DL Powerbook horizontal lines become cross-hatch pattern

I'm experiencing the same horizontal line issue as many others have reported.
I decided to try changing the number of colors my diplay uses from millions to thousands. After doing this, I notice a cross-hatch or regular little squares pattern instead of horizontal lines. It is epecially obvious on light grays such as the gray behind "Apple Discussions" at the top of this web page.
When I use the digital color meter app with millions of colors, the gray I'm talking about is one uniform 88.6% in RGB, but when I change to thousands, a regular pattern of 90.6% and 87.1% RGB pops out. And, when I move the window around the desktop, the pattern of dark and light grays changes, but always from one obviously regular pattern to another.
When I do the same changes and measurements on my old 17" cinema display hooked up to a powermac G4, the RGB numbers are approximately the same, but there is no (easily recognizable) regular pattern. So instead of looking like a cross-hatch or a bunch of little squares or whatever, it just looks gray. With thousands of colors, my new powerbook chooses to draw a regular pattern in a solid color, while my old powermac doesn't and the pattern it chooses depends on the window's position on the screen.
I don't know if it means anything, but it's clearly a difference in color display between a cinema display with no horizontal lines and a new powerbook with horizontal lines.
But, this doesn't work in millions of colors. The DCM tells me there are no color differences in the light gray, even though my eye can clearly see horizontal lines.
Any thoughts?

Hi Charles,
You're quite right in this description.
I noticed the sort of textured look on the screen even before I noticed the lines. It's kind of like the texture of a polo tshirt only very subtle and finely detailed.
Anyway, how did your attempt to return it at the Apple Store on Miracle Mile go?

Similar Messages

Cross Hatch Patterns

I recently began running grayscale conversions in ACR and found a disturbing condition. In order to dramatize an image, I decreased the value of the Blue slider significantly, and the result, in neutral areas was a crosshatch pattern. Now, in Photoshop using B&W conversion and moving the Blue slider the same amount, the image becomes noisy, but random, much more to be preferred.
Here is the result in ACR, (at 200% to see clearly):
CS5, Win 7 64, all upgrades and patched installed.

What comes to my mind is that your camera has a Bayer pattern of photosites filtered with blue that are in a pattern that could ultimately lead to what you're seeing.
http://en.wikipedia.org/wiki/Bayer_filter
Perhaps the combination of settings you have chosen, coupled with the ordering of Camera Raw operations under the covers, yields a pattern when you do just what you did because only the blue measurements are participating in the conversion.
By contrast, allowing the algorithms to use all the colors originally measured to participate in the generation of luminance information, then processing the resultant image in Photoshop yields a smoother final result.
That's just a guess.
What's interesting is that I can't reproduce what you're seeing. When I zoom in on a neutral gray object (the side of my RV in shadow, as an example), then radically adjust the Blue slider, I get just more or less a random pattern.
Can you be more specific about exactly what we're looking at in your image, and what other parameters you're setting to achieve this?
-Noel

Horizontal lines on iphone5

Hi!
I'm extremely exciting to receive my first iphone - iphone5. But it turned out there some issues on the display.
Right at the center of the screen, occasionally there are few horizontal lines flashing, and the funny thing is, screen under the flashing horizontal lines becomes blurred and almost unreadable. But as I said, it happens occasionally, it just becomes normal minutes ago, while the last few hours, those lines are just exicitingly flashing like I was hours ago.
I read through the forum, it seems this issue happened in the past generations, anybody sees the same?
Have a nice weekend
Han

I have this, not everytime - maybe half.
Matches this image from corresponding thread on Macrumors.
http://i.imgur.com/A8lDsl.jpg
http://forums.macrumors.com/showthread.php?t=1449811
I have called Apple to create an escalation. I have a hunch this is an issue with the App store rather than the phones. I am waiting to see before I go through all the hassle of replacing it, the phone is performing excellently otherwise. I have a mixture of numbers and letters in my password, seems to be triggered by flicking to numeric keyboard and then dissappears when flicking back to text keyboard.

PowerBook Will Not Wake from Sleep - Horizontal Lines on Display

I have a new PowerBook that I purchased last December. When my computer goes into sleep mode, it will not wake up unless I do a hard poweroff by holding in the power key for 5 seconds. When it tries to wake from sleep all I see is my mouse cursor on a black screen or the spinning beach ball. I'm also having problems with graphic applications such as Photoshop or Adobe Illustrator where I'm using lines that are only 1 pixel in length. The lines disappear when I drag them across the screen as though I'm missing a whole row of pixels or half of the line is fainter. I also notice very fine horizontal lines throughout my display. My older PowerBook does not have these lines nor this wake from sleep problem.

Contact tech support, it will need to be sent in for repair, and as long as your hardware warranty is good or you have APP the repair will cost nothing. unfortunatly this is basically your only option, unless resetting NVRAM takes care of it. to do that turn off com. hold down option, apple(2 key's left of space bar)and o, f, then turn on while holding those down. when firmware opens up type in reset-nvram, press enter then type in reset-all(include the dash in both)
this will reboot com. if this does not take care of it a repair is needed.

Horizontal lines on new PowerBook display

Here is my experience with the new PowerBook display/horizontal lines issue. Please post any constructive advice you have that I can try - either to eliminate the problem or to pinpoint the cause more accurately.
I used to own a 15" Powerbook from about 12 months ago, a 1.33GHz model. The display on this was fine. Much better, in terms of brightness and clarity, than my other HP & Dell Windows laptops. When the PowerBook was stolen, one of the main reasons for immediately buying a new replacement PowerBook was the superior display quality.
At the start of November the replacement PowerBook arrived - a 15" hi-res 1.67GHz model. The faint grey horizontal lines covering the whole display were immediately visible. The display is substandard compared to both the previous PowerBook model and my Dell laptop.
Apple Care telephone helpline suggested an NVRAM reset and a PMU reset. Neither of these made any difference.
The PowerBook was then sent back for replacement and a week or so later the new replacement arrived. This also had exactly the same problems.
Apple Care helpline this time said that they could not find any problems with the PowerBook and I should first try the PowerBook connected to an external monitor and secondly take it to an Apple Dealer to show the problem.
I tried it on an external monitor, but unfortunately this is only an old Nokia 15" CRT monitor and though the lines appeared to not be there, the quality of the monitor makes the result inconclusive.
Next up, I will take the PowerBook to the Apple Store. At the same time I have copied "Aqua Blue.bmp" onto my Dell laptop. With the two laptops side by side showing the same image, the defect in the PowerBook display is clearly visible. I hope to be able to take both machines to the Apple Store later this week. I will let the forum know the results...
So, are there any other tips/advice from users as to other tests I can run or other methods to improve the issue?
Many thanks!
It seems obvious, but please don't contravene the Terms of Use for this forum. If you want to complain to Apple, please do it elsewhere - locked posts will get us nowhere

n2o2,
I don't know what let you think that you will eventually receive an AluBook without stripe : Apple Care let you think that ???????.
I have been reading the stripes topics each day since I ordered my new powerbook, late october. I did not see one single post proving that a "free line" 15" powerbook does exist.
The real evidence would come from someone describing the difference between a "non affected" new powerbook sitting besides an affected one, coming from the same PB generation and with exactely the same LCD profile and screen / Colorsync settings.
I did not see a single story like that among the hundred(s) of posts related to horizontal lines.
I have read one post stating that the screen is "crystal clear" and "sharp". The one I received today could be described like that, but it displays those lines, except from the 8 or 10 upper rows of pixels on the menu bar.
The pb15_problems.png file is a very interesting one to me, as it demonstrates that the lines could clearly be attenuated using a single filter without compromising the sharpness/Brightness of the image.
If I compare side by side my 3months old previous generation powerbook and the new one, I must say that (except for the stripes) there is not much difference in daylight in terms of brightness but a perceptible better brightness in the complete darkness.
Well, if someone could prove that some of the new powerbook do not display this "feature", this would certainly push me to return mine. But, seeing how it is difficult to get this organized, I may not want an exchange but a refund, or an upgrade for a 17".
Please tell us quick if you win this battle.
Luc
AluBook 1.5 Ghz, G5 DP 1.8Ghz , G4 400 Mac OS X (10.4.3) airport express, iPod 3 & video

How do I make a simple hatch pattern (for fill) of my own customization?

Hello all,
I must be over looking something here. I am trying to make a hatch pattern in Illustrator CS6 with the pattern tool so I can apply a clean, single lined hatch to various shapes (some small some big - but the hatch needs to remain at the same seamless scale). I understand that there is a Basic Graphics_Lines Pattern under the Swatches Palette, but I don't understand how to edit it with the Pattern Options dialogue box.
I must be missing something, becuase I wouldn't think making a single line at 45° repeat at the same spacing for a shape fill would be that difficult. I shouldn't have to make a line with the pan tool at a stroke of 1000 with a 0.1-3 dash and make a clipping mask should I?
Basically I don't know how to make a pattern's lines match up when I do the 5x5 or 3x3. I tried doing 1x1 and the result is that of the image with the red stroke...still not aligning. Do I need to get mathematical with the size of the line i'm drawing and its stroke to allow H and V Spacing to work?
I'm completely lost and would really appreciate if someone could help me understand this....It just seems so arbitrary. and all the examples/tutorials i've seen of this tool are of floral patterns where arbitrary is okay.
Thanks,

Create the pattern at either horizontal or vertical angle.
Rotate after applying to the object.

Horizontal line issue -- some new thoughts

Hello there.
Regarding the horizontal lines / waves issue, has anyone else noticed that the intensity of the problem varies with the position on screen? The problem is especially visible in the upper left corner of my screen, yet is almost non-existent in the lower right corner. From the upper-left to the lower-right corner, the problem degrades. This is true for both the "lines" issue and the "waves" appearing.
You can try yourself by setting your desktop background to "Tile" and using (part of) the Crankycat picture (you can download a cropped version at http://siteffects.be/maarten/powerbook.png).
On my machine, the waves problem is very visible in the light-blue "Sources" area of iTunes (i.e. left part of iTunes, so coincidentally in the "worst" part of the screen). When moving the iTunes window to the right, the problem eventually disappears.
On a sidenote, has anyone tried to use the Powerbook with Linux? I'm really wondering whether a completely different operating system would solve the problem. I've tried using Ubuntu live CD's (both stable version and new "Dapper" version), but they do not seem to work. In general, I have the impression that you need kernel 2.6.15, which is the only one supporting the latest Powerbook.

Hi Sebastian,
When using sRGB (not IEC61966-2.1), I do see what you observe, however it is not THAT apparent.
Except. If I increase the contrast of the screen one notch (CTRLOption+Apple.), the heavy lines/wavy lines is very obvious. But if you increase contrast two notches they go away completely. Interestingly, on my dispaly, if you chose Generic RGB, and increase the contrast one notch, the whole orange panel shows heavy banding.
You can reduce back the contrast with (CTRLoption+Apple,)
Yes, the bottom right is less of a problem than the top left. But I can just about perceive the horizontal banding.
The same cannot be said of the horizontal pixel lines in the lilac panel. These only disappear if I increase the contrast so much that the display looks terrible. (e.g. until the lilac become almost pure blue). And the problem is the same everywhere on the screen.

Why do I have white horizontal lines on my Macbook Pro Retina?

When I am using my 15" Macbook Pro, there are often white horizontal lines that run across the screen. It usually happens when I am watching a video, typing, scrolling or just sitting on the desktop. There are days where the screen is perfect and there are no problems; there are also days where it happens so frequently that some videos becomes unwatchable due to the distracting lines flickering and flashing on the screen. They don't stay all the time but I'd love to know what the problem actually is. Thank you for reading, and please help me out.

Hi there JohnRendleman,
I would recommend taking a look at the troubleshooting steps found in the article below.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
-Griff W.

Horizontal line with jsf tag

Hi,
i need following pattern:
text (horizontal line)
text (horizontal line)
and so on....
i use
<h:outputText value="Text"/><h:outputText value="___" style="vertical-align:super;"/>it works, but now i need the line thicker.
can i expand this code with some css?
or is there any other solution with jsf-tag?

Use the CSS border property. This has not much to do with JSF, but just with basic HTML/CSS knowledge.

Horizontal Line?

Hi folks, I am revamping my resumé and trying to figure out how to put a horizontal line across the page under some of my section headings.
For the life of me I can't figure out how to do that.
I can't figure it out in Word 2008 either...

If you aren't satisfied, you may
(1)
_Go to "Provide Pages Feedback" in the "Pages" menu_, describe what you wish.
Then, cross your fingers, and wait _at least_ for iWork'11
(2)
edit the Index.xml file embedded in your document file.
The descriptor of your entries is something like that:
<sf:paragraphstyle sf:parent-ident="paragraph-style-32" sfa:ID="SFWPParagraphStyle-68">
<sf:property-map>
<sf:tabs>
<sf:tabs>
<sf:tabstop sf:pos="463.30706787109375" sf:align="left" sf:leader="-"/>
</sf:tabs>
</sf:tabs>
</sf:property-map>
</sf:paragraphstyle>
You may edit : sf:leader="-"/>
replacing the - character by the one which you want.
Yvan KOENIG (VALLAURIS, France) mardi 11 mai 2010 11:39:46

Horizontal Line on Laptop screen

Horizontal line appear on my laptop screen
HP Pavilion dv6 1355 dx
Intel processor
Windows 7
How can I rid these lines

mgh1936 wrote:
thanks did both no luck. I understand the cable can become worn from openning and closing the screen?
That is a possibility but it's more likely that the problem is the LCD panel.

Horizontal lines

This is a new issue, which popped up randomly today, and I can't seem to find any posts that fit the description of what's going on, so here goes:
Earlier today, while working on homework, I looked up at my monitor from my textbook and there were suddenly horizontal lines crossing the entire width of my monitor. These lines are very, very thin, and as far as I can tell, they are spaced evenly apart and they are also symmetrical.
I disconnected it from my video card, tried another monitor, etc. It is the monitor, not my PC, as other monitors do not share the issue. I was wondering if there was a fix anyone knew of that doesn't involve sendng the monitor in, buying a new monitor, etc? I've barely had this monitor for a year.

Hello @Exclius,
I understand that you are having issues with horizontal lines on your HP 20wm LED Backlit monitor. I am providing you with an HP Support document: Display Quality Issues, which has a section titled 'Solid horizontal or vertical red, green, or blue line', which has been designed to address issues such as the one you are describing. I suggest that you review the document and take the steps set out within to find a resolution to your delimma.
I am also providing you with some steps you can try below:
Step 1. Unplug the power cord from the back of the monitor and the wall
Step 2. Hold the power button down for at least one minute
Step 3. Plug the power cord back into the monitor and then into the wall outlet (not a power bar or surge protector)
Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

PDF Problelm - horizontal Line and Chart

I have in some Repeating Frames horizontal Line. When I create a PDF-File then the Line have a very, very small gap inbetween. Does somebody have any idea how I can join two lines ? When I print the same report in RDF then line are together, no gap, no problem.
When I have a pie chart with expl. 16 categories then the PDF create and show only two colours. Where can I configure or protect that there are 16 different colors ? Also here, the RDF has no problem at all.

I have in some Repeating Frames horizontal Line. When I create a PDF-File then the Line have a very,
very small gap inbetween.
Does somebody have any idea how I can join two lines ? If you want to have a vertical line that stretches across instances of a repeating frame then you can use the: "Line Stretch with Frame" propert on the vertical line. To do this:
- create a new frame "M_StretchFrame" that surrounds your repeating frame
- make sure the vertical elasticity for the new frame is "variable"
- create a vertical line "B_StretchLine" and place it wherever you want (it doesn't need to be within the frame)
- bring up the property palette for "B_StretchLine"
- set the "Line Stretch with Frame" property to the new frame "M_StretchFrame"
When the report runs, the line will stretch the same amount as the frame and hence cross over all instances of the repeating frame.
If you want to stick with only the repeating frame, you can still set the "Line Stretch with Frame" property against the line to the repeating frame. You can then resize the line so that it extends beyond the end of the repeating frame.

How do I get rid of horizontal lines on mac osx 10.7?

I have several horizontal lines on the screen of my Laptop. It is a PowerBook ios 7.0.5. How do I eliminate the lines?

iOS is the operating system for iOS devices such as the iPad, iPhone, and iPod touch.
Mac + OS X. In your case, v10.7
It may be a hardware problem.
One way to eliminate hardware issues is to run the test > Using Apple Hardware Test
Otherwise take your Mac to an Apple Store or Apple certified repair provider.
Locations listed here.

Pictures taken with my 1D Mark IV show a blue horizontal line at the bottom from ISO 400 onwards.

Pictures taken with my 1D Mark IV show a blue horizontal line at the bottom from ISO 400 onwards. So far nobody has been able tot tell me the cause of this problem. The body is still quite new (15000 pics taken).

I agree that it looks like a column of photosites is not working. But... I'm curious as to why this would only happen at ISO 400 or above.
The sensor is covered with photosites -- they are monochrome. On top of the photosites is the "bayer mask". The mask is a checkboard pattern of red, green, and blue "lenses" which makes the photosite beneath only sensitive to that particular color. They are group in clusters of 4 photosites in a 2x2 matrix. Two of the four squares (in opposing corners) are green. One corner is red. One corner is blue. If you were to lose a column which happens to be along the red/green column (as opposed to the green/blue) then you'd lose red sensitive and half the green sensitivity in that column. The result would be that this column is flanked by two "working" columns which are full of green/blue photosites... hence the teal blue look.
I do not know if this will work for you, but oddly... you can actually sometimes "clear" stuck pixels (but usually this is an indvidiual stuck pixel... not a whole column of them) by putting the camera into manual sensor cleaning mode (and you may have to do this 2 or three times). While the normal point of the self-cleaning mode is to flip up the reflex mirror and open the shutter so that you can inspect and clean the sensor (really the front-most filter because you can't actually touch the real sensor), it also neutralizes the charge on the sensor (or so I've read). This charging and discharging of the sensor a few times can often get "stuck" pixels to start working again. BUT AGAIN... I've only ever seen this used on individual stuck pixels... never a whole row.
Tim Campbell
5D II, 5D III, 60Da

DL Powerbook horizontal lines become cross-hatch pattern

Similar Messages

Maybe you are looking for