Ethernet=display blackout

Hello,
I don't know what this means or how to fix it...
My internet connection was all wireless via Airport, but there was so much interference in my building that I decided to switch to ethernet. Internet works, but periodically the display goes totally black for a split second. This even happens when Safari is off. Any ideas? Suggestions? Thanks.
Jen
The setup:
Cable Modem > Airport > Ethernet Cat6 50feet patch cable > MacPro
The cable is attached to the port labeled 1, if that means anything...

--update: problem was apparently not related to ethernet. defective display.

Similar Messages

Macbook Pro - Display Blackouts

Just curious if anyone is having this issue on their Macbook Pro 2010 model. I've got an early 2010 model (i7 2.66 with GT330M GPU). Apple AHT shows no problems. All updates installed (10.7.3), including Apple's fix for this problem. However yesterday it just went bonkers all together!
Sunday, 12 February 2012
17.06: Display Blackout
20.43: Display Blackout
20.46: Display Blackout
20.54: Display Blackout
21.47: Display Blackout
Here's an extract of the report...
Kernel_2012-02-12-170605_computername.panic
Sun Feb 12 17:06:03 2012
panic(cpu 0 caller 0xffffff7f80955907): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff81151f7000 0x0a5480a2, D0, P3/4
Backtrace (CPU 0), Frame : Return Address
0xffffff80f1982a60 : 0xffffff8000220702
0xffffff80f1982ae0 : 0xffffff7f80955907
0xffffff80f1982b70 : 0xffffff7f80a45a64
0xffffff80f1982bc0 : 0xffffff7f80a45b24
0xffffff80f1982c20 : 0xffffff7f80cf2749
0xffffff80f1982d60 : 0xffffff7f80a64bad
0xffffff80f1982d90 : 0xffffff7f8095f282
0xffffff80f1982e40 : 0xffffff7f8095ab84
0xffffff80f1983030 : 0xffffff7f8095be57
0xffffff80f19830f0 : 0xffffff7f817c2336
0xffffff80f1983200 : 0xffffff7f817c282c
0xffffff80f1983220 : 0xffffff7f817bf989
0xffffff80f1983270 : 0xffffff7f817ee4ce
0xffffff80f19836c0 : 0xffffff7f817890aa
0xffffff80f19836f0 : 0xffffff7f817f1c3e
0xffffff80f1983770 : 0xffffff7f817dc44b
0xffffff80f19837d0 : 0xffffff7f817dc846
0xffffff80f1983820 : 0xffffff7f817dcabb
0xffffff80f19838b0 : 0xffffff7f817dd80f
0xffffff80f19838e0 : 0xffffff7f817950b0
0xffffff80f1983aa0 : 0xffffff7f817ddf68
0xffffff80f1983b60 : 0xffffff7f81792119
0xffffff80f1983bc0 : 0xffffff800065239e
0xffffff80f1983be0 : 0xffffff8000652c7a
0xffffff80f1983c40 : 0xffffff800065341b
0xffffff80f1983d80 : 0xffffff80002a3b78
0xffffff80f1983e80 : 0xffffff8000223006
0xffffff80f1983eb0 : 0xffffff8000214829
0xffffff80f1983f10 : 0xffffff800021bb58
0xffffff80f1983f70 : 0xffffff80002aeb80
0xffffff80f1983fb0 : 0xffffff80002d8383
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(7.1.8)[94BA87BA-B128-3310-9860-98EC67AB7FAF]@0xffffff7f808 f5000->0xffffff7f80bcefff
            dependency: com.apple.iokit.IOPCIFamily(2.6.8)[F63D4ABE-42DA-33EF-BADD-3415B0CB0179]@0xffff ff7f80880000
            dependency: com.apple.iokit.IONDRVSupport(2.3.2)[4B3F84DC-18B3-3897-BC56-4E3940878047]@0xff ffff7f808e3000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.2)[FE536983-1897-3D6B-965E-24B5A67080DA]@0 xffffff7f808ab000
         com.apple.nvidia.nv50hal(7.1.8)[7596DB8C-AE9D-3C87-B11A-0ED8F940CAF8]@0xffffff7 f80bcf000->0xffffff7f80ef0fff
            dependency: com.apple.NVDAResman(7.1.8)[94BA87BA-B128-3310-9860-98EC67AB7FAF]@0xffffff7f808 f5000
         com.apple.GeForce(7.1.8)[61FD1644-DA39-3645-9380-7F490FB000DB]@0xffffff7f817870 00->0xffffff7f81846fff
            dependency: com.apple.NVDAResman(7.1.8)[94BA87BA-B128-3310-9860-98EC67AB7FAF]@0xffffff7f808 f5000
            dependency: com.apple.iokit.IONDRVSupport(2.3.2)[4B3F84DC-18B3-3897-BC56-4E3940878047]@0xff ffff7f808e3000
            dependency: com.apple.iokit.IOPCIFamily(2.6.8)[F63D4ABE-42DA-33EF-BADD-3415B0CB0179]@0xffff ff7f80880000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.2)[FE536983-1897-3D6B-965E-24B5A67080DA]@0 xffffff7f808ab000

That's the classic one. Checkout https://discussions.apple.com/thread/3278966. At the end Logic board replacement is the only solution.

My MBP mid 2010 display blackout and froze while working but my keyboard light will still light up. Won't be able to retrieve it and have to hard shutdown. Sometimes it happens a lot. Wether it connected to power or not, it will blackout on and off. Pleas

My MBP mid 2010 display blackout and froze while working but my keyboard light will still light up. Won't be able to retrieve it and have to hard shutdown. Sometimes it happens a lot. Wether it connected to power or not, it will blackout on and off. Please advice what shall I do.

Do you have a 15" mid-2010? If so then your problem is surely...
Mid-2010 15" MacBook Pros - the bad NVIDIA GPU
If you're having frequent kernel panics with your 15" mid-2010, or intermittent screen problems, the problem is, more than likely, the faulty NVIDIA GPU found in a number of those machines.
Here's just a sample of a kernel panic log that points to the faulty NVIDIA card:
Kernel Extensions in backtrace (with dependencies):
         com.apple.GeForce(6.4.0)@0x82ac4000->0x82b7afff
            dependency: com.apple.NVDAResman(6.4.0)@0x834a0000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x82fd3000
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7a802000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x8301b000
         com.apple.nvidia.nv50hal(6.4.0)@0x83c05000->0x84019fff
            dependency: com.apple.NVDAResman(6.4.0)@0x834a0000
         com.apple.NVDAResman(6.4.0)@0x834a0000->0x8378dfff
            dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7a802000
            dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x82fd3000
            dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x8301b000
Here's the "official" Apple take on the issue - but the very real kernel panics need not be preceded by 'Intermittent black screen or loss of video'... in fact, you might not experience any video problems at all. Although video problems can certainly be a portent of things to come…
So what can you do? Print out a copy of your kernel panic and a copy of the Knowledge Base article and take them, along with your machine, to your local Apple Store or an Apple Authorized Service Provider. The unfortunate thing is that many people have passed the “three years from date of purchase” now and Apple is not honoring the free logic board replacement for many users. Some dealers seem to be making some exceptions for those past the three year mark, but don’t count on it…
Good luck,
Clinton

HP Pavilion DV6 2190us Since November constant display blackouts & freezes

Seriously, I will never ever pay $1000 for another pc and I will never ever buy another HP product.
Hewlett Packard was my gold standard, but not anymore!
To begin, a month before my one year warranty ended, the fan on my pc went out and the laptop would
not let me access my files. I was in the middle of college finals.
HP customer service said that i could pay for express service and there was no way I could have someone
else replace the fan because it was INTEGRATED.
He assured me that I would get it back with a turn around of 4 days so I could get to my files for my college classes.
What happened? I get a call telling me that it will cost me $300 because I have a cracked screen.
I said it was NOT cracked when I had it.
The guy told me that he would send me pictures of it which he NEVER DID!
Bottom line. I did NOT pay $300. So what did I get back? A laptop with a cracked hinge that was not cracked
when I had it.
And an icon on the desktop that was labeled "old files"
and was EMPTY!
All my computer files were NOT reloaded.
I called and what did the various reps I spoke to say?
Oh, well, there's NOTHING YOU CAN DO. THEY"RE JUST GONE!
Wow, what great service!!
I will spare you all the gory details of what I had to do to complete my college classes.
It left my hands with a severe case of carpel tunnel and I couldn't pick up anything or use them for over 2 months
because of all the typing I had to do to re research TWO 22 page essays that were due within 2 weeks...all thanks
to the idiot that did not reload my files.
And the whole purpose of paying express fees to get it done was to get those vital files back.
It also killed my 4.0 gpa I worked very hard to maintain for 5 years.
Since November, the laptop has had continual blackouts. Sometimes it recovers, other times it remains black and
keeps running, other times it goes black and stops running or goes gray.
The USB ports are dysfunctional and sometimes I boot up and the optical mouse works on one port or the other or
neither. Sometimes it works for awhile, then stops and the finger pad works but finally craps out, too.
Every time I boot up, it is like a different laptop and I have to check the power settings, the USB ports, update the
mouse drivers,
It's a mess.
It may crash in 5 minutes or 5 hours. It's always a different time frame.
But it is a given that I have to turn it off and reboot...sometimes several times.
I can't depend on it for the next semester of college, so I am going to purchase a new laptop
NOT an HP product.
The Nvidia display drivers...I've tried them all
They all suck.
Why the mouse and USB ports ares dysfunctional, I don't know
Why the power settings change when I reboot, I don't know
At first, i thought it was internet explorer 9
And resetting it seems to work, but only for awhile.
In fact, everything I try to correct all this stuff seems to work...for awhile.
I've probably rebooted this **bleep** thing over a thousand times since November.
I was so desperate that I tried restore image to factory settings
As soon as it rebooted, the screen froze.
This has been the worst experience I've ever had with a computer.

Thanks, 'cat!
I did buy a Seagate 2 T external drive that was on sale at I think Best Buy.
I read that other people had the same problem with other hinged laptops
The thing is that the guy who called me after they got my laptop express told me that the MONITOR
was cracked and he would send me pictures
I said the monitor wasn't cracked when I had it!
then he went away and came back and said the the hinge was cracked
I told him it wasn't when I HAD IT!!
I inspected it before I put it in the * box.
They just wanted $300 and didn't want me to skate with getting a fan replaced on my warranty
I think HP technical is very corrupt.
I do not trust any of their phone representatives.
The girl in India who told me to take a screwdriver to the bottom of the laptop was an idiot
I rebooted a few times and it finally booted itself back up again
That was about 4 months after I got it.
Thanks!!

Ethernet/Displays/Thunderbolt/Ports

I want to use my imac as a second screen for my macbook pro but my minidisplay port on the macbook pro is being used up by the thunderboltd external harddrive, so even if i bought a minidisplay--> minidisplay cable i wouldn't be able to use it.......at this point i don't care if the displays are mirrored. Obviously using it as an additional monitor would be awesome, but if at this point i can just get these computers to be mirrored without the use of minidisplay port (again, because the thunder bolt hard drive is connected) that would be satisfactory.
Basically what i'm trying to do is is run a DAW software off my macbook pro because it is an i7 and the imac i have is an i3. But for obvious reasons i'd rather use the bigger screen of the imac. But i've connected the interface and the midi cables, all of my usb ports are full, therefore the TB drive has to be connected through the TB port..a.k.a the mini display. thanks!
If the ethernet option is not possible, any ideas on how to use my TB drive while using my imac as an additional screen, simultaniously?

You can use a HDMI to DVI adapter if the display resolution is not greater than 1920 x 1200.
<http://startech.com/Cables/Audio-Video/HDMI/>
or you could use wireless for your network connection.
<http://www.apple.com/airport-express/>
If you use 5GHz, it should be nearly as fast as Ethernet.

Lenovo T410 & 4337 dock = display blackouts

I've got a Lenovo T410 computer. I just got a 4337 docking station, and I'm having a dispay problem that is making it almost unusable.
Every so often, for no discernable reason, the image on my external monitor blacks out. After a second or two it reappears. These blackouts often happen in clusters of three or four, a few seconds apart; then the display works normally for as long as half an hour.
This is at least partly a software problem, not a hardware problem. I know this because when the display reappears, the desktop and inactive windows reappear first, leaving a black hole where the active window should be. A half second or so later, the active window is restored. Sometimes the order is reversed: the active window reappears first, followed by the rest of the display. In either case, there is no way it could happen if the problem were purely hardware.
I've noticed a few other bits of weirdness associated with USB ports. When I connect a USB device while the computer is docked, that often causes the monitor to black out momentarily. The first time I used the dock I attached a smartphone to one of the USB ports before turning the computer on. As soon as I turned it on the smartphone buzzed and flashed its screen, then the monitor's image blacked out; when the monitor's image reappeared the phone buzzed again. This continued until I unplugged the phone.
The whole setup is: a T410 running Windows 7 Professional; 4337 docking station; monitor attached to the docking station by a DisplayPort-to-HDMI cable.

Hi Orthoducks,
Thank you for the reply!
Regarding the drivers, you can check with the below drivers link and in that you can select Power Management Category to download.
The same similar issue which other user was facing was resolved the on following in the same process which was given, please click here to verify if your issue resembles to that.
Below is the link to enter the downloads page and download latest application accordingly, please click on "Select Product" then in "QUICK PATH" enter the MTM no. select the exact model.
http://support.lenovo.com/en_US/downloads/default.page#
Hope this helps.
Best regards,
Hemanth Kumar
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Macbook Pro Mid 2012 15" Retina - Display blackout on restart.

I am having a major issue with my 15" Retina MacBook Pro (mid 2012). When I shutdown the Macbook, and boot it again later, it is not showing anything on screen.. Even the grey screen on bootup.. Completely black.. I can hear the startup chime, and a bit later, keyboard backlight turns on, which is indicating that the boot process is completed.. But no display.. Even for 15-20 min.. I cant even access Bootcamp and Apple Hardware test.. (Even if they are available, I can't see them on screen.. Fully black.. And I can't know where to click on what, in that darkness..)
But one small thing I found was, when the keyboard lights up, I just closed the lid.. It then goes to sleep.. Again opened it.. I found the screen working normal, after a small flashing of Blue screen.. I'm thinking that this problem occurs only at startup, but not at sleep.. This is not a solution, but a temporary remedy..
Can anybody help me over this issue..??

Hey SreeHarsha Vardhan,
Thanks for using Apple Support Communities.
Sounds like you are having trouble with the screen on your Macbook. If you are not getting anything on the screen, take a look at this article.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Have a nice day,
Mario

External Video Display Blackout

I cant find a way of sending a Black signal to the external monitor.
I am using Powerpoint 2004 and I want to work on my project without sending the video signal to the projector (or unplugging the signal cable)
Is there a handy keyboard shortcut I can use to toggle a blackout signal to the projector?

It's probably a small amount of VRAM corruption that's causing it. By sleeping it causes it to be reset and refreshed. Be sure to have your software up to date as new drivers are often included in these updates.

Iphone4 display blackout BUT camera light is ON. Help!!

This morning managed to reply SMS then was scrolling over the phone and got some hanging issue. Managed to retrieve it back. Den suddenly my camera light on and the phone went totally blackout. Tried to reset it by pressing the top button but doesn't work. Den I tried top button and the menu button at the same time but it doesn't help. Did this for a good 1 min! I could receive call but I can't attend to the call. No idea who's calling me either. Don't have earphones to test attending the call with it. PLS HELP! I have this phone for almost a year now.

To Apple Discussions!
See Article http://support.apple.com/kb/HT2090 How to Troubleshoot iSight
If the Article solutions do not work, then I suggest that you do a forum search. Your issue has been posted several times & possible solutions have been mentioned. To start you off, check out the following thread: http://discussions.apple.com/thread.jspa?threadID=1763897&tstart=25
Good luck!

G460 Display Blackout / System Hang

Hi , I am Krishna here with a G460a(i3,350M), I bought this laptop on last week. Now have found a problem that is really annoying. When the computer went to sleep mode automatically after being idle for some time, I really have a problem of waking it up and have to force a shutdown from power button, but the all LED is ON. Could any one can help me on this ???????? pls help me..
Lenovo G460
SN: CBGxxxxxxx
Moderator Note; s/n edited for members own protection

Hi,
Bios version 25 and above should fix the problem. Otherwise please post a feedback.
Please refer to this article G460 cannot wake up from sleep/standby/hibernation
Thanks!
Regards,
Cleo
WW Social Media
T61, T410, x240, Z500, Flex 14
Important Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.
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My ethernet port on the thunderbolt display doesn't work anymore.

I recently updated to 10.8.4 on a Mac book pro. I use it docked on a thunderbolt display.
The ethernet cable is plugged into the display.
Today I switch the computer on and the dot for ethernet remains orange with "etat inconnu". I tried to reboot, unplug the display nothing worked. I know the ethernet cable works fine.
Anyone has any idea?
Thanks,

You could try unplugging the TB display for a few seconds and then plug back in. If that does not work go to preferences, network and remove the ethernet display and then add the ethernet display (using the + at the bottom). See if that works. I had to do that on mine to fix a similar issue.

Sudden Display Sleep Mode

This is an issue that I've had for a few months now, I don't know exactly when it started.
Issue:
I will be on computer, doing whatever, and the display will randomly go to sleep. Rest of computer seems to be running fine (ie - audio from browser or itunes would continue playing) and then I click any key and it will turn back on.
I've posted a TON of logs over in MacRumors forum, in case you want to check them out: http://forums.macrumors.com/showthread.php?p=15627118&posted=1#post15627118
Most recent Log - This is EVERYTHING that happened in the log between two display blackouts The previous blackout time is the section of the log displayed in bold, so the display first when to sleep at 9:17am, and the next one at 9:23am. Hope someone can help!
2012-09-11 09:16:18 -0400 Google Chrome Helper[63841]: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (1100)
2012-09-11 09:17:39 -0400 WindowServer[81]: Created shield window 0x5026 for display 0x042803c0
2012-09-11 09:17:39 -0400 WindowServer[81]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:17:39 -0400 WindowServer[81]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:17:43 -0400 WindowServer[81]: handle_will_sleep_auth_and_shield_windows: no lock state data
2012-09-11 09:17:58 -0400 Dock[140]: no information back from LS about running process
2012-09-11 09:18:21 -0400 universalaccessd[63931]: CGSGetZoomParameters: Invalid connection
2012-09-11 09:18:21 -0400 universalaccessd[63931]: CGSSetZoomParameters: Invalid connection
2012-09-11 09:18:21 -0400 universalaccessd[63931]: CGSSetZoomParameters: Invalid connection
2012-09-11 09:19:59 -0400 kernel[0]: nspace-handler-set-snapshot-time: 1347369601
2012-09-11 09:20:17 -0400 com.apple.mtmd[53]: stat on /Users/Phil/Library/Application Support/Google/Chrome/Default/History Index 2012-09-journal: No such file or directory
2012-09-11 09:20:17 -0400 com.apple.mtmd[53]: stat on /Users/Phil/Library/Application Support/Google/Chrome/Default/History Index 2012-09-journal: No such file or directory
2012-09-11 09:20:23 -0400 coreservicesd[34]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyChildDeath to notificationID=7974
2012-09-11 09:20:23 -0400 coreservicesd[34]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyChildDeath to notificationID=7974
2012-09-11 09:20:37 -0400 Safari[64009]: CGContextClipToRect: invalid context 0x0
2012-09-11 09:23:22 -0400 WindowServer[81]: Created shield window 0x5068 for display 0x042803c0
2012-09-11 09:23:22 -0400 WindowServer[81]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:23:22 -0400 WindowServer[81]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:23:41 -0400 WindowServer[81]: handle_will_sleep_auth_and_shield_windows: no lock state data

Why do you ask about Witness? I just had the same problem - I was typing text in emacs and suddenly the screens went blank, and screen lock was enabled, and I see the same '...screenshot' messages in the log.
Running the latest OS on a MBP.
Come to think of it: I do have a 'hot corner' configured in System Prefs that blanks and locks the screen (setting:'Put Display to Sleep), so it's fairly likely something (e.g. a trackpad glitch) triggered it. Do others have this? (Please 'Like' if this resolves the issue.)
Mar 18 11:41:47 name WindowServer[134]: CGXSetWindowBackgroundBlurRadius: Invalid window 0xffffffff
Mar 18 11:41:47 name loginwindow[107]: find_shared_window: WID -1
Mar 18 11:41:47 name loginwindow[107]: CGSGetWindowTags: Invalid window 0xffffffff
Mar 18 11:41:47 name loginwindow[107]: find_shared_window: WID -1
Mar 18 11:41:47 name loginwindow[107]: CGSSetWindowTags: Invalid window 0xffffffff
Mar 18 11:41:47 name loginwindow[107]: find_shared_window: WID 50
Mar 18 11:41:48 name WindowServer[134]: Created shield window 0x4c67 for display 0x04272040
Mar 18 11:41:48 name WindowServer[134]: Created shield window 0x4c68 for display 0x1cab5d01
Mar 18 11:41:48 name WindowServer[134]: device_generate_desktop_screenshot: authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001)
Mar 18 11:41:48 name WindowServer[134]: device_generate_lock_screen_screenshot: authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001)
Mar 18 11:41:48 name WindowServer[134]: device_generate_desktop_screenshot: authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001)
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001), lock state 3
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: err 0x0
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7f843bc31b20(2002), shield 0x7f843bc2f410(2001), lock state 3
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: err 0x0
Intentionally triggering the hot corner produces pretty much the same log entries.

Thunderbolt display and Mavericks

I have a Thunderbolt Display. Since I installed Maverick, I lose my Ethernet Display connection everytime my laptop turn into repose. I have to plug again the thunderbolt conexion to be conected to internet or I have to restart my computer.

I went to the Genius bar to get a diagnostic. They checked the error log. Check yours. The events or stuff listed between "Kernel Extensions in backtrace" and "BSD .. blablabla" (see below) describe why the kernel did panic.
They told me that the issue is the TB plug into the MBP connected to my logic board. Result: they are going to change the logic board (for free because I'm still with the warranty. Otherwise the cost is something like $500.00). That may also explain why the application icons in launchpad are gone.
I hope it will help!
Kernel Extensions in backtrace:
         com.apple.iokit.IOThunderboltFamily(2.8.5)[26C768E4-D664-3A86-B6F0-694DEA883070 ]@0xffffff7fb13dd000->0xffffff7fb1496fff
         com.apple.driver.AppleThunderboltIP(1.0.10)[712605C8-FF33-3AEC-847B-BA43F6789DB 4]@0xffffff7fb1f1e000->0xffffff7fb1f34fff
            dependency: com.apple.iokit.IOPCIFamily(2.8)[447B4896-16FF-3616-95A2-1C516B2A1498]@0xffffff 7fb08ba000
            dependency: com.apple.iokit.IOThunderboltFamily(2.8.5)[26C768E4-D664-3A86-B6F0-694DEA883070 ]@0xffffff7fb13dd000
            dependency: com.apple.iokit.IONetworkingFamily(3.2)[1EAD69CB-6AB4-387F-94C4-8FAAFF28354C]@0 xffffff7fb1247000
BSD process name corresponding to current thread: kernel_task

June 9 Software Update affects Apple Display

After rebooting from the recent apple software update, the power button on my Apple display remained flashing. The morse code implied something to do with an error in my video card or display connection.
Since I had a motherboard replaced 4 years ago, I have had sporadic display blackouts. I haven't had one for 2 years, all has been fine.
To fix the current display problem, I unplugged the video card, waved my hand over it and said nice things to it, plugged it back in and the display is now working properly, no flashing button and it is considerably brighter.
The card is a ATI Radeon 9600 Pro which is getting hard to find. I don't know if my problem is the card or the plugin socket but the effort has worked once again.

Hi Topsfield
If I was you I would get a better card . I use the nvidia GeForce 6800GT DDL . Its a great video card but the price is a bit much for it , but it rock with graphics from it . I am powering a dell 30 in screen fine and the color is great . I had the ATI 9600 but I could not run a 30 in screen on my computer . I got mine from ebay and it cost me 250.00 dollars or so .I dont remember the price but thats about it .The card you have its ok but if you want to see some real graphics like in games and other apps .
thats just my two cents about video cards .

T530 buggy dual GPU's

I purchased a kind of souped-up T530 with the sole purpose of making it my entertainment laptop with the intention of connecting it to a big screen LCD via the DisplayPort cable, basically to watch internet streaming video or DVDs. The T530 came with two GPUs, an NVIDIA 5400M and an "onboard" Intel HD Graphics 4000. I have had some buggy issues with the way that the two GPUs communicate with each other since the beginning, but after some experimentation - maybe I have finally fixed my problem. Since I had very little luck finding any documentation of the types of issues I was having, I am posting this here for any others.
Since day 1, the NVIDIA Control Panel Application (which you must use to configure multiple displays) has listed the DisplayPort (the TV) as being under the control of the NV5400M and the laptop display as being under the control of the Intel HD Graphics 4000. Having the two displays under the control of different GPUs presented a bunch of problems, such as displays suddenly blacking out in the middle of movies and DVD's only playing on one screen or the other (never both). I had monkeyed around with this for months and just thought this was the way that it was. See below screen print for how NVIDIA Control Panel saw the situation:
Link to image 1
I was also having power management issues (another thread here) and someone suggested that I change the GPU configuration in the BIOS. I had never done this before, so I went in and under Config-Graphics Device, there are three choices - none of which are particularily informative:
1. Integrated Graphics mode will achive longer battery life.
2. Discrete Graphics mode will achieve higher graphics performance.
3. NVIDIA Optimus mode runs as Integrated Graphics mode and Discrete Graphics is enabled on demand. NOTE: NVIDIA Optimus mode should not be used if using XP.
I had apparently been running with option 3, NVIDIA Optimus mode which seemed to make the two displays sort of choppy, where if the laptop display woke up from black screen, it would black out a second time for a few seconds as if the two GPUs were trying to sync up to each other. Back to BIOS - I changed the setting to option 2, Discrete Graphics mode and re-booted.
The result was that the multiple display blackouts stopped happening, but the laptop display and DisplayPort display still came up as each being under the control of a different GPU. So, one of my problems was resolved, but I still couldn't watch DVDs simultaneously on both displays (a feature called Theatre Mode on AMD gpu's).
I also tried monkeying around with the Intel HD 4000 control panel, which would never allow multiple displays and seemed set on only wanting to control the laptop screen. I don't think the Intel HD4000 even has access to the DisplayPort. It is very confusing having two graphics control panels, an NVIDIA one and an Intel one. Only the NVIDIA Control panel allows any manipulation of a secondary screen, btw.
So, I tried going back to BIOS again to see what would happen if I chose option 1, Integrated Graphics mode. This time, on re-boot - the NVIDIA Control panel wouldn't even launch, so it must be turned off with this mode. So, the only option is to try using the Intel control panel which won't even recognize secondary screens at all. So, apparently with Integrated Graphics mode, you lose any ability of using the DisplayPort at all.
I went back yet again and changed the BIOS back to option 2, Discrete Graphics mode - thereby putting the NVIDIA 5400M back in business. But guess what, this time the NVIDIA Control panel shoiwed both the laptop screen and the DisplayPort both under control of the NVIDIA gpu only. This resolved the problem of the DVD's. Now DVDs play simultaneously on both displays now that they are both under the control of a single GPU.
Link to image 2
I have found this whole experience (months actually) of the dual GPUs to be very ill documented and very buggy. To think that I only corrected my problem by changing the BIOS settings four times is incredible to me. Anyway, I suppose this post will just float down into obscurity, but I had been having ZERO luck finding anything about this topic at all on the boards.
Moderator note: large image(s) converted to link(s): About Posting Pictures In The Forums

Even more on this topic. I ended up re-booting for an ulrelated reason and found my display adapter configuration again back to the split scenario with the Intel HD 4000 in charge of the laptop display and the NVIDIA NVS5400M in charge of the display port. I was surprised to see my configuration return back to the undesired configuration that was causing me so many problems.
It turns out there is also a secondary setting within BIOS Config-Graphics Device, right beneath the three choices for the graphics mode I had mentioned before. The setting is called OS Detection for NVIDIA Optimus and it says "If Enabled, System BIOS automatically switches Graphics device setting to NVIDIA Optimus Mode if the OS supports this feaure, and to Discrete Graphics mode if the OS does not support it".
So, my secondary setting had been ENABLED, resulting in my request for Discrete Graphics mode (#2 above) being changed automatically back to NVIDIA Optimus Mode (#3 above). I changed this setting to DISABLED, changed the mode back to Discrete Graphics (#2) and have re-booted a few times. It looks like it should stay in Discrete Graphics mode for good, I am hoping.
Just playing around with this BIOS setting a little, I can boil it down to this:
If Integrated Graphics mode is chosen, only the Intel HD4000 gpu is active in Device Manager, the NVIDIA gpu is completely de-activated. With this mode, there is no ability for a second display at all. I suppose the idea here is that you are completely running on battery power and wouldn't have any secondary displays attached anyway.
If Discrete Graphics mode is chosen, only the NVIDIA NVS5400M gpu is active in Device Manager, the Intel HD4000 gpu is completely de-activated. With this mode, there is an ability to have a second display via the Display Port, and the NVIDIA gpu takes charge of both the primary and secondary displays. While it may be the most power consumptive, it works the best for actually viewing video.
If NVIDIA Optimus mode is chosen, both the Intel HD4000 gpu and the NVIDIA NVS5400M gpu are active in device manager. With this mode, each gpu takes charge of one of the displays and must try and communicate with each other with regard to video rules and power consumption (I have found it to be buggy). Also, the switch setting mentioned above indicate that this is the default setting unless you specifically tell it not to be.
I am mostly happy to finally understand what had been happening and it appears that by me putting the T530 into Discrete Graphics mode, that multiple power state errors, random screen black-outs, and inability to view DVDs correctly were finally corrected after months of mystery. This seems to be a very little documented problem, as I have been searching for the answer for months...

Ethernet=display blackout

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