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GodwinC
10-03-2012, 12:36 PM
Hi there,

It seems that the driver can wake up the display from sleep a finite number of times (I think 2?).. before having to reboot.. removing the USB cable and replugging it doesn't help. Even if I change the resolution, the screen will flicker but nothing comes on.

My eVGA device is used as a reading device at 90Degrees rotation. It just doesn't wake up after sleep (even unplugging and replugging the device USB).. unless I restart the machine.. which is a pain in the butt. Is there a logging feature that we can enable?

The console doesn't give a whole lot of information when on the status of the driver.. but I think the area below gives some clue to my situation:


2012-10-03 2:26:08.145 AM WindowServer[85]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
2012-10-03 2:26:08.152 AM WindowServer[85]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
2012-10-03 2:26:08.202 AM WindowServer[85]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-03 2:26:08.203 AM WindowServer[85]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-03 2:26:08.203 AM WindowServer[85]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-03 2:26:08.204 AM WindowServer[85]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-03 2:26:08.225 AM WindowServer[85]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-03 2:26:08.225 AM WindowServer[85]: Display 0x04273740: MappedDisplay Unit 0; ColorProfile { 2, "iMac"}; TransferTable (256, 3)
2012-10-03 2:26:08.226 AM WindowServer[85]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-03 2:26:08.226 AM WindowServer[85]: Display 0x2b34488d: MappedDisplay Unit 1; ColorProfile { 3, "DELL U2212HM"}; TransferFormula (1.000000, 1.000000, 1.000000)
2012-10-03 2:26:27.435 AM WindowServer[85]: Received display connect changed for display 0x3f003f
2012-10-03 2:26:27.451 AM WindowServer[85]: Created shield window 0x27bd for display 0x2b38400f
2012-10-03 2:26:27.452 AM WindowServer[85]: handle_will_sleep_auth_and_shield_windows: no lock state data
2012-10-03 2:26:27.817 AM WindowServer[85]: MPServiceForDisplayDevice: Invalid device alias (0)
2012-10-03 2:26:27.817 AM WindowServer[85]: MPServiceForDisplayDevice: Invalid device alias (0)



When it wakes up it displays:

2012-10-03 6:06:26.332 AM WindowServer[80]: Created shield window 0x171 for display 0x04273740
2012-10-03 6:06:26.338 AM WindowServer[80]: Created shield window 0x172 for display 0x2b34488d
2012-10-03 6:06:26.345 AM WindowServer[80]: Created shield window 0x173 for display 0x2b38400f
2012-10-03 6:06:26.345 AM WindowServer[80]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-10-03 6:06:26.352 AM WindowServer[80]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
2012-10-03 6:06:26.635 AM WindowServer[80]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-10-03 6:06:26.643 AM WindowServer[80]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-10-03 6:06:26.643 AM WindowServer[80]: MPHWCopyPixels: Bad data or row bytes alignment (0x123677000, 0x1068)
2012-10-03 6:41:12.015 AM WindowServer[80]: handle_will_sleep_auth_and_shield_windows: no lock state data
2012-10-03 6:41:12.018 AM WindowServer[80]: handle_will_sleep_auth_and_shield_windows: no lock state data
2012-10-03 6:41:12.065 AM WindowServer[80]: handle_will_sleep_auth_and_shield_windows: no lock state data

Symonty
10-15-2012, 06:04 AM
It sometime takes minutes but eventually the screens return.

Also I can get it to return if I move them round in the arrangement window in the display control panel "arrangement" tab.

tlittleone
10-30-2012, 11:31 PM
I have a similar problem with the same code in console as you show, but it happens while I'm working, giving me a blue screen on both macbook pro and a viewsonic monitor. Sometimes the blue screens come and go several times for varying lengths of time (a second or two or three). Could the computer be trying to go to sleep?