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Hi Devuan, my questions and found solutions.
1. ✔️ wireless RTL8723BE issue
/etc/modprobe.d/rtl8723be.conf
options rtl8723be ant_sel=1
2. ✔️ beep issue
~ uncomment set bell-style none in etc/inputrc
3. ✔️❌ am using ascii 2.0, how to upgrade to ascii 2.1?
~ trying apt update and apt upgrade
4. ❌ how to install virtualbox?
5. ❌ how to remove libreoffice?
6. ❌ this laptop came with nvidia
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)
do i need to install nvidia?
7. ✔️ lots of such error in dmesg (solved)
[ 8591.043222] pcieport 0000:00:1d.3: AER: Corrected error received: id=00eb
[ 8591.043870] pcieport 0000:00:1d.3: can't find device of ID00eb
[ 8591.043887] pcieport 0000:00:1d.3: AER: Corrected error received: id=00eb
[ 8591.043893] pcieport 0000:00:1d.3: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00eb(Receiver ID)
[ 8591.043899] pcieport 0000:00:1d.3: device [8086:9d1b] error status/mask=00000001/00002000
[ 8591.043903] pcieport 0000:00:1d.3: [ 0] Receiver Error (First)
~ trying https://bugs.launchpad.net/ubuntu/+sour … ug/1521173
8. ❌ setting firewall to block inbound and outbound, only whitelisted executable can go online
9. ❌ why firefox quantum use 20% cpu to play a youtube video?
10. ❌ laptop touchpad touch to click and double click doesn't work
11.
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