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Old 04-07-2023, 01:44 AM   #1
Junior Member
Join Date: Apr 2023
Posts: 3
Default Alpine Linux support: my progress

Hi there,

I have a Dell D6000 Universal Dock that I need to unplug my HDMI cable into and plug into my laptop to use my monitor, and I would love it if I could just keep it plugged into the dock.

However, I am an insane person, because my laptop runs Alpine Linux. Alpine is a non-glibc Linux distribution, so I understand why this isn't supported yet. However, I'm halfway decent at software development, and would be happy to help support this platform.

Here is how far I've gotten:

1. Install Alpine Linux 3.17.1

2. Install the linux-lts-dev package

sudo apk add linux-lts-dev
3. Install dkms

git checkout https://github.com/dell/dkms.git
cd dkms
git checkout v3.0.10
sudo make install
4. Download displaylink Ubuntu installer and unpack it

- Go to https://www.synaptics.com/products/d...1?filetype=exe and download
- Go to download directory
- Unpack file

unzip "DisplayLink USB Graphics Software for Ubuntu5.6.1-EXE.zip"
mkdir displaylink
bash displaylink-driver-5.6.1-59.184.run --target displaylink
cd displaylink
5. Patch the evdi source code

mkdir evdi.tmp
tar -C evdi.tmp -xvzf evdi.tar.gz
cd evdi.tmp
patch -p1 <<'EOPATCH'
diff -Naur foo2/library/evdi_lib.c foo/library/evdi_lib.c
--- foo2/library/evdi_lib.c	2022-07-13 09:58:06.000000000 -0400
+++ foo/library/evdi_lib.c	2023-04-06 21:22:50.248134186 -0400
@@ -23,6 +23,8 @@
 #include <sys/types.h>
 #include <unistd.h>
+#include <linux/limits.h>
 // ********************* Private part **************************
 #define MAX_DIRTS           16
tar -cvzf ../evdi.tar.gz .
cd ..
6. Truncate the Makefile.gcc-plugins script

sudo truncate -s 0 /usr/src/linux-headers-$(uname -r)/scripts/Makefile.gcc-plugins
7. Run the displaylink installer

sudo env SYSTEMINITDAEMON=runit ./displaylink-installer.sh

Amazingly, the installer seems to have worked. I'm going to reboot and see what else needs to be done to make it work, probably involving making dkms work properly on Alpine
psypete is offline   Reply With Quote

alpine, glibc, linux, musl

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