Macbook 9,1 Bluetooth on 19.10

Having Issues with bluetooth on 19.10, the good news is everything else seems to work fine with the one exception. here is the error for the firmware load.

~$ lsusb; dmesg | egrep -i ‘blue|firm’

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[ 0.124400] Spectre V2 : Enabling Restricted Speculation for firmware calls

[ 0.155408] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored

[ 3.369429] Bluetooth: Core ver 2.22

[ 3.369453] Bluetooth: HCI device and connection manager initialized

[ 3.369457] Bluetooth: HCI socket layer initialized

[ 3.369459] Bluetooth: L2CAP socket layer initialized

[ 3.369463] Bluetooth: SCO socket layer initialized

[ 3.434399] Bluetooth: HCI UART driver ver 2.3

[ 3.434401] Bluetooth: HCI UART protocol H4 registered

[ 3.434402] Bluetooth: HCI UART protocol BCSP registered

[ 3.434416] Bluetooth: HCI UART protocol LL registered

[ 3.434417] Bluetooth: HCI UART protocol ATH3K registered

[ 3.434428] Bluetooth: HCI UART protocol Three-wire (H5) registered

[ 3.434460] Bluetooth: HCI UART protocol Intel registered

[ 3.434506] Bluetooth: HCI UART protocol Broadcom registered

[ 3.434515] Bluetooth: HCI UART protocol QCA registered

[ 3.434516] Bluetooth: HCI UART protocol AG6XX registered

[ 3.434525] Bluetooth: HCI UART protocol Marvell registered

[ 3.634082] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)

[ 3.758053] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac4350c2-pcie.Apple Inc.-MacBook9,1.txt failed with error -2

[ 3.758079] brcmfmac 0000:02:00.0: Direct firmware load for brcm/brcmfmac4350c2-pcie.txt failed with error -2

[ 4.056082] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4350/5 wl0: Nov 26 2015 03:48:57 version (r602372) FWID 01-c45b39d6

[ 5.558864] Bluetooth: hci0: command 0xfc18 tx timeout

[ 7.073793] Bluetooth: BNEP (Ethernet Emulation) ver 1.3

[ 7.073795] Bluetooth: BNEP filters: protocol multicast

[ 7.073799] Bluetooth: BNEP socket layer initialized

[ 13.622672] Bluetooth: hci0: BCM: failed to write update baudrate (-110)

[ 13.622676] Bluetooth: hci0: Failed to set baudrate

[ 15.638895] Bluetooth: hci0: command 0x0c03 tx timeout

[ 23.862868] Bluetooth: hci0: BCM: Reset failed (-110)

Ubuntu 19.10 – How to sandbox Chromium installed via SNAP

In Ubuntu 19.04, I’ve installed firejail, and I’ve also installed Chromium from the apt repository.

When I’m browsing the web, I see no reason for my web browser to have access to every file on my file system, so I run Chromium like this:

firejail chromium-browser 

Doing it this way, Chromium only has access to the Downloads folder.

In Ubuntu 19.10, Chromium is no longer being installed via the apt repository. Instead, it is installed from the snap repository.

Firejail cannot sandbox the Chromium browser if Chromium was installed via snap.

I was hoping that snap itself would allow me to install Chromium in a manner where I can control the degree of sandbox isolation. However, it appears that the developer of the snap package has total control of this, and I cannot override their decisions to increase the isolation-level.

How can I achieve the same level of sandboxing as before, when running Chromium via a snap installation?

Prime indicator on ubuntu 19.10

i’ve an optimus laptop with nvidia prime installed and Ubuntu 19.10. I remember in Ubuntu 18.04 a prime indicator for switching prime mode just clicking the icon on the panel, it’s possible to use anything like this on Ubuntu 19.10? Also there are a windows-like option to start an application with a specific gpu?

Kubuntu 19.10 ISO

I have downloaded the Kubuntu 19.10 ISO file, then I attatched it to my Kubuntu virtual machine on VirtualBox and when I try to run the ISO file it gives me this error message: The configuration constructor in main failed due to a COM error. Check the release log of the VM for further details. (VERR_MAIN_CONFIG_CONSTRUCTOR_COM_ERROR).

Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed} why is VirtualBox giving me this error message and is there a way to fix this error? Please reply whenever you can, please and thank you.

Can I install zfs on my root partition in nightly ubuntu builds for 19.10?

I’m very excited for this new experimental feature in Ubuntu 19.10. I was wondering if anyone knew where/how I could try it out right now. I’ve seen some guides for older versions of Ubuntu, but I’m looking to use what the Ubuntu team has been working on recently.

I downloaded the official Ubuntu nightly build a few evenings ago and saw no ZFS choice in the GUI’s partition manager.