https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #9 from Paul Menzel --- Applying your patch to disable ss to Linux 3.13-rc8 worked. The monitor displays now something even with KMS. Thanks! It could still be that something else fixed it in Linux 3.13-rc8 which was not yet in 3.12.6. I’ll post the logs so you can decide. $ git log --format=oneline | head -2 9e6494b67886c1bf7ba5834ac43beb6d82661876 patch by Alex Deucher a6da83f98267bc8ee4e34aa899169991eb0ceb93 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc $ xrandr -q --verbose Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 eDP connected primary 1920x1080+0+0 (0x57) normal (normal left inverted right x axis y axis) 282mm x 165mm Identifier: 0x53 Timestamp: 139873 Subpixel: horizontal rgb Gamma: 1.0:1.0:1.0 Brightness: 1.0 Clones: CRTC: 0 CRTCs: 0 1 2 3 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID: 00ffffffffffff000dae431300000000 34150104a51c10780293ada9534c9625 114f5300000001010101010101010101 010101010101363680a0703820402e1e 24001aa510000018242480a070382040 2e1e24001aa510000018000000fe0043 4d4e0a202020202020202020000000fe 004e3133334853452d4541310a2000cd scaling mode: Full supported: None, Full, Center, Full aspect 1920x1080 (0x57) 138.8MHz -HSync -VSync *current +preferred h: width 1920 start 1966 end 1996 total 2080 skew 0 clock 66.7KHz v: height 1080 start 1082 end 1086 total 1112 clock 60.0Hz 1920x1080 (0x58) 92.5MHz -HSync -VSync h: width 1920 start 1966 end 1996 total 2080 skew 0 clock 44.5KHz v: height 1080 start 1082 end 1086 total 1112 clock 40.0Hz 1680x1050 (0x59) 146.2MHz -HSync +VSync h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.3KHz v: height 1050 start 1053 end 1059 total 1089 clock 60.0Hz 1400x1050 (0x5a) 121.8MHz -HSync +VSync h: width 1400 start 1488 end 1632 total 1864 skew 0 clock 65.3KHz v: height 1050 start 1053 end 1057 total 1089 clock 60.0Hz 1280x1024 (0x5b) 109.0MHz -HSync +VSync h: width 1280 start 1368 end 1496 total 1712 skew 0 clock 63.7KHz v: height 1024 start 1027 end 1034 total 1063 clock 59.9Hz 1440x900 (0x5c) 106.5MHz -HSync +VSync h: width 1440 start 1528 end 1672 total 1904 skew 0 clock 55.9KHz v: height 900 start 903 end 909 total 934 clock 59.9Hz 1280x960 (0x5d) 101.2MHz -HSync +VSync h: width 1280 start 1360 end 1488 total 1696 skew 0 clock 59.7KHz v: height 960 start 963 end 967 total 996 clock 59.9Hz 1280x854 (0x5e) 89.2MHz -HSync +VSync h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 53.1KHz v: height 854 start 857 end 867 total 887 clock 59.9Hz 1280x800 (0x5f) 83.5MHz -HSync +VSync h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.7KHz v: height 800 start 803 end 809 total 831 clock 59.8Hz 1280x720 (0x60) 74.5MHz -HSync +VSync h: width 1280 start 1344 end 1472 total 1664 skew 0 clock 44.8KHz v: height 720 start 723 end 728 total 748 clock 59.9Hz 1152x768 (0x61) 71.8MHz -HSync +VSync h: width 1152 start 1216 end 1328 total 1504 skew 0 clock 47.7KHz v: height 768 start 771 end 781 total 798 clock 59.8Hz 1024x768 (0x62) 63.5MHz -HSync +VSync h: width 1024 start 1072 end 1176 total 1328 skew 0 clock 47.8KHz v: height 768 start 771 end 775 total 798 clock 59.9Hz 800x600 (0x63) 38.2MHz -HSync +VSync h: width 800 start 832 end 912 total 1024 skew 0 clock 37.4KHz v: height 600 start 603 end 607 total 624 clock 59.9Hz 848x480 (0x64) 31.5MHz -HSync +VSync h: width 848 start 872 end 952 total 1056 skew 0 clock 29.8KHz v: height 480 start 483 end 493 total 500 clock 59.7Hz 720x480 (0x65) 26.8MHz -HSync +VSync h: width 720 start 744 end 808 total 896 skew 0 clock 29.9KHz v: height 480 start 483 end 493 total 500 clock 59.7Hz 640x480 (0x66) 23.8MHz -HSync +VSync h: width 640 start 664 end 720 total 800 skew 0 clock 29.7KHz v: height 480 start 483 end 487 total 500 clock 59.4Hz VGA-0 disconnected (normal left inverted right x axis y axis) Identifier: 0x54 Timestamp: 139873 Subpixel: no subpixels Clones: CRTCs: 0 1 2 3 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: load detection: 1 range: (0, 1) HDMI-0 disconnected (normal left inverted right x axis y axis) Identifier: 0x55 Timestamp: 139873 Subpixel: horizontal rgb Clones: CRTCs: 0 1 2 3 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: dither: off supported: off, on audio: auto supported: off, on, auto underscan vborder: 0 range: (0, 128) underscan hborder: 0 range: (0, 128) underscan: off supported: off, on, auto coherent: 1 range: (0, 1) -- You are receiving this mail because: You are the assignee for the bug.