Christopher Warner Studies and thoughts, usually in coherent fashion.

4Mar/090

External Screen Blanking – Apple Driver/Hardware Issue

There seems to be an issue with an Apple driver in regards to external lcd's via their line of new laptops. Where the screen blanks in and out randomly for apparently no reason. I've done zero diagnosis because I get so tired of these type of bugs that I just don't even feel like it. I suspect it's an incorrect mode or HZ being reported. I'm not sure why it's intermittent however. Can someone at Apple please, please, please fix this? I don't have time to diagnose it for free but if we can just confirm the issue that would be good enough for me.

This is specific to the new Apple laptop I just purchased for work. The problem is that this is annoying and makes it difficult to get any work done. Luckily, I haven't been on any binges or doing anything major so it's tolerable but otherwise it would be up there with the reverse polarity bug for this display. Which sad to say still is a problem with OpenSolaris. That said, the information is below and the lcd is connected via external mini-display <-> vga dongle. I'm not sure how other people are dealing with it really; maybe using it as a time to get up and stretch or something. I do have to say though, all that aside, this is an excellent laptop for my work needs at home my 8-core is a bit more suited (large photos, videos, etc) but for programming alone or looking at visuals? You can't go wrong with this 13.3 macbook unibody. I'm not sure how it runs X Linux distribution and it's unlikely i'll even try. Been Linux free on the desktop for about 5-6 months now; not going back anytime soon.

Chipset Model: NVIDIA GeForce 9400M

Type: Display

NVIDIA GeForce 9400M:

Chipset Model: NVIDIA GeForce 9400M

Type: Display

Bus: PCI

VRAM (Total): 256 MB

Vendor: NVIDIA (0x10de)

Device ID: 0x0863

Revision ID: 0x00b1

ROM Revision: 3343

Displays:

Color LCD:

Resolution: 1280 x 800

Depth: 32-bit Color

Core Image: Hardware Accelerated

Mirror: Off

Online: Yes

Quartz Extreme: Supported

Built-In: Yes

DELL 2407WFP:

Resolution: 1920 x 1200 @ 60 Hz

Depth: 32-bit Color

Core Image: Hardware Accelerated

Main Display: Yes

Mirror: Off

Online: Yes

Quartz Extreme: Supported

Rotation: Supported

Connection Type: Analog VGA or Analog over DVI-I

About Christopher Warner

Christopher Warner is part genius, part idiot. This makes him well balanced. He's worked on numerous opensource projects with great people and has generally led an eventful and fulfilling life. He hopes to retire an old man in a rocking chair should he be so fortunate.
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