Re: Planet Cosmo Communicator
 

Some more things - my Fn key doesn't work as such, but as Win key, even though I selected Cosmo keyboard in the settings. Do you know how I can fix this, as currently I'm using a Logitech wireless receiver for the keyboard?

Also seems Bluetooth is not working.

Re: Planet Cosmo Communicator
 

The driver compiled and installed, but seems the kernel is compiled without DRM support. This is dumped in dmesg when I insert the device in an USB-C port.

Re: Planet Cosmo Communicator
 

Looks like they are using the hwcomposer driver with the help of libhybris.

Interesting that there are other Mali Midgard drivers available for this platform. I wonder if I would be able to compile and use them.

Re: Planet Cosmo Communicator
 

It is Mali Bifrost, not Midgard on Cosmo. For using with Panfrost, the problem is that it is kernel 4.4 and has no DRM driver for display subsystem (CONFIG_DRM could be enabled though to allow your DisplayLink module to load).

I looked into running mainline kernel a bit, MT6771 seems to be closely related to MT8183 MediaTek had been mainlining for Chromebooks. I got it to boot to ramdisk with USB host based on MT8183 support, but getting the display will be likely problematic still.

Re: Planet Cosmo Communicator
 

According to Debian wiki, Midgard and Bifrost are most likely identical.

https://wiki.debian.org/MaliGraphics#Kernel_drivers

Also there seems to be both Bifrost and Midgard drivers in the kernel sources. Dunno if they can be of any help.

https://github.com/gemian/cosmo-linu...k/gpu/gpu_mali

Re: Planet Cosmo Communicator
 

... and mobile broadband?

Thank you for asking the right questions.

Re: Planet Cosmo Communicator
 

I was holding off getting a Cosmo until cellular support in linux was a thing. It was added in July so I placed an order for an in-stock unit and received it in just a few days (drop-shipped from HK).

Phone calls and SMS messaging seem to work OK. Working on testing mobile data now.

So far I am cautiously optimistic. Adam Z. Lein posted a review where he recommeded using mtrack to make the touchscreen function like a touchpad which makes the full desktop experience very usable. link

My biggest concern right now is the success rate I've had just installing and running software in linux. Kodi, cairo-dock, firefox, octave all installed & ran fine. Libre-office was also successful, tho I had to hold the SMS messaging package or apt would try to remove it. VLC, blender, stellarium all failed to run with various OpenGL errors or outright seg faults.

I don't prefer KDE so installed the MATE desktop and that worked fine. When I tried to change the display manger the system failed to boot, so I need to reinstall again. There is a problem where the screen occasionally freezes. Sometimes the mouse will still move when this happens, but so far I haven't found a recovery option from this frozen state outside from holding the power button for 10 seconds and rebooting. There are no F-keys so changing TTY isn't an option. Next time I'll setup an ssh server so I can try that.

Re: Planet Cosmo Communicator
 

Have to try this. :)

Btw, I've tried to get DisplayLink support in it (for USB-C devices), but couldn't get the driver compiling with the previous version. Might have more luck now.

Re: Planet Cosmo Communicator
 

Mobile data works too. Posting this using t-mobile service at 4G speeds.

Re: Planet Cosmo Communicator
 

Does anyone else with a Cosmo have this problem?

When I close the screen the entire first row of keyboard keys (the number keys) all get pressed. When I open it I am presented with the linux unlock screen where about 9 gazillion characters have been entered into the password field.

When this happens the best recovery is to wait until the screensaver comes back on, and then wake it up and I have an empty password field.