Arch Linux User Repository

@miksnare, either install those old kernel headers or remove the kernel from your machine. Make sure you don't have it installed and there is no /usr/lib/modules/5.4.22-1-lts dangling from an old module that did not get removed properly.

When trying to install the evdi-git package, I receive the following error:

(2/2) Install DKMS modules ==> dkms install evdi/1.7.0 -k 5.6.13-arch1-1 ==> dkms install evdi/1.7.0 -k 5.4.41-1-lts ==> Unable to install module evdi/1.7.0 for kernel 5.4.22-1-lts: Missing kernel headers.

You are correct. The recent addition of the tag in upstream's git repository causes that. To have monotonic increasing version numbers, when there is a new commit, the pkgver variable and the pgkver() function should incorporate a temporary infix between 1.7.0 and r.

It looks like the version in the PKGBUILD is wrong. When installing, version 1.7.0.r0.gdc595db-1 is installed, not 1.7.0.r71.gdc595db-1

EDIT: upstream has already LIBVER := 1.7.0 in library/Makefile. Let's use that file for pkgver()

[ben@voyagerS9:~/src/pkgbuild]% git clone https://aur.archlinux.org/evdi-git.git
Cloning into 'evdi-git'...
remote: Enumerating objects: 52, done.
remote: Counting objects: 100% (52/52), done.
remote: Compressing objects: 100% (52/52), done.
remote: Total 52 (delta 0), reused 52 (delta 0), pack-reused 0
Unpacking objects: 100% (52/52), 19.49 KiB | 1.03 MiB/s, done.
[ben@voyagerS9:~/src/pkgbuild]% cd evdi-git                                                                      
[ben@voyagerS9:~/src/pkgbuild/evdi-git]% patch -p1 <<'EOF'
diff --git a/PKGBUILD b/PKGBUILD
index 0314632..2558acb 100644   
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -5,7 +5,7 @@

 set -u
 pkgname='evdi-git'
-pkgver=1.6.2.r29.gb5c5791
+pkgver=1.7.0.r71.gdc595db
 _pkgver="${pkgver%%.r*}" 
 pkgrel=1
 pkgdesc='kernel module that enables management of multiple screens, primarily for DisplayLink USB VGA DVI HDMI DisplayPort video'
@@ -31,7 +31,8 @@ sha256sums=('SKIP')
 pkgver() {
   set -u  
   cd "${_srcdir}"
-  git describe --long --tags | sed -e 's/^v//' -e 's/\([^-]*-g\)/r\1/' -e 's/-/./g'
+  libver=$(awk '/LIBVER :=/ {print $3}' < library/Makefile)
+  git describe --long --tags | sed -e 's/^v//' -e "s/1\.6\.2/${libver}/" -e 's/\([^-]*-g\)/r\1/' -e 's/-/./g'
   set +u
 }       

--
2.26.2

EOF
patching file PKGBUILD
[ben@voyagerS9:~/src/pkgbuild/evdi-git]% cd ..
[ben@voyagerS9:~/src/pkgbuild]% git clone https://aur.archlinux.org/displaylink.git
Cloning into 'displaylink'...
remote: Enumerating objects: 149, done.
remote: Counting objects: 100% (149/149), done.
remote: Compressing objects: 100% (91/91), done.
remote: Total 149 (delta 57), reused 148 (delta 57), pack-reused 0
Receiving objects: 100% (149/149), 49.07 KiB | 3.27 MiB/s, done.
Resolving deltas: 100% (57/57), done.
[ben@voyagerS9:~/src/pkgbuild]% cd displaylink
[ben@voyagerS9:~/src/pkgbuild/displaylink]% sed -i 's/pkgver=5.2.14/pkgver=5.3.1.34/' PKGBUILD
[ben@voyagerS9:~/src/pkgbuild/displaylink]% sed -i 's/=1369/=1576/' PKGBUILD
[ben@voyagerS9:~/src/pkgbuild/displaylink]% sed -i 's/md5sums=/sha256sums=/' PKGBUILD
[ben@voyagerS9:~/src/pkgbuild/displaylink]% updpkgsums
==> Retrieving sources...
  -> Downloading displaylink-driver-5.3.1.34.zip...
--2020-05-11 16:31:04--  https://www.displaylink.com/downloads/file?id=1576
Loaded CA certificate '/etc/ssl/certs/ca-certificates.crt'
Resolving www.displaylink.com (www.displaylink.com)... 54.77.143.153, 52.212.12.98, 34.252.102.94, ...
Connecting to www.displaylink.com (www.displaylink.com)|54.77.143.153|:443... connected.
HTTP request sent, awaiting response... 303 See Other
Location: http://assets.displaylink.com/live/downloads/software/f1576_DisplayLink%20USB%20Graphics%20Software%20for%20Ubuntu%205.3.1.zip?AWSAccessKeyId=AKIAJHGQWPVXWHEDJUEA&Expires=1589208064&Signature=qzDEYi29IMZP%2Bw2CKa2vAOM1foY%3D [following]
--2020-05-11 16:31:04--  http://assets.displaylink.com/live/downloads/software/f1576_DisplayLink%20USB%20Graphics%20Software%20for%20Ubuntu%205.3.1.zip?AWSAccessKeyId=AKIAJHGQWPVXWHEDJUEA&Expires=1589208064&Signature=qzDEYi29IMZP%2Bw2CKa2vAOM1foY%3D
Resolving assets.displaylink.com (assets.displaylink.com)... 52.218.56.107
Connecting to assets.displaylink.com (assets.displaylink.com)|52.218.56.107|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 13889958 (13M) [application/octet-stream]
Saving to: 'displaylink-driver-5.3.1.34.zip.part'

displaylink-driver-5.3.1.34.zip.part      100%[====================================================================================>]  13.25M  2.70MB/s    in 5.0s    

2020-05-11 16:31:09 (2.66 MB/s) - 'displaylink-driver-5.3.1.34.zip.part' saved [13889958/13889958]

  -> Found udev.sh
  -> Found 99-displaylink.rules
  -> Found displaylink.service
  -> Found displaylink-sleep.sh
==> Generating checksums for source files...
[ben@voyagerS9:~/src/pkgbuild/displaylink]% git diff
diff --git a/PKGBUILD b/PKGBUILD
index 7b551dd..4333f59 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -3,7 +3,7 @@
 # Contributor: rhabbachi

 pkgname=displaylink
-pkgver=5.2.14
+pkgver=5.3.1.34
 pkgrel=1
 pkgdesc="Linux driver for DL-6xxx, DL-5xxx, DL-41xx and DL-3x00"
 arch=('i686' 'x86_64')
@@ -13,18 +13,18 @@ depends=('evdi>=1.5.0' 'libusb>=1.0.0')
 makedepends=('grep' 'gawk' 'wget')
 install=
 changelog="release-note.txt"
-source=(displaylink-driver-$pkgver.zip::https://www.displaylink.com/downloads/file?id=1369
+source=(displaylink-driver-$pkgver.zip::https://www.displaylink.com/downloads/file?id=1576
        udev.sh
         99-displaylink.rules 
        displaylink.service 
         displaylink-sleep.sh)
-md5sums=('a96ae6fc0d244ec4f9a8e9482f6c1535'
-         'd5de775e41af06edbd8073adc490139d'
-         '20495d81c7d2540910ef86dc437b7fac'
-         'c141a15e973481c7d961f8e135627ca4'
-         '7cbd9ab2ac79ba66e8297689c6e5483e')
+sha256sums=('1e1231aa141c2a00f7e639a1835bdb915013f9ce84506ff1382e9c759f5c33b0'
+            'dc41ae8a2c287fc50fdda65bad8b0ffd76726f7773c25e1b0c5b7de95cecbdb6'
+            'c08a4726cf4e2f92c7cab00168ae9cc8d69d36a67c570609396a4a674934245a'
+            '342e83abfe2a38d5635ea928345e933d2ad127ebd3f7caca476663d4f583684b'
+            '8be4ab7616e38f91746bdd3e7fafe9004322a8be8e6722389746df9868d576e0')

-DLAGENTS=('https::/usr/bin/wget -O %o --post-data=fileId=1369&accept_submit=Accept %u')
+DLAGENTS=('https::/usr/bin/wget -O %o --post-data=fileId=1576&accept_submit=Accept %u')

 # Update with > updpkgsums

Make both packages with % makepkg and install with # pacman -U <package> as root

If the dkms automatism fails because of previously broken stuff, try to build/install manually

# dkms status
(look for evdi, add if needed and finally install:)
# dkms install evdi/1.7.0

@bnavigator can you explain what you did to install the latest release?

Works for me:

Linux 5.6.11-arch1-1 x86_64
Name                     : evdi-git
Version                  : 1.6.4.r71.gdc595db-1
Name                     : displaylink
Version                  : 5.3.1.34-1

(I patched the pkgver() function to use the latest tag 1.6.4 instead of the last reachable tag 1.6.2, otherwise it is the same package)

Current version successfully builds but does not work with latest kernel 5.6

uname -srm && pacman -Qi evdi-git | grep -E 'Version|Name' | grep -Ev 'Description' && pacman -Qi displaylink | grep -E 'Version|Name' && sudo lsmod | grep evdi

Linux 5.6.8-arch1-1 x86_64
Name            : evdi-git
Version         : 1.6.2.r71.gdc595db-1
Name            : displaylink
Version         : 5.2.14-1
evdi                   61440  0
drm_kms_helper        241664  2 evdi,i915
syscopyarea            16384  2 drm_kms_helper,evdi
sysfillrect            16384  2 drm_kms_helper,evdi
sysimgblt              16384  2 drm_kms_helper,evdi
drm                   565248  9 drm_kms_helper,evdi,i915

@brody, I'm not the maintainer but I'm not sure that adding linux-headers to makedepends will work for those using non-standard kernel packages.

Please add 'linux-headers' to makedepends. Then the package is buildable within a clean chroot environment.

Kind regards