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Powerbook G4 DVI: Monitor keeps going to sleep

Message #1 - Posted 2007/06/21 - navti

I have a Powerbook G4 DVI.

When I boot the system the screen is black, The only way I can get the monitor to come on is to close the lid and put the computer to sleep. waking it from sleep activates the monitor.

sometimes i have to repeat the process of putting the computer to sleep and waking it several times before the monitor comes on.

is this a MOBO issue ? (i read someone mention an inverter card ) .

Message #2 - Posted 2007/06/21 - navti

more information ..........

I tried to connect to an SMB network share and got the following error

"You Need to restart your computer . Hold down the power button or press Restart""

After restart I got a dialog iofmring me there had been a problem with X and this was the problem :

Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=3D0x000000009B13A307 PC=3D0x000000000029EE9C
Latest crash info for cpu 0:
Exception state (sv=3D0x20BCFC80)
PC=3D0x0029EE9C; MSR=3D0x00009030; DAR=3D0x9B13A307; DSISR=3D0x400000= 00;
LR=3D0x00302210; R1=3D0x0CC93C10; XCP=3D0x0000000C (0x300 - Data access) Backtrace:
0x003021E0 0x2146181C 0x000912A8 0x00091514 0x00044C18 0x0002921C 0x000233F8 0x000ABCAC 0xFF000000
Kernel loadable modules in backtrace (with dependencies): com.apple.filesystems.smbfs(1.3.7)@0x2143b000
Proceeding back via exception chain:
Exception state (sv=3D0x20BCFC80)
previously dumped as "Latest" state. skipping... Exception state (sv=3D0x21056780)
PC=3D0x9000B348; MSR=3D0x0200D030; DAR=3D0x21467640; DSISR=3D0x400000= 00;
LR=3D0x9000B29C; R1=3D0xBFFFF4E0; XCP=3D0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.10.0: Wed May 23 16:50:59 PDT 2007; root:xnu-792.21.3~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x000952D8 0x000957F0 0x00026898 0x000A8004 0x000AB980 Proceeding back via exception chain:
Exception state (sv=3D0x20BCFC80)
PC=3D0x0029EE9C; MSR=3D0x00009030; DAR=3D0x9B13A307; DSISR=3D0x400000= 00;
LR=3D0x00302210; R1=3D0x0CC93C10; XCP=3D0x0000000C (0x300 - Data access) Backtrace:
0x003021E0 0x2146181C 0x000912A8 0x00091514 0x00044C18 0x0002921C 0x000233F8 0x000ABCAC 0xFF000000
Kernel loadable modules in backtrace (with dependencies): com.apple.filesystems.smbfs(1.3.7)@0x2143b000
Exception state (sv=3D0x21056780)
PC=3D0x9000B348; MSR=3D0x0200D030; DAR=3D0x21467640; DSISR=3D0x400000= 00;
LR=3D0x9000B29C; R1=3D0xBFFFF4E0; XCP=3D0x00000030 (0xC00 - System call)

Kernel version:
Darwin Kernel Version 8.10.0: Wed May 23 16:50:59 PDT 2007; root:xnu-792.21.3~1/RELEASE_PPCModel: PowerBook3,4, BootROM 4.3.7f3, 1 processors, PowerPC G4 (2.1), 800 MHz, 512 MB
Graphics: ATI Mobility Radeon 7500, ATY,RageM7, AGP, 32 MB Memory Module: SODIMM0/J16TOP, 256 MB, SDRAM, PC133U-333 Memory Module: SODIMM1/J16BOTTOM, 256 MB, SDRAM, PC133U-333 AirPort: AirPort, 9.52
Modem: MicroDash, Euro, V.92, 1.0F, APPLE VERSION 2.6.6 Network Service: Built-in Ethernet, Ethernet, en0
PCI Card: TXN,PCI1410-02, cardbus, PC Card
Parallel ATA Device: IBM-IC25N040ATCS04-0, 37.26 GB
Parallel ATA Device: MATSHITACD-RW CW-8121

Message #3 - Posted 2007/06/22 - zit

On Jun 21, 3:32 pm, navti wrote:

I have a Powerbook G4 DVI.

When I boot the system the screen is black, The only way I can get the monitor to come on is to close the lid and put the computer to sleep. waking it from sleep activates the monitor.

sometimes i have to repeat the process of putting the computer to sleep and waking it several times before the monitor comes on.

is this a MOBO issue ? (i read someone mention an inverter card ) .

I occasionally get a black screen on a TiBook 800, but under different circumstances.
The latch sometimes doesn't catch, so when I close the lid, it pops open before the machine has finished going to sleep and gets in this unfortunate state.
I think I once or twice cured this by reclosing the lid and reawakening, but forced power down is usually needed. PITA.

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