Tails

#5 Updated by sdsx4 2014-10-12 05:32:50

This is a bug in xserver-xorg-input-evdev. Newer version needed. https://bugs.freedesktop.org/show_bug.cgi?id=54387 and fixed in 2.9 I think

#6 Updated by sdsx4 2014-10-12 05:38:09

intrigeri wrote:

> If anyone is affected by this bug and has good reasons not to use a better client to display the VM, please make it clear here. If that doesn’t happen, I think we should close this ticket next time we do Redmine gardening.

Which client do you suggest though? Wheel Scrolling is not working in virt-manager’s own console, and it’s not working in spice client, and it’s not working in remote-viewer, and it’s not working in VNC.

???

#7 Updated by emmapeel 2014-10-12 07:10:28

Other user reports this problem, and says that xserver-xorg-input-evdev on fedora 20 live works well for him. It is 2.9 or 2.8 (he is not sure)

#8 Updated by intrigeri 2014-10-12 11:24:30

> Which client do you suggest though?

I reverted the changed made in the comment you’re quoting, and wrote “I messed up” => please ignore it.

#9 Updated by intrigeri 2014-10-12 11:26:53

> This is a bug in xserver-xorg-input-evdev. Newer version needed.
> https://bugs.freedesktop.org/show_bug.cgi?id=54387 and fixed in 2.9 I think

Thanks! This explains why it works on Tails/Jessie.

Are you interesting in investigating it further? e.g.

• look if there’s a bug report on Debian about it; if not, file one
• check if the commit that fixes it on 2.9 applies easily on top of Debian Wheezy’s xserver-xorg-input-evdev

#10 Updated by sdsx4 2014-10-12 13:01:49

> * look if there’s a bug report on Debian about it; if not, file one

They have this https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714100 and it says it’s still present but I think that report is confused/outdated in saying that new version is still affected, because after downloading another debian-based livecd ( http://ftp.spline.de/mirrors/siduction/iso/paintitblack/lxqt/amd64_2014-05-08_17-04/siduction-14.1.0-paintitblack-lxqt-amd64-201405081704.iso ) which contains xserver-xorg-input-evdev version 2.8.2-1+b1 I was able to confirm that scrolling with mousewheel in fact works with that version.

> * check if the commit that fixes it on 2.9 applies easily on top of Debian Wheezy’s xserver-xorg-input-evdev

trying to apply patches from https://bugs.freedesktop.org/show_bug.cgi?id=54387#c4 against http://ftp.de.debian.org/debian/pool/main/x/xserver-xorg-input-evdev/xserver-xorg-input-evdev_2.7.0.orig.tar.gz fails:

% patch < evdev-1-4-Move-allocation-of-EvdevRec-into-a-helper-function.patch
patching file evdev.c
Hunk #1 succeeded at 2389 (offset –72 lines).

% patch < evdev-2-4-Move-some-stuff-into-the-new-alloc-function.patch
patching file evdev.c
Hunk #1 succeeded at 2392 (offset –72 lines).
Hunk #2 succeeded at 2433 (offset –72 lines).

% patch < evdev-3-4-Split-rel-and-abs-axis-mapping-into-two-separate-arrays.patch
patching file emuWheel.c
Hunk #1 succeeded at 118 (offset 1 line).
patching file evdev.c
Hunk #1 FAILED at 123.
Hunk #2 succeeded at 489 (offset 10 lines).
Hunk #3 succeeded at 711 (offset 10 lines).
Hunk #4 succeeded at 793 (offset 6 lines).
Hunk #5 succeeded at 833 (offset 6 lines).
Hunk #6 succeeded at 1346 with fuzz 2 (offset 16 lines).
Hunk #7 succeeded at 1363 (offset 16 lines).
Hunk #8 succeeded at 1395 (offset 15 lines).
Hunk #9 succeeded at 1407 (offset 15 lines).
Hunk #10 succeeded at 1429 (offset 15 lines).
Hunk #11 succeeded at 1559 (offset 15 lines).
Hunk #12 succeeded at 1567 (offset 15 lines).
Hunk #13 succeeded at 1587 (offset 15 lines).
Hunk #14 succeeded at 1754 (offset 15 lines).
Hunk #15 succeeded at 2403 (offset –72 lines).
Hunk #16 FAILED at 2623.
2 out of 16 hunks FAILED — saving rejects to file evdev.c.rej
patching file evdev.h
Hunk #1 FAILED at 158.
1 out of 1 hunk FAILED — saving rejects to file evdev.h.rej

% patch < evdev-4-4-Allow-relative-scroll-valuators-on-absolute-devices-54387.patch
patching file evdev.c
Hunk #1 succeeded at 702 (offset 10 lines).
Hunk #2 succeeded at 1236 (offset 19 lines).
Hunk #3 succeeded at 1245 (offset 19 lines).
Hunk #4 succeeded at 1285 (offset 19 lines).
Hunk #5 FAILED at 1345.
Hunk #6 succeeded at 1384 (offset 16 lines).
Hunk #7 succeeded at 1491 (offset 15 lines).
Hunk #8 succeeded at 1765 (offset 15 lines).
Hunk #9 succeeded at 1783 (offset 15 lines).
1 out of 9 hunks FAILED — saving rejects to file evdev.c.rej

#14 Updated by sdsx4 2014-10-14 11:13:11

intrigeri wrote:
> Applied the patch that was used in Fedora 17 against evdev 2.7.0, works for me.

I have extracted two .patch files from [1] and applied them to source code from [2]. The resulting evdev_drv.so file seems to work fine in tails 1.2-rc1 and most importantly the mousewheel works now in spice/kvm environment.

The build was done in tails 1.2-rc1 environment using debuild.

[1] ftp://fr2.rpmfind.net/linux/fedora-secondary/development/rawhide/source/SRPMS/x/xorg-x11-drv-evdev-2.7.0-2.fc17.src.rpm
[2] http://ftp.de.debian.org/debian/pool/main/x/xserver-xorg-input-evdev/xserver-xorg-input-evdev_2.7.0.orig.tar.gz