evdi-dkms fails to build with jammy/linux-hwe-5.19

[Paolo Pisati]

[Impact]

evdi-dkms fails to build with jammy/linux-hwe-5.19.

[Test case]

 $ sudo apt-get install evdi-dkms

[Fix]

Backport evdi-dkms 1.12.0+dfsg-0ubuntu3 from kinetic that works both with 5.19 and 5.15 kernels.

[Regression potential]

It's the same DKMS we are already using in Kinetic and Lunar, it's the offically supported version (upstream doesn't have stable branches) and it contains all the fixes so far developed upstream.

[Łukasz Zemczak (sil2100)]

This is another direct-new-upstream-version-backport from kinetic, basically a 1.9 to 1.12. That is quite a big jump. What is the test story for making sure the new version does not regress? I know basically with the new kernels the experience is 'broken', but I'd like us to add some use cases into the test cases as well. Something more than just 'install to see if it builds'.

[Paolo Pisati (p-pisati)]

The evdi-dkms is a driver for the DisplayLink USB graphic devices[1,2], and without access to the target hardware, we don't have any chance to test it other than "it builds fine here": i suggest we stick as close as possible to the upstream version, hence the jump from 1.9 to 1.12.

1: https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu
2: https://www.synaptics.com/products/displaylink-graphics/displaylink-products

[Łukasz Zemczak (sil2100)]

Eh, okay, so I'm willing to give this one an exception as well, but only because this is an universe package. And certainly without this update the situation would be even worse as the dkms package wouldn't build correctly. I guess this can also fall under the HWE case, although for those we usually require some actual testing

What I'd appreciate is keeping an eye out on any bug reports appearing for this update in jammy after we land.

[Łukasz Zemczak (sil2100)]

Hello Paolo, or anyone else affected,

Accepted evdi into jammy-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/evdi/1.12.0+dfsg-0ubuntu2~22.04.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-jammy to verification-done-jammy. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-jammy. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[Kleber Sacilotto de Souza (kleber-souza)]

Confirmed that it can be built for both generic 5.15 and hwe 5.19 kernels:

=========================================================
Setting up evdi-dkms (1.12.0+dfsg-0ubuntu2~22.04.1) ...
Loading new evdi-1.12.0+dfsg DKMS files...
Building for 5.15.0-60-generic 5.19.0-32-generic
Building initial module for 5.15.0-60-generic
EFI variables are not supported on this system
/sys/firmware/efi/efivars not found, aborting.
Done.

evdi.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.15.0-60-generic/updates/dkms/

depmod...
Building initial module for 5.19.0-32-generic
EFI variables are not supported on this system
/sys/firmware/efi/efivars not found, aborting.
Done.

evdi.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.19.0-32-generic/updates/dkms/

depmod...

=========================================================

[Launchpad Janitor (janitor)]

This bug was fixed in the package evdi - 1.12.0+dfsg-0ubuntu2~22.04.1

---------------
evdi (1.12.0+dfsg-0ubuntu2~22.04.1) jammy; urgency=medium

  * No change, rebuild against the jammy user-space (LP: #2002320).

 -- Paolo Pisati <email address hidden> Mon, 09 Jan 2023 14:53:50 +0000

[Łukasz Zemczak (sil2100)]

The verification of the Stable Release Update for evdi has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.