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Intel HD Graphics (Bay Trail) Frame Latency issue on a deadline

post #1 of 4
Thread Starter 
So, I bought an Acer 11" Celeron N3050 laptop nearly two weeks back. Why is that time important? Because I have exactly two weeks to return a product for any reason without it breaking. Now, I bought this laptop somewhat as a typewriter and netbook, but mostly for the singular purpose of speedrunning Freedom Planet, an indie platformer I absolutely love. At first, I was almost going to return it on day two, because my keymapping of WASD, Space K and L had overlap issues due to the bizarre circuitry Acer put inside this cheapo, but rebinding to WASD, Space 0 and - solved that problem. Then, I noticed increased latency on the keyboard vs my older MacBook. A quite significant amount actually, about a couple frames. This wouldn't be a problem if it weren't for Freedom Planet being an incredibly high-speed game, requiring often nearly frame-perfect inputs. So I sucked it up and ordered two Buffalo USB SNES controllers, seeing as while I owned an Xbox 360 controller, using a joystick in a 2D retro platformer does not work well at all. I then grabbed my controller at my desktop and started practicing about a week ago to get my muscle memory for my somewhat awkward controller bindings up to par. I didn't really run on my laptop at all, because I didn't feel like dragging my controller from the nest of cables behind my desk, hence me ordering two Buffalos instead of one. However, I took my controller with me for the weekend to use with my laptop, and noticed that the latency was still there, and much worse than on my desktop. It was not the keyboard, as my controller had literally PRECISELY the same amount of latency as my keyboard, but my trackpad wasn't affected, because it goes straight through Windows, and not through a frame buffer.

So, now comes my desperate request: Is there any way whatsoever to access the frame buffer on Intel HD Graphics, more specifically the Bay Trail series? Because this is the only thing I could logically accuse of causing this massive increase in latency. Of course it's probably not that noticeable to the average user, but my desktop runs at 144hz, with flip_queue being set to 1 on RadeonPro for everything, and a super low latency gaming mouse and a mechanical keyboard as well. I feel an absolutely massive difference, and I would consider it to be nearly unplayable on this laptop right now, so if there is any way at all to see or change the frame buffer on HD Graphics, I need to know quickly, as within a couple days, I would have to return this laptop to where it came and spend twice as much on a machine with a dedicated card, purely to be able to access the damned frame buffer.

Does anyone know of any way whatsoever?
post #2 of 4
N3050 is Braswell/Cherry Trail derivative. They are really only good at two things: Low power consumption and video playback. I have the N3150 and I bought it for the low power consumption. I was quite disappointed how much worse it performs compared to the J1900 Bay Trail-D. Single core performance is abysmal, even with the BIOS setting adjusted to run the CPU at max speed. Simple web browsing has hiccups.

If you aren't happy with your purchase now, you will probably be kicking yourself if you don't bring it back. There are a few select tasks these processors can do that will make people happy, but they are pretty bad at everything else. I and several other people have noticed input lag. One review I read recently blamed it on the slow hard drive. Dunno how someone who reviews computers can type that out and not realize how unintelligent that sounds. It isn't the hard drive. It's possible you can find a way to make it work but that would be a gamble.
post #3 of 4
Thread Starter 
I am not looking for performance. All I want is to be able to run a 2D game that runs on a potato without three frames of input latency added through Intel drivers.
post #4 of 4
Thread Starter 
Alright, some time later, laptop as been returned. After trying everything, and having a go with my brother's MacBook Air on Windows, I found out the latency is infact an inherent issue of Intel's drivers, an issue that can not be fixed. After doing more comparison tests with my desktop, monitor set to 60hz and even having my flip_queue_size back to Auto from 1, the latency was still much much worse on the Acer. Eventually, I concluded I'd have to bite the bullet and get something with a dedicated graphics card. Unfortunately for me, the 400-600 Euro laptop segment in the Netherlands has absolutely collapsed. Where there once were multiple i5 + 840M + 8GB + 1080p offerings with huge batteries, I had trouble finding anything with any dedicated card that lasts for more than for hours while browsing. Eventually settled on an Asus R556 with a 5200U, 4GB of RAM, a 768p display and a 920M. It's been pretty good so far and all of the latency issues are gone. And as a bonus, I can run GTA V on it. The only real downside is the trackpad having a horrid amount of latency, but I can live with that.
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