PyADB instead of ADB. Possible workaround?

[Plandercozeron]

I'm using Ubuntu 18.10. ADB version 1.0.39.
May i use scrcpy in pair with PyADB instead of ADB?

The thing is ADB on my Ubuntu has bug or something
adb devices shows only 7 connected devices instead of 8 or more (ADB on windows works fine)
pyadb devices lists all devices properly.
First you push server.jar
Then what?

Thanks in advance

[npes87184]

Hi, @rom1v

I have seen many problems about the protocol and the initialization.

May we need to add some more developer guide in DEVELOP.md?

[rom1v]

adb devices shows only 7 connected devices instead of 8 or more (ADB on windows works fine)
pyadb devices lists all devices properly.

This is weird, since pyadb is just a wrapper which calls adb:
https://github.com/sch3m4/pyadb/blob/8f536c915c315eb9c4cc44088f5c067e68b02e3a/pyadb/adb.py#L108

[Plandercozeron]

I see. I tried both adb from /usr/bin (version 39) and adb from android studio from sdk/platfrom-tools/adb (version 41) - show max 7 devices. Probably the problem is within ubuntu itself.
Better ask in PyADB thread then

[Plandercozeron]

Made an issue at PyADB repo:
sch3m4/pyadb#16
Not sure if i gonna get any answers as it seems that repo is dead (or i can run through sources by myself). Since PyADB really is a wrapper to ADB it's better to ask PyADB devs.
I guess you can close that issue then

[Plandercozeron]

Nevermind. Not even close to ADB or PyADB
Seems like linux bug which is connected to xhci_hcd driver
dmesg gives me:
Not enough host controller resources for new device state.
can't set config #1, error -12

[Plandercozeron]

Resolved this case by overriding xHCI with EHCI
Disable xHCI

lspci -nn | grep USB \
| cut -d '[' -f3 | cut -d ']' -f1 \
| xargs -I@ setpci -H1 -d @ d0.l=0

Undo (d0.l=1):

lspci -nn | grep USB \
| cut -d '[' -f3 | cut -d ']' -f1 \
| xargs -I@ setpci -H1 -d @ d0.l=1

Now i can use my 20-port hub by 100% =)