Tablet quicker with black wallpaper? - Asus Transformer TF700

So i have just rooted my tablet and with a few quirks it works awesome. sometimes the wallpaper will black out and come back but thats not my issue. my issue is that the tablet is so much faster, on the homescreen anyway. the apps open and transfer so quickly i might just keep it like that. anyone else get this weird, uh thing?

curiousmileo said:
So i have just rooted my tablet and with a few quirks it works awesome. sometimes the wallpaper will black out and come back but thats not my issue. my issue is that the tablet is so much faster, on the homescreen anyway. the apps open and transfer so quickly i might just keep it like that. anyone else get this weird, uh thing?
Click to expand...
Click to collapse
Well i don't know about a black wallpaper but the tablet is definitely smooth with all the system wallpapers.

Obviously the more pixels it has to render the slower it is. Colours are more intensive than a lack of colour (black). And a live wallpaper is the most cpu-intensive.

yea that makes sense but to have the difference be that substantial is pretty ridiculous. having a live wallpaper and being a little jerky here and there is fine but the difference from stock wallpaper to no wallpaper and high res ones is insane

No, it's not insane. You appear to forget we're talking about 1920 by 1200 pixels. That's 2304000 pixels. If they're black, nothing has to be rendered, the value is simply 0.
Any photoshopper can tell you more colour means more resources used, and the bigger the image the more it lags.

No, it's not insane. You appear to forget we're talking about 1920 by 1200 pixels. That's 2304000 pixels. If they're black, nothing has to be rendered, the value is simply 0.
Click to expand...
Click to collapse
The black background still has to be rendered, otherwise you would see the old content that was there before. And obviously, any solid color uses the same amount of resources.

I see what you're saying and it makes sense but shouldn't a device of this stature not be so affected from this? My evo when both on blank wallpaper and a high res one there is no difference in how fast the tablet works and especially how fast apps open. In the tablet though, its very night and day.

curiousmileo said:
I see what you're saying and it makes sense but shouldn't a device of this stature not be so affected from this?
Click to expand...
Click to collapse
I work on a uni computer especially dedicated to heavy rendering and photoshopping. It runs two GTX 680 2GB in sli, an Intel Core i7-990X Extreme Edition overclocked at 4.2ghz and 32GB ram. (And they won't let me game on it... ) If I try to scroll on a 200% zoom 5000x5000px canvas all black, it's gliding on ice. If I do the same on one with more than 8 colours, it lags more and more as more colours are added. This is basic physics.
_that said:
The black background still has to be rendered, otherwise you would see the old content that was there before. And obviously, any solid color uses the same amount of resources.
Click to expand...
Click to collapse
Yes that's true. The colour itself doesn't really matter, just the amount of different colours.

ok well why is my phone not affected by this?

curiousmileo said:
ok well why is my phone not affected by this?
Click to expand...
Click to collapse
Lower screen resolution.

Related

lcd density changer

I ave mine at 130 and love it
What exactly does this do? Does it make the viewing angles better at all?
Its like changing the screen resolution on a computer.
Does it affect battery life at all? Any other drawbacks?
A better question is: "how did you accomplish this?"
App or editing of some config file?
nunjabusiness said:
A better question is: "how did you accomplish this?"
App or editing of some config file?
Click to expand...
Click to collapse
You can edit /system/build.prop on gingerbread, I bet its the same for Froyo, but I am not positive. Or you can use an app. I use LCD Density Changer to change it, but you need to be rooted. Personally I run 130 too and I love it.
clankfu said:
Does it affect battery life at all? Any other drawbacks?
Click to expand...
Click to collapse
It could, theoretically, cause apps to take more GPU or CPU to render, which could change the battery life, but I have not had that happen to any noticeable extent. It also might slow down the rom a bit because of it theoretically needing more GPU or CPU, but again I have not noticed this. Some apps will not display right at lower density values, for example pandora will not center or scale the images correctly and it will look a bit odd because of that.
clankfu said:
What exactly does this do? Does it make the viewing angles better at all?
Click to expand...
Click to collapse
It will not make the viewing angles any better.
the3dman said:
Its like changing the screen resolution on a computer.
Click to expand...
Click to collapse
Yes it basically makes it look like its running at a higher resolution because it changes the PPI, but since the actual monitor is at the same resolution the pixles will not become smaller. It will just shrink everything it displays, which will sometimes make small images and text become a bit rough looking around the edges if you go with a very low setting. Some apps will cause more of a problem than others.
thanks for that long description. I've noticed a bit of unresponsiveness...but i've only had my G-Tab for a couple days so I don't know if its the ROM, the GT, or LCD changer.
Have you been any change in screen response?
sudermatt said:
Have you been any change in screen response?
Click to expand...
Click to collapse
I have not noticed any change on my phone, but then again I also run Evervolv (2.3 rom) and it might depend on what version of android, what kernel, what CPU scheduler, etc. As far as the tablet, since I have been working on a rom for it (flashing it several times a day) It's really hard to say, sorry I can't be of more help.

Want a clean stock pure black background for your evo 4g?

I just created it in a few mins in adobe photoshop. just created a plain image 800 x 480 and set the background to RGB #000000. for performance purposes.
evo4gfan said:
for performance purposes.
Click to expand...
Click to collapse
Someone correct me if I'm wrong, but the only time this will increase your performance, and I'm assuming your referring to your battery lasting longer, is with an amoled display. Evo does not have that so it will not benifit. Amoled backlights will actually use less battery due to the pixels actually being "turned off" when displaying black, since they don't have a single "always on" backlight.
Otherwise, thanks! I downloaded it, you never find these anywhere and I'm always too lazy to make one. Looks good for minimalist homescreens with all white text Widgets.
Here is a quicker way that doesn't take minutes and even the lazy can do it
Open Paint
Click Resize and type 800 x 480
Default is already black or pick another color
Click the paint can
Click the white space which is now black
CTRL + S to save it
That takes about 10 seconds.
Eh, still to much time involved. Downloading op's was easier!
Yeah i was disappointed to see nothing on google for just a plain black background. It just looks cleaner imo. And about the power savings im not too sure if it would be beneficial but I see where your going.
Nvmd I think i am wrong. Evo uses a TFT LCD screen. Only a black background on an AMOLED, OLED or CRT would be beneficial.
Couldnt you just cover up the camera lens completely and take a pic then use that as a background?
animal7296 said:
Couldnt you just cover up the camera lens completely and take a pic then use that as a background?
Click to expand...
Click to collapse
Thats what I did and I've seen no real increase in battery life. I just know I haven't used a live wallpaper in 2 months. Only to show them off, lol.

Does the screen resolution seem worse after the update?

I have noticed today after the update that the fonts in my browser appear much more pixelated than before the update. Fonts that were a nice black before seem to be grayish now. Clean edges look fuzzy. I know it's different. I has been bugging me all day.
Has anyone else noticed this?
Thats funny, because i was just thinking the complete opposite after the update. Maybe im just finally getting used to the resolution after owning two infinities.
mike619 said:
Thats funny, because i was just thinking the complete opposite after the update. Maybe im just finally getting used to the resolution after owning two infinities.
Click to expand...
Click to collapse
Or maybe one of us is dangerously insane?
Sent from my awesome Note 10.1
The update gave me retina 2048x1536 resolution but games are jerky and slow now due to GPU not being able to keep up with the increase of pixels. I'm going to ask Madfinger/Dead Trigger, Gameloft/Modern Combat 3, etc. to scale down to 1024x768 resolution.
mi7chy said:
The update gave me retina 2048x1536 resolution but games are jerky and slow now due to GPU not being able to keep up with the increase of pixels. I'm going to ask Madfinger/Dead Trigger, Gameloft/Modern Combat 3, etc. to scale down to 1024x768 resolution.
Click to expand...
Click to collapse
Yes I have heard of this happening. I read that submerging your tablet in water solves this problem.
Sent from my awesome Note 10.1
Display and fonts still look great after update. Try going into settings then display options. I have my display mode set to dynamic. Seems to pump out the best looking display. You have dynamic, standard, and movie display modes. I wish the manual detailed more what each of those does. You can still see the changes on the pic in THST option.

1080p as standard !!!!!

https://youtu.be/nP0I6Mb880E
Sent from my Nexus 6P using XDA-Developers Legacy app
Yup, this was pretty obviously stated and samsung did tell people. You can turn the resolution up if you require also.
1920/1080 is 1080p....so 1080P+
:laugh:
its a little more than 1080p. Also I speak from experience that you can not tell a difference unless you are looking for it. It is the same screen resolution on the S7's with nougat.
Yep it is. Lets not blow this out of proportion people if you want QHD+ its in the settings under display.
Sent from my SAMSUNG-SM-G935A using Tapatalk
lordandroid said:
Yep it is. Lets not blow this out of proportion people if you want QHD+ its in the settings under display.
Sent from my SAMSUNG-SM-G935A using Tapatalk
Click to expand...
Click to collapse
that also. lol. its not that bad it being 1080p+ though. It looks almost the same and to most you wont be able to tell.
Agreed ?
Sent from my SAMSUNG-SM-G935A using Tapatalk
I couldnt tell on my oneplus 3T, the screen was great.
QHD on a phone is overkill. It's a nice-to-have if you're trying to watch a movie, but other than that it's purely excessive. If someone showed you a 1080p and a QHD display on the S8 or even the s8 plus, I can all but guarantee you wouldn't be able to tell the difference. I sure can't with my S7E.
The problem is not that 1080p looks bad. The problem is that this display has a set number of width and height pixels which is defined as 2960 x 1440. So if you want to display a picture which is 2220 x 1080 in a display which size isn't a multiple of the picture you have to interpolate. You somehow need to have just 1080 pixels in a row where there are supposed to be 1440. Why don't they go with 720p instead? Well I guess it would also look shi**y :/
Just my thoughts, I have never seen a S7 or S8 display.
EDIT: I just think about this from a delevoper perspecive. The developer thinks: Let's make a black 2px line there -> it's a 2px line.
Because you cant fit a multiple of 1080 in 1440 the interpolation would make a 2,66px line. As you know you cant color 0.66 parts of a pixel black. So most likely the whole pixel will be black which results in a 3px black line where there should be a 2,66px line. As this happens with every pixel of the display the image won't just get inaccurate but also the GPU has to do some very unnecessary scaling work.
Termynat0r said:
The problem is not that 1080p looks bad. The problem is that this display has a set number of width and height pixels which is defined as 2960 x 1440. So if you want to display a picture which is 2220 x 1080 in a display which size isn't a multiple of the picture you have to interpolate. You somehow need to have just 1080 pixels in a row where there are supposed to be 1440. Why don't they go with 720p instead? Well I guess it would also look shi**y :/
Just my thoughts, I have never seen a S7 or S8 display.
Click to expand...
Click to collapse
It's the same as changing the resolution of a computer or monitor display. The interpolation isn't the issue, every manufacture has that down pat. 720p would make a noticeable difference, even in basic browsing and function. 1080p is enough that on a screen the size of the S8 or S8+ you wouldn't be able to see the individual (or interpolated) pixels.
marinebio94 said:
It's the same as changing the resolution of a computer or monitor display. The interpolation isn't the issue, every manufacture has that down pat. 720p would make a noticeable difference, even in basic browsing and function. 1080p is enough that on a screen the size of the S8 or S8+ you wouldn't be able to see the individual (or interpolated) pixels.
Click to expand...
Click to collapse
I didn't say that this is not the same. But when I buy a 1080p monitor, I use it in 1080p because thats what it is intended for. You won't see pixels on a 500+ ppi device. But the image will be totally unaccurate and that's not what I generally like to look at. I just tried this in photoshop and the effect is even worse than I thought and demonstrated by that example picture in my last post. Here's what it'll really look like. You want to look at this? Of course it will be very small pixels but do you really don't mind?! I know I do.
Termynat0r said:
I didn't say that this is not the same. But when I buy a 1080p monitor, I use it in 1080p because thats what it is intended for. You won't see pixels on a 500+ ppi device. But the image will be totally unaccurate and that's not what I generally like to look at. I just tried this in photoshop and the effect is even worse than I thought and demonstrated by that example picture in my last post. Here's what it'll really look like. You want to look at this? Of course it will be very small pixels but do you really don't mind?! I know I do.
Click to expand...
Click to collapse
That's not at all what it will really look like. Doing something in photoshop is not even close to how it will look in real life. Please look at the phone before you assume what it will look like. I just switched my phone from 1080p to QHD and back again, and I literally cannot tell the difference, even with my face pressed inches away from the phone.
marinebio94 said:
That's not at all what it will really look like. Doing something in photoshop is not even close to how it will look in real life. Please look at the phone before you assume what it will look like. I just switched my phone from 1080p to QHD and back again, and I literally cannot tell the difference, even with my face pressed inches away from the phone.
Click to expand...
Click to collapse
You can't negotiate with the pixel science
Most likely the pixels are just to small to see a difference but I will take a look at the phone when I get it to judge wether switching to 1440p or not
Termynat0r said:
You can't negotiate with the pixel science
Most likely the pixels are just to small to see a difference but I will take a look at the phone when I get it to judge wether switching to 1440p or not
Click to expand...
Click to collapse
But don't forget these OLED panels use a diamond pentile subpixel arragement, so the interpolation isn't quite the same as a traditional RGB LCD monitor.
It's REALLY REALLY difficult to tell the difference between QHD and 1080p on the S7. At more than about a foot, it's nearly impossible to tell. I know what you're saying, I hate running monitors at non-native resolutions.
If it bugs you that much, just change it.
If lower resolution gets me another 1hr SOT per day, I'll drop all the way to the bottom. Can't tell the diff.
I just changed to 1080 p on my S7E (was at the highest rez setting). Really can't see a difference. Icons and keyboard are a bit larger. Texts are a bit bigger. But as far as sharpness, look of the display, not an issue. Just going to test and see if this makes a difference much on SOT or not. I can always change back to the highest rez setting if I want - takes about 30 seconds to do.
teegunn said:
I just changed to 1080 p on my S7E (was at the highest rez setting). Really can't see a difference. Icons and keyboard are a bit larger. Texts are a bit bigger. But as far as sharpness, look of the display, not an issue. Just going to test and see if this makes a difference much on SOT or not. I can always change back to the highest rez setting if I want - takes about 30 seconds to do.
Click to expand...
Click to collapse
This setting should not affect the size of the screen elements (icons, text) at all.
se1000 said:
This setting should not affect the size of the screen elements (icons, text) at all.
Click to expand...
Click to collapse
The initial change of setting could change aspect ratios, but a quick restart should fix it.
se1000 said:
This setting should not affect the size of the screen elements (icons, text) at all.
Click to expand...
Click to collapse
I use Nova launcher, Swype and Handcent texting app. It changed the size of icons, the size of font, the size of the keyboard and the size of the texts (the bubbles and text font). It did increase the size on all of those. Also increased the size of the quick settings, etc. It's not a big deal, but it did increase the size of things a bit. Has caused no problems so far otherwise.

Problem: Screen Horizontal Lines When Dim in 120hz and low light

Hi,
My Note 20 ultra has some Display problems.
When my phone is on a lower brightness and Adaptive(120Hz) refresh rate setting on a grey background, I can see all sorts of funky horizontal lines across it.
(except gallery - i think the refresh rate reduce to 60hz in gallery automatically so in gallery you can't see the problem).
I see them big time on settings screens or Apps where there is a gradient of gray.
see the attached Picture. Two pics with 120Hz(Adaptive) Display Refresh Rate and others with 60hz!
Note: the problem seems to be more than real in these pictures because of camera, with eyes you can't see such this bad!
Any one here with this problem?
Is this something wrong with the phone? Or is that normal?
60
saidgta said:
Is this something wrong with the phone? Or is that normal?
Click to expand...
Click to collapse
normal for amoled screen
saidgta said:
Is this something wrong with the phone? Or is that normal?
Click to expand...
Click to collapse
You have a defective display get it replaced ,& no this isn't normal with oled screens
You can see the lines with your eyes or just with the cam?
Normal for a cam image... try decreasing shutter speed, a lot.
blackhawk said:
You can see the lines with your eyes or just with the cam?
Normal for a cam image... try decreasing shutter speed, a lot.
Click to expand...
Click to collapse
I can see with eyes but very rare, just when the screen is on 120 Hz and lowest brightness. On 60Hz everything's ok!
saidgta said:
I can see with eyes but very rare, just when the screen is on 120 Hz and lowest brightness. On 60Hz everything's ok!
Click to expand...
Click to collapse
Is that in a completely dark room?
If you're not using a incandescent light source for room lighting that may cause it.
Otherwise regardless of screen brightness or display frequency it should be not be showing anything except what's being displayed.
At that price it better be spot on.
Yes, that's in a completely dark room.
The horizontal lines is static, not moving. And you can see just in Gray Backgrounds with lowest brightness and 120hz.
screen lines
Hi. I just got my Note 20 Ultra and I have the same problem. I see streaks in my photos. If I switch between 60 and 120Hz, sometimes the lines disappear, but not always.
saidgta said:
Yes, that's in a completely dark room.
The horizontal lines is static, not moving. And you can see just in Gray Backgrounds with lowest brightness and 120hz.
Click to expand...
Click to collapse
Not good. Was thinking maybe background LED lighting might be "strobing" it.
Probably a firmware issue but could hardware is my guess.
Maybe software... try clearing the system cache on boot menu, a hard reboot and clearing graphic driver data even if it reads zero. If you have PD MDM use that to clear instead of in Settings.
Mine does the same. I think they all do it some people just don't notice it.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
Click to expand...
Click to collapse
Yes, I know someone that replaced the phone, but new phone has the issue too.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
Click to expand...
Click to collapse
Do you normally use that low a level at night?
I have excellent center vision; my 10+ goes dimmer than I will ever use. No flicker or color anomalies though.
It may be the physical hardware limits of the device or they may eventually patch a firmware flaw.
They also may have inadvertently set the lower limit of the brightness too low...
If it doesn't effect night usage I might ignore it.
Samsung can be notoriously slow at fixing firmware/software glitches in their products.
Amazingly even after almost 2 years they are still patching both firmware and software on the original Buds. They now perform much better then a year ago. Crazy.
blackhawk said:
Do you normally use that low a level at night?
I have excellent center vision; my 10+ goes dimmer than I will ever use. No flicker or color anomalies though.
It may be the physical hardware limits of the device or they may eventually patch a firmware flaw.
They also may have inadvertently set the lower limit of the brightness too low...
If it doesn't effect night usage I might ignore it.
Samsung can be notoriously slow at fixing firmware/software glitches in their products.
Amazingly even after almost 2 years they are still patching both firmware and software on the original Buds. They now perform much better then a year ago. Crazy.
Click to expand...
Click to collapse
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
Click to expand...
Click to collapse
coilbio said:
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
Click to expand...
Click to collapse
That's seems annoying. Guess using a lower frequency at night be the easiest solution. Sammy throws out a lot of betaware that needs more work...
On the 10+ Pie the display settings are goofy for screen mode. If you set it to "vivid" it's way oversaturated. Natural is the best setting but you have little ability to dail it in much more than that.
I'm curious about these controls on the 20U and Q.
Any improvement?
blackhawk said:
That's seems annoying. Guess using a lower frequency at night be the easiest solution. Sammy throws out a lot of betaware that needs more work...
On the 10+ Pie the display settings are goofy for screen mode. If you set it to "vivid" it's way oversaturated. Natural is the best setting but you have little ability to dail it in much more than that.
I'm curious about these controls on the 20U and Q.
Any improvement?
Click to expand...
Click to collapse
Honestly don't notice a difference switching between the two in n20u, on note 10+ yes big difference.
So I tried the green slider mod setting where you dial it all the way down under advanced display setting.
Its not much of a difference, it does reduce it a little. The screen becomes purple dominant obviously but the green fringes still show.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
Click to expand...
Click to collapse
coilbio said:
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
Click to expand...
Click to collapse
coilbio said:
Honestly don't notice a difference switching between the two in n20u, on note 10+ yes big difference.
So I tried the green slider mod setting where you dial it all the way down under advanced display setting.
Its not much of a difference, it does reduce it a little. The screen becomes purple dominant obviously but the green fringes still show.
Click to expand...
Click to collapse
On the 10+ the color sliders are weak too.
A 3rd party overlay app works but is a pain.
Overlay apps won't work with Q though I believe.
Rather sloppy of Goggle and Samsung... this is an ongoing issue with Androids; no color calibration
Fortunately the 10+'s aren't too bad but it the color blind coders need to get up to speed...
Androids need color calibration.
OLEDS are horrible sceens, but similarly to screen-to-body ratio we have brightness race now, a useless but review-happy attribute which does help your eyes only in very rare situations. Otherwise it makes your eyes tired with pulsing. For use in dark these screens are bad. You will also got ugly backbleeding as a bonus. Horror movies are unwatchable.
I have this with each phone nowadays, and there's no escape from it. I can see the lines on Note20U too, of course. It even blinks when you're tired. The backbleeding is rather uniform tho and not so intensive.
Funny as I use mobile 90% in dark, i prefer dark mode, and i like dark movies Killer trio.
doggydog2 said:
OLEDS are horrible sceens, but similarly to screen-to-body ratio we have brightness race now, a useless but review-happy attribute which does help your eyes only in very rare situations. Otherwise it makes your eyes tired with pulsing. For use in dark these screens are bad. You will also got ugly backbleeding as a bonus. Horror movies are unwatchable.
I have this with each phone nowadays, and there's no escape from it. I can see the lines on Note20U too, of course. It even blinks when you're tired. The backbleeding is rather uniform tho and not so intensive.
Funny as I use mobile 90% in dark, i prefer dark mode, and i like dark movies Killer trio.
Click to expand...
Click to collapse
It's not the OLEDs that are the issue as the display on my 10+ is the best display I ever used.
It's the firmware/drivers and perhaps the >60 hz hardware. It's very disconcerting that it's not sorted out yet.
Well that's Samsung. It may be fixed. Samsung just pushed out yet another Buds+ firmware update today. Wow. They keep trying, I'll give them that... the best the Buds+ ever sounded.
So there's hope. The bad news is it will most likely need to be a firmware update if it is fixable.
Flashing the Buds is a lot easier (and less risky) than patching the bloody phone firmware.
Based on issues like this and the abomination that Q and above are, I may simply buy another backup 10+ 512gb phone running on Pie and call it good for the next 3 years.
Both Samsung and Goggle/Android have been practicing drop the ball like drooling kindergarten ftards lately
saidgta said:
Hi,
My Note 20 ultra has some Display problems.
When my phone is on a lower brightness and Adaptive(120Hz) refresh rate setting on a grey background, I can see all sorts of funky horizontal lines across it.
(except gallery - i think the refresh rate reduce to 60hz in gallery automatically so in gallery you can't see the problem).
I see them big time on settings screens or Apps where there is a gradient of gray.
see the attached Picture. Two pics with 120Hz(Adaptive) Display Refresh Rate and others with 60hz!
Note: the problem seems to be more than real in these pictures because of camera, with eyes you can't see such this bad!
Any one here with this problem?
Click to expand...
Click to collapse
I have same issue..! Have you sorted out this issue!?

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