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by portets
Tue Jul 31, 2012 3:38 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 615896

Re: Overclocking

@Dom -After looking at my benchmark, there wasn't much difference at all. With some tests I found that ssv-membench is actually cpu bottlenecked on the pi. arm_freq at 980 made the ram benchmarks improve dramatically up to sdram_freq=600. After that, I get no improvement. I haven't heard anyone else...
by portets
Tue Jul 31, 2012 1:53 am
Forum: General discussion
Topic: SD Card Benchmarks
Replies: 301
Views: 299306

Re: SD Card Benchmarks

http://elinux.org/RPi_Performance#SD_card has some sd card benchmarks people organized a while back. Since then, sd card performance and compatibility has improved.

I also don't know which way is better for measuring sd card performance.
by portets
Tue Jul 31, 2012 1:01 am
Forum: Beginners
Topic: Composite display tweaks
Replies: 15
Views: 8983

Re: Composite display tweaks

I tried to tweak the video settings to move the image but nothing happens I guess they only apply to the HDMI output. The overscan settings effect both composite and hdmi. Did you make sure to remove the "#" at the beginning of each overscan line? Also, positive numbers are used to correct the imag...
by portets
Mon Jul 30, 2012 3:55 am
Forum: General discussion
Topic: Card full when it shouldn't be help
Replies: 4
Views: 785

Re: Card full when it shouldn't be help

Did my reply to your duplicate of this post not work? Here it is if you didn't see it:
portets wrote:I had this issue too. Hopefully it gets fixed soon ;)

open a terminal and type:

Code: Select all

rm -rf ~/.local/share/Trash/files/*
by portets
Sun Jul 29, 2012 11:03 pm
Forum: Debian
Topic: Card full and it shouldn't be pls read
Replies: 2
Views: 802

Re: Card full and it shouldn't be pls read

I had this issue too. Hopefully it gets fixed soon ;)

open a terminal and type:

Code: Select all

rm -rf ~/.local/share/Trash/files/*
by portets
Sun Jul 29, 2012 10:58 pm
Forum: Troubleshooting
Topic: RCA composite video display
Replies: 15
Views: 51031

Re: RCA composite video display

It increases the viewing space for everything, except some fullscreen applications that make their own screen(like quake3 and other fullscreen 3d games). To compensate for the harder to read text, i messed with my theme so that everything is very dark grey and fonts are very light grey. I find this ...
by portets
Sun Jul 29, 2012 12:52 pm
Forum: Troubleshooting
Topic: RCA composite video display
Replies: 15
Views: 51031

Re: RCA composite video display

you can also change the framebuffer_width and framebuffer_height in config.txt. Making them bigger than your tv's resolution will make text smaller and blurrier, but gives you way more desktop space. Try something like: framebuffer_width=800 framebuffer_height=600 if text is too small: framebuffer_w...
by portets
Sun Jul 29, 2012 5:33 am
Forum: Python
Topic: Starting to write games in Python - use Pygame or Pi3D?
Replies: 4
Views: 2260

Re: Starting to write games in Python - use Pygame or Pi3D?

Simple games in pygame should run alright on the pi, assuming the coding is alright. Mine does. And pygame has a lot of examples. As with most python libraries, they have a similar feel. So i suggest pygame, and when you need more, it'd be pretty easy to move onto pi3d. edit: also remember that firm...
by portets
Sat Jul 28, 2012 4:40 am
Forum: General discussion
Topic: An nbench challenge
Replies: 32
Views: 12243

Re: An nbench challenge

My test results(without booting into X): TEST : Iterations/sec. : Old Index : New Index : : Pentium 90* : AMD K6/233* --------------------:------------------:-------------:------------ NUMERIC SORT : 312.96 : 5.14 : 1.69 STRING SORT : 44.147 : 14.06 : 2.18 BITFIELD : 9.8046e+07 : 15.23 : 3.18 FP EMU...
by portets
Sat Jul 28, 2012 3:15 am
Forum: General discussion
Topic: Raspotato Pi
Replies: 10
Views: 3763

Re: Raspotato Pi

I think it would take about 7000 potatoes.

Using copper and zinc will get you, i think, .68v x 7 potatoes = 4.76 volts.

Now we have the voltage but not the amperage. I think the average good potato battery puts out 0.5ma. x 1000 gets you 500ma, the minimum a pi should get. x 7 =7000 potatoes.
by portets
Sat Jul 28, 2012 2:48 am
Forum: Advanced users
Topic: How to tell if I'm overclocked?
Replies: 2
Views: 2356

Re: How to tell if I'm overclocked?

open a terminal and type:

Code: Select all

cat /proc/cpuinfo
under "bogomips" that number is roughly your clock speed.
by portets
Sat Jul 28, 2012 2:45 am
Forum: Graphics programming
Topic: SDL 2.0 on Pi?
Replies: 15
Views: 13840

Re: SDL 2.0 on Pi?

It's used in almost every major open source game project to provide an easy way for programmers to display 2d and 3d video, audio, input handling, loading of images/fonts. SDL 2.0 brings easy to use hardware accelerated rendering of 2d material, which was more complicated before. I've heard SDL 2.0 ...
by portets
Fri Jul 27, 2012 1:04 pm
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 615896

Re: Overclocking

Thanks for the link. I was just using quake3 to test if the memory was stable. Just compiled that program and got some results. stock: C copy backwards : 128.27 MB/s C copy : 168.85 MB/s C copy prefetched (32 bytes step) : 279.29 MB/s C copy prefetched (64 bytes step) : 248.10 MB/s C copy via tmp bu...
by portets
Fri Jul 27, 2012 11:18 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 615896

Re: Overclocking

I tried quake a little bit ago and found my actual stable overclock is 990. :cry: My (very accurate) test meter reports the pi is only receiving 4.76 volts, the 3v3 regulator is putting out 3.268v, and the 1v8 regulator is only putting out 1.784 :? . When i get a new adapter or wire up my own switch...
by portets
Fri Jul 27, 2012 3:33 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 615896

Re: Overclocking

Am I the first person to reach 1000 arm clock with no overvolt? Been running at 100% cpu for over 20 minutes. Compiling fceux, running top, file manager open, and midori has 10 tabs open. All while I'm writing this. And this is on a cheap 4.8 volt phone charger.

Have yet to take it higher :twisted:
by portets
Fri Jul 27, 2012 12:45 am
Forum: Troubleshooting
Topic: raspian rubbish bin problems
Replies: 5
Views: 11811

Re: raspian rubbish bin problems

Can this be fixed with an update? This can be a show-stopping bug for kids/new linux users.

My pi sd was overfilled so much that it wouldn't even boot! I didn't know that could happen.

I had to hit ctrl-alt-f2 and type:

Code: Select all

rm -rf ~/.local/share/Trash/files/*
by portets
Tue Jul 24, 2012 12:44 am
Forum: General discussion
Topic: Longevity of Pi
Replies: 23
Views: 3077

Re: Longevity of Pi

5.07 to 4.8 sounds like a lot of resistance. tp1/tp2 are before any regulators. The only thing between the tp's and the microusb port is a 1.1A polyfuse. That would be the green piece labeled F3 right under the microusb port. Could you test the resistance of the 1.1A polyfuse before plugging it in, ...
by portets
Mon Jul 23, 2012 12:52 pm
Forum: General discussion
Topic: Longevity of Pi
Replies: 23
Views: 3077

Re: Longevity of Pi

Has it been overclocked?

Try a different power supply? 24/7 phone charger running at almost max capacity could be a problem. It could show the correct voltage but be low in amperage, then drop further after a few minutes.
by portets
Mon Jul 23, 2012 12:23 pm
Forum: Off topic discussion
Topic: Win95 on real Raspi
Replies: 281
Views: 88252

Re: Win95 on real Raspi

Good job getting that to work. :)

Did you optimise qemu's makefile with:

Code: Select all

-O3 -mfloat-abi=hard -mfpu=vfp -mcpu=arm1176jzf-s -mtune=arm1176jzf-s -march=armv6zk
by portets
Mon Jul 23, 2012 12:18 pm
Forum: Advanced users
Topic: Overclocking success over 1GHz?
Replies: 39
Views: 20928

Re: Overclocking success over 1GHz?

I've seen a few people hit 1100 to 1200 with overvolt.

What I'd like to know is if anyone has hit 1000 with no overvolt. I've seen a 950.
by portets
Mon Jul 23, 2012 8:38 am
Forum: Graphics, sound and multimedia
Topic: Crackly audio through 3.5mm jack
Replies: 95
Views: 43600

Re: Crackly audio through 3.5mm jack

some audio-related fixes just made it to the github repository. not sure if they fix these issues though.

run rpi-update if you have it.
by portets
Mon Jul 23, 2012 2:57 am
Forum: General discussion
Topic: Chromium for Raspberry Pi BETA
Replies: 99
Views: 111504

Re: Chromium for Raspberry Pi BETA

Yeah, chromium is slower in every way for me, except one. Scrolling down after a page is fully loaded is significantly smoother on chromium vs midori.
by portets
Sun Jul 22, 2012 11:38 pm
Forum: Python
Topic: I am new to python
Replies: 7
Views: 1855

Re: I am new to python

Yeah :)

When I first started out, my learning style didn't fit with most tutorials. But that one worked well.
by portets
Sun Jul 22, 2012 11:15 pm
Forum: Graphics, sound and multimedia
Topic: Crackly audio through 3.5mm jack
Replies: 95
Views: 43600

Re: Crackly audio through 3.5mm jack

migube wrote:Then on Analog Jack I have to turn the Amplifier (Yamaha AV) much more, and on god listening strength white noise & some low distortion is audible.
Is the volume on your pi turned up all the way?
by portets
Sat Jul 21, 2012 10:39 am
Forum: General discussion
Topic: CRT jack quality
Replies: 20
Views: 4813

Re: CRT jack quality

That makes sense. I noticed a recent update to Netflix on the Wii turned off flicker reduction(very noticable), but I also noticed the text is now way sharper and more clear. That said, the Wii's internet browser doesn't flicker and still has fairly clean text. If the filter was a framebuffer thing ...

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