Go to advanced search

by portets
Mon Jan 16, 2017 11:02 am
Forum: Troubleshooting
Topic: Pi 2 Voltage Bug?
Replies: 0
Views: 165

Pi 2 Voltage Bug?

Pi 2 arm voltage max is 1.4v? The default arm voltage of a Pi 1 is 1.2, allowing over_voltage=8 to raise it to 1.4. The default arm voltage of a Pi 2 is 1.3125, with over_voltage=4 reaching 1.4. Any higher over_voltage number doesn't seem to actually raise the arm voltage. Even with all sorts of oth...
by portets
Mon Jun 23, 2014 8:03 am
Forum: General discussion
Topic: Broadcom Driver ETA
Replies: 15
Views: 2517

Re: Broadcom Driver ETA

^ why does it seem nobody knows about broadcom's new official open driver they hired a dev for?
by portets
Fri Dec 27, 2013 12:39 pm
Forum: Advanced users
Topic: S-Video
Replies: 7
Views: 2751

Re: S-Video

I thought luminance was 1v peak to peak and chrominance was 0v to 0.3v. Anyway, I read that the R-Pi's GPIO's could do ~20MHz. Wouldn't that be enough? And couldn't the R-Pi's GPU driver be modified to output a color burst signal to software via a config.txt flag where it can be picked up by a progr...
by portets
Fri Dec 27, 2013 12:03 pm
Forum: Advanced users
Topic: S-Video
Replies: 7
Views: 2751

Re: S-Video

No, for a multitude of reasons including the one that the GPIOs are logic outputs (high or low) and the chrominance signal is analogue. The GPIO output pin can be either 3.3v or 0v it would not be possible to generate a chrominance signal. If you want S-Video output then you'll need a HDMI video co...
by portets
Fri Dec 27, 2013 9:11 am
Forum: Advanced users
Topic: S-Video
Replies: 7
Views: 2751

S-Video

Chrominance(color) can be disabled on the composite video out using "sdtv_disable_colourburst=1", effectively giving only Luminance(greyscale). This looks very sharp, as it is half of the S-Video signal. It is even sharper if fed directly to the Luminance port of an S-Video input on a capable TV. Al...
by portets
Thu Dec 26, 2013 6:55 am
Forum: General discussion
Topic: Experimental enhanced X driver (rpifb)
Replies: 98
Views: 42550

Re: Experimental enhanced X driver (rpifb)

Will this also speed up XWayland?

Just wondering if this work is forward-compatible.
by portets
Wed Dec 25, 2013 11:27 am
Forum: General discussion
Topic: Collbora web repo breaks gtk2 webkit
Replies: 15
Views: 2406

Re: Experimental enhanced X driver (rpifb)

edit: Disregard this post, wrong thread. Maybe the thread split mixed me up.

Will this also speed up XWayland?

Just wondering if this work is forward-compatible.
by portets
Thu Aug 22, 2013 11:12 pm
Forum: General discussion
Topic: Could this be related to the Pi's USB issues?
Replies: 7
Views: 706

Could this be related to the Pi's USB issues?

https://plus.google.com/u/0/11696035749 ... Zpndv4BCCD

I don't know enough about this to know if it's related.
by portets
Mon Jul 22, 2013 8:02 pm
Forum: Gaming
Topic: Mupen64Plus - N64 Emulator for the Pi
Replies: 202
Views: 90203

Re: Mupen64Plus - N64 Emulator for the Pi

It was never finished.
by portets
Tue Jul 02, 2013 9:13 pm
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 472459

Re: Overclocking

why does the pi have such a wimpy processor? The gpu is overrated because many times the processor ain't fast enough for the gpu. my iphone 3gs has a better processor compared to pi but has a worse gpu (i believe it has an equivalent to the VideoCore II). is there a board with the TI A15? A15 Keyst...
by portets
Tue Jul 02, 2013 3:22 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 472459

Re: Overclocking

dom wrote:600MHz is still the limit.
Are you sure this is still the RAM limit? I used to be able to put in any number higher than 600 just fine. Now if I put in 700 or higher the Pi only makes it halfway through the boot process before spitting errors and freezing.
by portets
Mon Jul 01, 2013 9:37 pm
Forum: Troubleshooting
Topic: Pi won't boot after firmware update
Replies: 14
Views: 2337

Re: Pi won't boot after firmware update

texy wrote:It all seems to be working today :D
There have been no updates to the firmware since my original post, so I don't know why it would start working all of a sudden. I'll check mine today.
by portets
Mon Jul 01, 2013 9:35 pm
Forum: Troubleshooting
Topic: Pi won't boot after firmware update
Replies: 14
Views: 2337

Re: Pi won't boot after firmware update

Strange, it happens to me even with main repository firmware updates.
by portets
Mon Jul 01, 2013 7:07 am
Forum: Troubleshooting
Topic: Really sluggish performance
Replies: 4
Views: 623

Re: Really sluggish performance

Youtube is unsupported until HTML5 video acceleration is available. I haven't tried facebook. Do other sites load in a reasonable time? Maybe you're running out of RAM on some sites. Could you post the output of the terminal command "top" while facebook is loading? How much RAM have you set aside to...
by portets
Sun Jun 30, 2013 6:02 pm
Forum: Troubleshooting
Topic: Pi won't boot after firmware update
Replies: 14
Views: 2337

Re: Pi won't boot after firmware update

Lob0426 wrote:...usually is the /boot is missing files or corrupt. If you have a second card copy its boot files.
Tried that, same thing happens. Seems the issue has something to do with the ext4. Maybe kernel files aren't copied correctly somehow?
by portets
Sun Jun 30, 2013 6:45 am
Forum: Troubleshooting
Topic: Pi won't boot after firmware update
Replies: 14
Views: 2337

Pi won't boot after firmware update

When my OS is on an external drive, my Pi won't boot after any firmware update via rpi-update or apt-get upgrade. But only if I change /etc/fstab like tutorials show. My method: write raspbian to SD and USB drive edit cmdline.txt to point to sda2 edit fstab to point to sda2 At this point everything ...
by portets
Fri Jun 28, 2013 8:38 pm
Forum: Advanced users
Topic: Same chip for sd card and usb?
Replies: 12
Views: 1135

Re: Same chip for sd card and usb?

No, and USB sticks tend to be very slow. Sometimes slower than SD cards.

Have you overclocked your Pi? This helps mine.

My Pi with OS on a USB3.0 stick and overclocked to 1100arm/600sdram/500core transfers files at about 10-20MB/s.
by portets
Thu Jun 27, 2013 10:08 pm
Forum: Pidora / Fedora
Topic: freeze
Replies: 12
Views: 27116

Re: freeze

I have this same issue. It's happened a couple times when running yum update.
by portets
Tue Jun 25, 2013 8:18 pm
Forum: Pidora / Fedora
Topic: Other DE's
Replies: 3
Views: 1207

Re: Other DE's

I also see that when trying to install gnome-panel, it tries to take in a mixture of gnome 3.4 packages from Fedora 17, and 3.6 packages from Fedora 18. Is this currently the expected behavior?
by portets
Tue Jun 25, 2013 5:49 am
Forum: Pidora / Fedora
Topic: Other DE's
Replies: 3
Views: 1207

Re: Other DE's

None of that worked. But I was just able to switch my DM to GDM from LightDM using: systemctl -f enable gdm.service By default GDM is masked for some reason. And apparently gnome-panel isn't installed and I can't install it because it's missing: libgnome-desktop-3.so.2 as well as a few other package...
by portets
Tue Jun 25, 2013 4:58 am
Forum: Raspbian
Topic: Latest Iceweasel
Replies: 28
Views: 5795

Re: Latest Iceweasel

I second a how-to.

And why not Iceweasel 21? There are some memory and scrolling performance improvements.
by portets
Tue Jun 25, 2013 4:53 am
Forum: Pidora / Fedora
Topic: Other DE's
Replies: 3
Views: 1207

Other DE's

Using a very high overclock and an external drive, Gnome 3.2 is very usable on Raspbian. Is there a way to get Gnome 3 working on Pidora? It appears to already be installed, but I get "Failed to load session gnome" and then: gnome-session[999]: Warning: Unable to find required component 'gnome-panel...
by portets
Tue Jun 25, 2013 4:16 am
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 472459

Re: Overclocking

Their gpu_freq isn't suspicious at all to me. with an overvolt of 6, mine can hit 565. With 8 I can do over 600, tested with quake3. Any higher causes artifacts, so I know it's working. But the highest arm clock I've ever seen here is 1300 with an 8 overvolt. I can hit 1225 with an 8 overvolt, but a...
by portets
Mon Jun 24, 2013 9:37 pm
Forum: Advanced users
Topic: Brand new rPi + bad F3 polyfuse
Replies: 56
Views: 12890

Re: Brand new rPi + bad F3 polyfuse

If that circuit is wired how I think it is, you weren't supposed to short the diode with a wire after removal. I think you just wired positive to negative directly.

Hopefully your power supply has short circuit protection.
by portets
Mon Jun 24, 2013 8:44 pm
Forum: Advanced users
Topic: Overclocking
Replies: 1125
Views: 472459

Re: Overclocking

They said they put it in turbo mode with raspi-config, but then increased arm_freq manually. Which means their over_voltage=6. 6 is not enough to sustain such a high overclock. 6 can't even bring a normal Pi above ~1150. 8 will bring top tier Pi's to ~1300. I think their Pi isn't getting triggered t...

Go to advanced search