Problems with DMProxy (Window Server)

Hi,

I just searched the Web the last days but I don't find any common article or solution to my problem. Since about I think four Weeks my iMac began to fade out the screen I become blue (10.6.8) or black (10.9.1) and I thought it will be because of the temperature (PowerSupply 80 degree, GPUDie 70 degree and CPU 55 degree, but this was since ever if some processes like eyeTV, Chrome, Safari, iTunes, iPhoto running at the same time), or because of an hardware fault of the monitor. But for now I think it is not.

I looked at the konsole and it shows up that every time the screen gets dark for one, two up to ten seconds,the windows server is starting new. But I don't know why.

-------------------------------------------------------------------------------- ----------------------------

20.01.14 12:37:46,647 WindowServer[104]: Received display connect changed for display 0x4272340

20.01.14 12:37:46,656 WindowServer[104]: Found 54 modes for display 0x04272340 [42, 12]

20.01.14 12:37:46,681 WindowServer[104]: Received display connect changed for display 0x3f003d

20.01.14 12:37:46,681 WindowServer[104]: Found 1 modes for display 0x003f003d [1, 0]

20.01.14 12:37:46,693 WindowServer[104]: Display 0x04272340: GL mask 0x1; bounds (0, 0)[1920 x 1200], 54 modes available

Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model 9c8d, S/N 0, Unit 0, Rotation 0

UUID 0xeca14e6b808003ccd9650c543aa7e488, ColorProfile { 2, "iMac"}

20.01.14 12:37:46,693 WindowServer[104]: GLCompositor: GL renderer id 0x01022608, GL mask 0x00000003, accelerator 0x00004173, unit 0, caps QEX|MIPMAP, vram 512 MB

texture max 8192, viewport max {8192, 8192}, extensions FPRG|NPOT|GLSL|FLOAT

20.01.14 12:37:46,693 WindowServer[104]: Display 0x003f003d: GL mask 0x2; bounds (2944, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

20.01.14 12:37:46,781 WindowServer[104]: Display 0x04272340: Unit 0: Startup Mode 1920 x 1200, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80001000, ioModeDepth 0x2, IOReturn 0x0

20.01.14 12:37:46,781 WindowServer[104]: Display added

20.01.14 12:37:46,781 WindowServer[104]: Display removed

20.01.14 12:37:46,784 WindowServer[104]: Display 0x04272340: GL mask 0x1; bounds (0, 0)[1920 x 1200], 54 modes available

Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model 9c8d, S/N 0, Unit 0, Rotation 0

UUID 0xeca14e6b808003ccd9650c543aa7e488, ColorProfile { 2, "iMac"}

20.01.14 12:37:46,784 WindowServer[104]: GLCompositor: GL renderer id 0x01022608, GL mask 0x00000003, accelerator 0x00004173, unit 0, caps QEX|MIPMAP, vram 512 MB

texture max 8192, viewport max {8192, 8192}, extensions FPRG|NPOT|GLSL|FLOAT

20.01.14 12:37:46,784 WindowServer[104]: Display 0x003f003d: GL mask 0x2; bounds (2944, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

20.01.14 12:37:48,682 WindowServer[104]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

20.01.14 12:37:48,739 WindowServer[104]: Display 0x04272340: Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 12)

20.01.14 12:37:48,766 WindowServer[104]: Display 0x04272340: Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 12)

20.01.14 12:37:48,782 WindowServer[104]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

20.01.14 12:37:48,842 WindowServer[104]: Display 0x04272340: Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 12)

20.01.14 12:37:48,871 WindowServer[104]: Display 0x04272340: Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 12)

20.01.14 12:37:54,382 com.apple.usbmuxd[59]: _SendAttachNotification Device f0:cb:a1:68:ab:3c@fe80::f2cb:a1ff:fe68:ab3c._apple-mobdev2._tcp.local. has already appeared on interface 6. Suppressing duplicate attach notification.

-------------------------------------------------------------------------------- ----------------------------

So I logged the DMProxy messages and they look like this:

-------------------------------------------------------------------------------- ----------------------------

01/20 12:40:48 pid:17898 uid:0 euid:501 Re-Launched with args:-login

01/20 12:40:48 pid:17898 uid:0 euid:501 Launched with args:-login

01/20 12:40:48 pid:17898 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:48 pid:17898 uid:0 euid:501 Enable active display aliases01/20 12:40:48 pid:17898 uid:501 euid:0 UpdateSharedDisplayProfiles()

01/20 12:40:48 pid:17898 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:48 pid:17898 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

01/20 12:40:48 pid:17899 uid:0 euid:501 Launched with args:-discovery

01/20 12:40:48 pid:17899 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:48 pid:17899 uid:0 euid:501 Enable active display aliases01/20 12:40:48 pid:17899 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:48 pid:17899 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

01/20 12:40:48 pid:17899 uid:0 euid:501 Re-Launched with args:-login

01/20 12:40:48 pid:17899 uid:0 euid:501 Launched with args:-login

01/20 12:40:48 pid:17899 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:48 pid:17899 uid:0 euid:501 Enable active display aliases01/20 12:40:48 pid:17899 uid:501 euid:0 UpdateSharedDisplayProfiles()

01/20 12:40:48 pid:17899 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:48 pid:17899 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

01/20 12:40:53 pid:17901 uid:0 euid:501 Launched with args:-discovery

01/20 12:40:53 pid:17901 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:53 pid:17901 uid:0 euid:501 Enable active display aliases01/20 12:40:53 pid:17901 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:53 pid:17901 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

01/20 12:40:53 pid:17901 uid:0 euid:501 Re-Launched with args:-login

01/20 12:40:53 pid:17901 uid:0 euid:501 Launched with args:-login

01/20 12:40:53 pid:17901 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:53 pid:17901 uid:0 euid:501 Enable active display aliases01/20 12:40:53 pid:17901 uid:501 euid:0 UpdateSharedDisplayProfiles()

01/20 12:40:53 pid:17901 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:53 pid:17901 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

01/20 12:40:53 pid:17902 uid:0 euid:501 Launched with args:-discovery

01/20 12:40:53 pid:17902 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:53 pid:17902 uid:0 euid:501 Enable active display aliases01/20 12:40:53 pid:17902 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:53 pid:17902 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

01/20 12:40:53 pid:17902 uid:0 euid:501 Re-Launched with args:-login

01/20 12:40:53 pid:17902 uid:0 euid:501 Launched with args:-login

01/20 12:40:53 pid:17902 uid:0 euid:501 DMProxy lock file descriptor = 3

01/20 12:40:53 pid:17902 uid:0 euid:501 Enable active display aliases01/20 12:40:53 pid:17902 uid:501 euid:0 UpdateSharedDisplayProfiles()

01/20 12:40:53 pid:17902 uid:0 euid:501 ColorSyncProfileCreateWithDisplayID(0x04272340)

01/20 12:40:53 pid:17902 uid:0 euid:501 CGSSetDisplayColorSpaceAndTransfer(0x04272340, "iMac")

-------------------------------------------------------------------------------- ----------------------------

I thought it could be the color profile but as I changed it. I had no success the randomize anoying black screen sometimes with three to six times repeating will arise serval times an hour.

So, I changes the OS from good runing 10.6.8 to the experimental 10.9.1 Mavericks (iOS sh.t with no spces etc.) and I installed a 500 GB SSD from samsung to reduce the heat (which brought nothing, because the CPU, GPU and the PowerSupply are the heating reason) but with no effect to the temperature and the turning black of the screen.

the screen also turns black or get a respawn if I turn on the internal fans to "high" so that the upper components cool down to about 40, 45 and 50 degrees. So, it has nothing to do with the temperature. If I have the time I will install windows 7 the next days with bootcamp to determine that it is wether an hardware or an software error/problem. If the iMac don't show the problem on windows it defently ist a software/OS problem.

At that time I am at the end of my knowledge concering the iMac and Apple OS and I hope the somebody could help me. Sorry for my rusty english,

best regards,

Christian Ullmann

P.S.: Allready did that usually stuff like repairing the rights, resetting PRAM etc. ...