On Tue, Nov 3, 2015 at 1:24 AM, Patrick Sathyanathan <wp...@hotmail.com> wrote:
> Hi Tom, > > Thanks much, that was exactly what was happening ! I tried with a sample > rate of 250k and the window responds just fine to keyboard/mouse. That's > great since I don't know much about keyboard/mouse event handling and was > dreading having to debug it. > > The Raspberry pi 2 has a quad core processor and as long as the flow-graph > does not take more than ~25-28% CPU (one entire processor) with nothing > else running the GUI window responds fine. Go above that and it stops > responding. > > I am new to the Pi 2 and having seen this issue reported on the Pi 2 > forums thought it was an obscure software bug. > > --Patrick > Patrick, Great! Glad to hear it. The RPi2 is a much more capable machine than the RPi was, but still limited, especially when running a GUI and a bunch of math signal processing. It'll probably take a bit to understand those limitations -- and then work to help improve them :) Tom > ________________________________ > > From: t...@trondeau.com > > Date: Tue, 27 Oct 2015 10:23:23 -0400 > > Subject: Re: [Discuss-gnuradio] Mouse/keyboard events not working > > raspberry pi 2 > > To: wp...@hotmail.com > > CC: discuss-gnuradio@gnu.org > > > > On Mon, Oct 26, 2015 at 6:10 PM, Patrick Sathyanathan > > <wp...@hotmail.com<mailto:wp...@hotmail.com>> wrote: > > Hi, > > > > > > I managed to build gnuradio from source using pybombs on a raspberry pi > > 2 machine running raspbian. It took many tries and the build itself > > took a day and only worked after increasing the swapfile size to 2GB. > > > > > > I am able to run osmocom_fft at 2.4Msps sample rate with an rtl-sdr > > dongle plugged in. However, the window does not respond to keyboard or > > mouse interactions. I unable to change the frequency in the text box. > > Nor can I move the slider. I have verified that gnuradio-companion > > works fine and accepts mouse/keyboard inputs. However, flowgraphs > > generated using GRC do not accept mouse/keyboard. > > > > > > Any idea what the problem could be ? If I switch to other windows when > > osmocom_fft is running the keyboard/mouse work just fine. I am using a > > wireless mouse and keyboard that share a single usb dongle. > > > > > > Thanks for any help, > > > > > > --Patrick > > > > > > It's quite possible that you are just overloading the rpi2's processor. > > What if you take the sample rate down to 250 ksps? > > > > Tom > > > >
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