Issues… and maybe fixes (if any).

I found an error when using image magick's convert to create EPS from fig that provides this message:

convert-im6.q16: attempt to perform an operation not allowed by the security policy `EPS' @error/constitute.c/IsCoderAuthorized/421

Solution:

• (as root) edit /etc/ImageMagick-6/policy.xml
• modify following line (change none → read|write)

  <policy domain="coder" rights="none" pattern="EPS" />

In some cases, after an installation is complete, the system boots to a GRUB prompt. The issue may be caused by a different disk assignment during installation. Things is not so bad since GRUB prompt is very shell-like (e.g. double-tab for completion):

To list available disks:

> ls 

To list content of first partition on the first disk (/dev/sda1) that is using GPT:

> ls (hd0,gpt1) 

So, to boot an installation on second partition instead:

> linux (hd0,gpt2)/boot/vmlinuz<...>
> initrd (hd0,gpt2)/boot/initrd.img<...>
> boot

Device:

# lspci -nn | grep BCM
02:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)

Install: broadcom-sta-dkms, firmware-linux, firmware-b43-installer (b43-fwcutter)

*note*: only solves the Wireless Driver part… NOT the bluetooth hardware!

# lsusb | grep BCM
Bus 002 Device 004: ID 0a5c:216d Broadcom Corp. BCM43142A0 Bluetooth 4.0
# dmesg | grep blue
[    8.850007] bluetooth hci0: firmware: failed to load brcm/BCM43142A0-0a5c-216d.hcd (-2)
[    8.850197] bluetooth hci0: Direct firmware load for brcm/BCM43142A0-0a5c-216d.hcd failed with error -2

So, download BCM43142A0-0a5c-21d6.hcd in here and place it /lib/firmware/brcm/ (create that path if it does not exist).

• tapping on my laptop touchpad is NOT working
  • moving around & button clicks are working
  • need to create file /etc/X11/xorg.conf.d/90-touchpad.conf

    90-touchpad.conf

    Section "InputClass"
            Identifier "libinput touchpad catchall"
            MatchIsTouchpad "on"
            MatchDevicePath "/dev/input/event*"
            Driver "libinput"
            Option "Tapping" "on"
    EndSection

• lid event does not trigger suspend (but manual suspend works)
  • this is a systemd-related aftermath: xfce power manager allows/assumes login to handle lid
  • fix:

    $ xfconf-query -c xfce4-power-manager -p /xfce4-power-manager/logind-handle-lid-switch -s false

• issues when logging out/shutdown
  • may be caused by intel graphics library? i915?
  • can install lightdm - but shutdown/restart always gets login page (=logout)
• wicd feature is an issue for system with multiple users
  • shared wifi password, no option to make private

• login page (lightdm?) - cannot shutdown/reboot! read here…
  • found a fix here
  • i just needed to edit /etc/pam.d/lightdm-greeter and changed pam_systemd.so to pam_elogind.so (but, may cause issues with suspend/hibernate?)
• laptop battery quickly drain below 30 percent
  • setup higher critical value for power management

    gsettings list-keys org.cinnamon.settings-daemon.plugins.power
    gsettings set org.cinnamon.settings-daemon.plugins.power use-time-for-policy false
    gsettings set org.cinnamon.settings-daemon.plugins.power percentage-low 30
    gsettings set org.cinnamon.settings-daemon.plugins.power percentage-critical 25
    gsettings set org.cinnamon.settings-daemon.plugins.power percentage-action 23

  • or use dconf-editor

Youtube videos keep resetting the volume settings to 100%! The culprit is flat-volumes. Modify /etc/pulse/daemon.conf and set flat-volumes=no.

I need to recompile syslinux - just to remind myself, other than the usual development packages (build-essential, etc), I also need nasm and upx-ucl.

apt install nasm and upx-ucl

I found this in my old notes… I somehow found an autostart program geoclue-demo-agent.desktop, which I obviously do not need. So, simply remove that from autostart path

# rm /etc/xdg/autostart/geoclue-demo-agent.desktop

trying two options found… so far, not successful? keeping this here for reference.

1. option 1:
   • install alsa-utils
   • make sure sound is not muted and set to desired volume level
   • run (as root) alsactl store
2. option 2:
   • edit (as root) /etc/pulse/defaults.pa
     • can also copy this to home folder ??? for 1-user solution…
   • comment out 'load-module module-device-restore'

• wifi firmware missing after first restart
  • manually install firmware-ralink
• network manager cannot connect using wifi
  • edit /etc/NetworkManager/NetworkManager.conf
  • add

    [device]
    wifi.scan-rand-mac-address=no