - 0 / 255 
Brightness Menulet[1211]: VCP: d - 0 / 255 
Brightness Menulet[1211]: VCP: e - 0 / 255 
Brightness Menulet[1211]: VCP: f - 0 / 255 
Brightness Menulet[1211]: VCP: 10 - 0 / 100 
Brightness Menulet[1211]: VCP: 11 - 0 / 255 
Brightness Menulet[1211]: VCP: 12 - 50 / 100 
Brightness Menulet[1211]: VCP: 13 - 0 / 255 
Brightness Menulet[1211]: VCP: 14 - 5 / 255 
Brightness Menulet[1211]: VCP: 15 - 0 / 255 
Brightness Menulet[1211]: VCP: 16 - 100 / 100 
Brightness Menulet[1211]: VCP: 17 - 0 / 255 
Brightness Menulet[1211]: VCP: 18 - 100 / 100 
Brightness Menulet[1211]: VCP: 19 - 0 / 255 
Brightness Menulet[1211]: VCP: 1a - 100 / 100 
Brightness Menulet[1211]: VCP: 1b - 0 / 255 
Brightness Menulet[1211]: VCP: 1c - 0 / 255 
Brightness Menulet[1211]: VCP: 1d - 0 / 255 
Brightness Menulet[1211]: VCP: 1e - 0 / 1 
Brightness Menulet[1211]: VCP: 1f - 0 / 255 
Brightness Menulet[1211]: VCP: 20 - 0 / 255 
Brightness Menulet[1211]: VCP: 21 - 0 / 255 
Brightness Menulet[1211]: VCP: 22 - 0 / 255 
Brightness Menulet[1211]: VCP: 23 - 0 / 255 
Brightness Menulet[1211]: VCP: 24 - 0 / 255 
Brightness Menulet[1211]: VCP: 25 - 0 / 255 
Brightness Menulet[1211]: VCP: 26 - 0 / 255 
Brightness Menulet[1211]: VCP: 27 - 0 / 255 
Brightness Menulet[1211]: VCP: 28 - 0 / 255 
Brightness Menulet[1211]: VCP: 29 - 0 / 255 
Brightness Menulet[1211]: VCP: 2a - 0 / 255 
Brightness Menulet[1211]: VCP: 2b - 0 / 255 
Brightness Menulet[1211]: VCP: 2c - 0 / 255 
Brightness Menulet[1211]: VCP: 2d - 0 / 255 
Brightness Menulet[1211]: VCP: 2e - 0 / 255 
Brightness Menulet[1211]: VCP: 2f - 0 / 255 
Brightness Menulet[1211]: VCP: 30 - 0 / 255 
Brightness Menulet[1211]: VCP: 31 - 0 / 255 
Brightness Menulet[1211]: VCP: 32 - 0 / 255 
Brightness Menulet[1211]: VCP: 33 - 0 / 255 
Brightness Menulet[1211]: VCP: 34 - 0 / 255 
Brightness Menulet[1211]: VCP: 35 - 0 / 255 
Brightness Menulet[1211]: VCP: 36 - 0 / 255 
Brightness Menulet[1211]: VCP: 37 - 0 / 255 
Brightness Menulet[1211]: VCP: 38 - 0 / 255 
Brightness Menulet[1211]: VCP: 39 - 0 / 255 
Brightness Menulet[1211]: VCP: 3a - 0 / 255 
Brightness Menulet[1211]: VCP: 3b - 0 / 255 
Brightness Menulet[1211]: VCP: 3c - 0 / 255 
Brightness Menulet[1211]: VCP: 3d - 0 / 255 
Brightness Menulet[1211]: VCP: 3e - 0 / 255 
Brightness Menulet[1211]: VCP: 3f - 0 / 255 
Brightness Menulet[1211]: VCP: 40 - 0 / 255 
Brightness Menulet[1211]: VCP: 41 - 0 / 255 
Brightness Menulet[1211]: VCP: 42 - 0 / 255 
Brightness Menulet[1211]: VCP: 43 - 0 / 255 
Brightness Menulet[1211]: VCP: 44 - 0 / 255 
Brightness Menulet[1211]: VCP: 45 - 0 / 255 
Brightness Menulet[1211]: VCP: 46 - 0 / 255 
Brightness Menulet[1211]: VCP: 47 - 0 / 255 
Brightness Menulet[1211]: VCP: 48 - 0 / 255 
Brightness Menulet[1211]: VCP: 49 - 0 / 255 
Brightness Menulet[1211]: VCP: 4a - 0 / 255 
Brightness Menulet[1211]: VCP: 4b - 0 / 255 
Brightness Menulet[1211]: VCP: 4c - 0 / 255 
Brightness Menulet[1211]: VCP: 4d - 0 / 255 
Brightness Menulet[1211]: VCP: 4e - 0 / 255 
Brightness Menulet[1211]: VCP: 4f - 0 / 255 
Brightness Menulet[1211]: VCP: 50 - 0 / 255 
Brightness Menulet[1211]: VCP: 51 - 0 / 255 
Brightness Menulet[1211]: VCP: 52 - 0 / 255 
Brightness Menulet[1211]: VCP: 53 - 0 / 255 
Brightness Menulet[1211]: VCP: 54 - 0 / 255 
Brightness Menulet[1211]: VCP: 55 - 0 / 255 
Brightness Menulet[1211]: VCP: 56 - 0 / 255 
Brightness Menulet[1211]: VCP: 57 - 0 / 255 
Brightness Menulet[1211]: VCP: 58 - 0 / 255 
Brightness Menulet[1211]: VCP: 59 - 0 / 255 
Brightness Menulet[1211]: VCP: 5a - 0 / 255 
Brightness Menulet[1211]: VCP: 5b - 0 / 255 
Brightness Menulet[1211]: VCP: 5c - 0 / 255 
Brightness Menulet[1211]: VCP: 5d - 0 / 255 
Brightness Menulet[1211]: VCP: 5e - 0 / 255 
Brightness Menulet[1211]: VCP: 5f - 0 / 255 
Brightness Menulet[1211]: VCP: 60 - 15 / 255 
Brightness Menulet[1211]: VCP: 61 - 0 / 255 
Brightness Menulet[1211]: VCP: 62 - 0 / 255 
Brightness Menulet[1211]: VCP: 63 - 0 / 255 
Brightness Menulet[1211]: VCP: 64 - 0 / 255 
Brightness Menulet[1211]: VCP: 65 - 0 / 255 
Brightness Menulet[1211]: VCP: 66 - 0 / 255 
Brightness Menulet[1211]: VCP: 67 - 0 / 255 
Brightness Menulet[1211]: VCP: 68 - 1 / 2 
Brightness Menulet[1211]: VCP: 69 - 0 / 255 
Brightness Menulet[1211]: VCP: 6a - 0 / 255 
Brightness Menulet[1211]: VCP: 6b - 0 / 255 
Brightness Menulet[1211]: VCP: 6c - 0 / 255 
Brightness Menulet[1211]: VCP: 6d - 0 / 255 
Brightness Menulet[1211]: VCP: 6e - 0 / 255 
Brightness Menulet[1211]: VCP: 6f - 0 / 255 
Brightness Menulet[1211]: VCP: 70 - 0 / 255 
Brightness Menulet[1211]: VCP: 71 - 0 / 255 
Brightness Menulet[1211]: VCP: 72 - 0 / 255 
Brightness Menulet[1211]: VCP: 73 - 0 / 255 
Brightness Menulet[1211]: VCP: 74 - 0 / 255 
Brightness Menulet[1211]: VCP: 75 - 0 / 255 
Brightness Menulet[1211]: VCP: 76 - 0 / 255 
Brightness Menulet[1211]: VCP: 77 - 0 / 255 
Brightness Menulet[1211]: VCP: 78 - 0 / 255 
Brightness Menulet[1211]: VCP: 79 - 0 / 255 
Brightness Menulet[1211]: VCP: 7a - 0 / 255 
Brightness Menulet[1211]: VCP: 7b - 0 / 255 
Brightness Menulet[1211]: VCP: 7c - 0 / 255 
Brightness Menulet[1211]: VCP: 7d - 0 / 255 
Brightness Menulet[1211]: VCP: 7e - 0 / 255 
Brightness Menulet[1211]: VCP: 7f - 0 / 255 
Brightness Menulet[1211]: VCP: 80 - 0 / 255 
Brightness Menulet[1211]: VCP: 81 - 0 / 255 
Brightness Menulet[1211]: VCP: 82 - 0 / 255 
Brightness Menulet[1211]: VCP: 83 - 0 / 255 
Brightness Menulet[1211]: VCP: 84 - 0 / 255 
Brightness Menulet[1211]: VCP: 85 - 0 / 255 
Brightness Menulet[1211]: VCP: 86 - 0 / 255 
Brightness Menulet[1211]: VCP: 87 - 0 / 255 
Brightness Menulet[1211]: VCP: 88 - 0 / 255 
Brightness Menulet[1211]: VCP: 89 - 0 / 255 
Brightness Menulet[1211]: VCP: 8a - 50 / 255 
Brightness Menulet[1211]: VCP: 8b - 0 / 255 
Brightness Menulet[1211]: VCP: 8c - 12 / 255 
Brightness Menulet[1211]: VCP: 8d - 0 / 255 
Brightness Menulet[1211]: VCP: 8e - 0 / 255 
Brightness Menulet[1211]: VCP: 8f - 0 / 255 
Brightness Menulet[1211]: VCP: 90 - 0 / 255 
Brightness Menulet[1211]: VCP: 91 - 0 / 255 
Brightness Menulet[1211]: VCP: 92 - 0 / 255 
Brightness Menulet[1211]: VCP: 93 - 0 / 255 
Brightness Menulet[1211]: VCP: 94 - 0 / 255 
Brightness Menulet[1211]: VCP: 95 - 0 / 255 
Brightness Menulet[1211]: VCP: 96 - 0 / 255 
Brightness Menulet[1211]: VCP: 97 - 0 / 255 
Brightness Menulet[1211]: VCP: 98 - 0 / 255 
Brightness Menulet[1211]: VCP: 99 - 0 / 255 
Brightness Menulet[1211]: VCP: 9a - 0 / 255 
Brightness Menulet[1211]: VCP: 9b - 0 / 255 
Brightness Menulet[1211]: VCP: 9c - 0 / 255 
Brightness Menulet[1211]: VCP: 9d - 0 / 255 
Brightness Menulet[1211]: VCP: 9e - 0 / 255 
Brightness Menulet[1211]: VCP: 9f - 0 / 255 
Brightness Menulet[1211]: VCP: a0 - 0 / 255 
Brightness Menulet[1211]: VCP: a1 - 0 / 255 
Brightness Menulet[1211]: VCP: a2 - 0 / 255 
Brightness Menulet[1211]: VCP: a3 - 0 / 255 
Brightness Menulet[1211]: VCP: a4 - 0 / 255 
Brightness Menulet[1211]: VCP: a5 - 0 / 255 
Brightness Menulet[1211]: VCP: a6 - 0 / 255 
Brightness Menulet[1211]: VCP: a7 - 0 / 255 
Brightness Menulet[1211]: VCP: a8 - 0 / 255 
Brightness Menulet[1211]: VCP: a9 - 0 / 255 
Brightness Menulet[1211]: VCP: aa - 1 / 255 
Brightness Menulet[1211]: VCP: ab - 0 / 255 
Brightness Menulet[1211]: VCP: ac - 124 / 1 
Brightness Menulet[1211]: VCP: ad - 0 / 255 
Brightness Menulet[1211]: VCP: ae - 102 / 255 
Brightness Menulet[1211]: VCP: af - 0 / 255 
Brightness Menulet[1211]: VCP: b0 - 0 / 1 
Brightness Menulet[1211]: VCP: b1 - 0 / 255 
Brightness Menulet[1211]: VCP: b2 - 0 / 255 
Brightness Menulet[1211]: VCP: b3 - 0 / 255 
Brightness Menulet[1211]: VCP: b4 - 0 / 255 
Brightness Menulet[1211]: VCP: b5 - 0 / 255 
Brightness Menulet[1211]: VCP: b6 - 3 / 255 
Brightness Menulet[1211]: VCP: b7 - 0 / 255 
Brightness Menulet[1211]: VCP: b8 - 0 / 255 
Brightness Menulet[1211]: VCP: b9 - 0 / 255 
Brightness Menulet[1211]: VCP: ba - 0 / 255 
Brightness Menulet[1211]: VCP: bb - 0 / 255 
Brightness Menulet[1211]: VCP: bc - 0 / 255 
Brightness Menulet[1211]: VCP: bd - 0 / 255 
Brightness Menulet[1211]: VCP: be - 0 / 255 
Brightness Menulet[1211]: VCP: bf - 0 / 255 
Brightness Menulet[1211]: VCP: c0 - 0 / 255 
Brightness Menulet[1211]: VCP: c1 - 0 / 255 
Brightness Menulet[1211]: VCP: c2 - 0 / 255 
Brightness Menulet[1211]: VCP: c3 - 0 / 255 
Brightness Menulet[1211]: VCP: c4 - 0 / 255 
Brightness Menulet[1211]: VCP: c5 - 0 / 255 
Brightness Menulet[1211]: VCP: c6 - 204 / 255 
Brightness Menulet[1211]: VCP: c7 - 0 / 255 
Brightness Menulet[1211]: VCP: c8 - 13 / 147 
Brightness Menulet[1211]: VCP: c9 - 1 / 255 
Brightness Menulet[1211]: VCP: ca - 0 / 2 
Brightness Menulet[1211]: VCP: cb - 0 / 255 
Brightness Menulet[1211]: VCP: cc - 2 / 11 
Brightness Menulet[1211]: VCP: cd - 0 / 255 
Brightness Menulet[1211]: VCP: ce - 0 / 255 
Brightness Menulet[1211]: VCP: cf - 0 / 255 
Brightness Menulet[1211]: VCP: d0 - 0 / 255 
Brightness Menulet[1211]: VCP: d1 - 0 / 255 
Brightness Menulet[1211]: VCP: d2 - 0 / 255 
Brightness Menulet[1211]: VCP: d3 - 0 / 255 
Brightness Menulet[1211]: VCP: d4 - 0 / 255 
Brightness Menulet[1211]: VCP: d5 - 0 / 255 
Brightness Menulet[1211]: VCP: d6 - 1 / 255 
Brightness Menulet[1211]: VCP: d7 - 0 / 255 
Brightness Menulet[1211]: VCP: d8 - 0 / 255 
Brightness Menulet[1211]: VCP: d9 - 0 / 255 
Brightness Menulet[1211]: VCP: da - 0 / 255 
Brightness Menulet[1211]: VCP: db - 0 / 255 
Brightness Menulet[1211]: VCP: dc - 0 / 255 
Brightness Menulet[1211]: VCP: dd - 0 / 255 
Brightness Menulet[1211]: VCP: de - 0 / 255 
Brightness Menulet[1211]: VCP: df - 1 / 255 
Brightness Menulet[1211]: VCP: e0 - 0 / 255 
Brightness Menulet[1211]: VCP: e1 - 0 / 255 
Brightness Menulet[1211]: VCP: e2 - 15 / 255 
Brightness Menulet[1211]: VCP: e3 - 0 / 255 
Brightness Menulet[1211]: VCP: e4 - 1 / 255 
Brightness Menulet[1211]: VCP: e5 - 0 / 255 
Brightness Menulet[1211]: VCP: e6 - 0 / 255 
Brightness Menulet[1211]: VCP: e7 - 0 / 255 
Brightness Menulet[1211]: VCP: e8 - 0 / 255 
Brightness Menulet[1211]: VCP: e9 - 0 / 255 
Brightness Menulet[1211]: VCP: ea - 0 / 255 
Brightness Menulet[1211]: VCP: eb - 0 / 255 
Brightness Menulet[1211]: VCP: ec - 0 / 255 
Brightness Menulet[1211]: VCP: ed - 0 / 255 
Brightness Menulet[1211]: VCP: ee - 0 / 255 
Brightness Menulet[1211]: VCP: ef - 0 / 255 
Brightness Menulet[1211]: VCP: f0 - 0 / 255 
Brightness Menulet[1211]: VCP: f1 - 3 / 255 
Brightness Menulet[1211]: VCP: f2 - 0 / 255 
Brightness Menulet[1211]: VCP: f3 - 0 / 255 
Brightness Menulet[1211]: VCP: f4 - 0 / 255 
Brightness Menulet[1211]: VCP: f5 - 0 / 255 
Brightness Menulet[1211]: VCP: f6 - 0 / 255 
Brightness Menulet[1211]: VCP: f7 - 0 / 255 
Brightness Menulet[1211]: VCP: f8 - 0 / 255 
Brightness Menulet[1211]: VCP: f9 - 0 / 255 
Brightness Menulet[1211]: VCP: fa - 0 / 255 
Brightness Menulet[1211]: VCP: fb - 0 / 255 
Brightness Menulet[1211]: VCP: fc - 0 / 255 
Brightness Menulet[1211]: VCP: fd - 98 / 255 
Brightness Menulet[1211]: VCP: fe - 0 / 255 
Brightness Menulet[1211]: VCP: ff - 0 / 255