I take it that this is the problem that you are describing: https://wiki.batc.org.uk/FreqShow#FreqS ... nch_Screen
It is caused by an incompatibility between PyGame (the Python gaming library used by FreqShow) and the multitouch driver for the 7" screen. I have spent hours trying to make it work. I had a choice of disabling the functionality all together, or including it in "Cursor and trackpad" mode, which is what I chose to do.
You're welcome to try to find the solution and I will happily incorporate it if you can.
and https://forums.adafruit.com/viewtopic.p ... 8&start=30
At least there is a solution.
This release adds peripheral features and minor enhancements. Most important are the independent LeanSDR receiver settings menu https://wiki.batc.org.uk/Lean_DVB_receiver and the ability to generate a Receive local oscillator for a 71 MHz receive up-converter https://wiki.batc.org.uk/RX_Up-converter_LO_Capability. Full listing of changes:
New receive menu to allow independent selection of DATV receive parameters
MPEG-2 DATV receive capability after purchase and installation of key
Programmable ADF4351 output during receive for upconverters
Direct transmit frequency entry from frequency selection menu
New "clear" key on keyboard to clear entry line
USB disk automount enabled by default in Raspbian Stretch
10-character locator used as basis for locator change
Old BATC Streamer removed from output menu.
I have just released a some significant improvements to the configuration of the LeanDVB Receive software in the Portsdown. Using an RTL-SDR, it will now receive strong DATV signals throughout the full frequency range of the RTL-SDR (including 71 MHz without a converter) at symbol rates from 66 KS up to 2MS. At Symbol Rates of 1MS and above the Constellation and Parameter overlays should be turned off to conserve CPU resources for the receive decoder. On deselection of receive, the system occasionally locks-up and needs a reboot, but I have managed to reduce the likelihood of this happening from previous software versions. Clearly, smoothest results are obtained using a video monitor (not HDMI) plugged into the RPi or the Element 14 7 inch screen.
Full release contents:
- LeanDVB Performance Improvements
- Bugfix BATC Streamer label
- Bugfix LeanDVB Preset storage
- Prep for LimeSDR USB
I began an update of my Stretch card in the Portsdown last night. It was connected by cable to LAN. Power was a 3S LiPo because I was in the house to get full strength internet. I noticed an hour later that it hadn't progressed further than 4 out 10 fourth X. To save the £40 battery I had to turn off the Portsdown. It's cheaper to redo the software! All the updates to date have been brisk 10 minute tasks. I hope no-one else has the same problem. Note to self - do save the settings to a USB memory stick per one of the menu settings.
Dave - Can you provide some feedback for the touch screen button press as at the moment I think it goes off to check and that can take several seconds so it's not clear the button event has been registered.
So it locked up and lost access to WiFi or the other way around perhap. On connecting Ethernet and logging in I see:
Webcam device name is none
Video capture device name is $f▒v
No Touchscreen found: No such file or directory
Using the menu I can get back the ncurses screen and then update using the console which is a lot more informative (maybe this could happen on the touch screen?)
The problem was in dpkg. It advises running 'sudo dpkg --configure -a to fix it. I have done this and re-started the upgrade. I think it just takes a long long time.