Bug 1540056 - Xwayland reports send_key: assertion 'scancode != 0'
Summary: Xwayland reports send_key: assertion 'scancode != 0'
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: spice-gtk
Version: 7.5
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Default Assignee for SPICE Bugs
QA Contact: SPICE QE bug list
Jana Heves
URL:
Whiteboard:
: 1537525 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-01-30 07:38 UTC by Tomas Pelka
Modified: 2018-12-03 12:25 UTC (History)
8 users (show)

Fixed In Version: spice-gtk-0.35-1.el7
Doc Type: Known Issue
Doc Text:
Keyboard not working in VM browsed by *remote-viewer* and *virt-viewer* When run inside a Wayland session, *remote-viewer* and *virt-viewer* utilities do not recognize key events in a virtual machine. Moreover, Xwayland reports the following error: send_key: assertion 'scancode != 0'
Clone Of:
Environment:
Last Closed: 2018-12-03 12:25:46 UTC
Target Upstream Version:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1479682 0 unspecified CLOSED Xwayland reports keycode mapping 'unnamed', messes up spice VM keyboard 2021-02-22 00:41:40 UTC

Internal Links: 1479682

Description Tomas Pelka 2018-01-30 07:38:54 UTC 
Description of problem:
Key events in VM browsed by remote-viewer/virt-viewer and gnome-boxes most probably too are not recognized when remote-viewer/virt-viewer or gnome-boxes running inside wayland session.

Version-Release number of selected component (if applicable):
spice-gtk3-0.34-3.el7

How reproducible:
100%

Steps to Reproduce:
1. managed to get this reproduces when opening vv file in remote-viewer
2.
3.

Actual results:
lots of (remote-viewer:17111): GSpice-CRITICAL **: send_key: assertion 'scancode != 0' failed

Expected results:
no GSpice-CRITICALs and keyboard should be grabbed

Additional info:
Comment 1 Tomas Pelka 2018-01-30 07:42:37 UTC 
I'm not really sure whether this is supported or not. If not please do not close yet we should document and ass to release notes first.
Comment 2 Tomas Pelka 2018-01-30 07:43:06 UTC 
I'm not really sure whether this is supported or not. If not please do not close yet we should document and ass to release notes first.
Comment 3 Matěj Cepl 2018-01-30 16:11:36 UTC 
Perhaps related are Fedora bug 1512564 and bug 1479682 ?
Comment 4 Olivier Fourdan 2018-02-06 15:05:12 UTC 
*** Bug 1537525 has been marked as a duplicate of this bug. ***
Comment 5 Christophe Fergeau 2018-02-14 17:21:15 UTC 
(In reply to Tomas Pelka from comment #0)
> Description of problem:
> Key events in VM browsed by remote-viewer/virt-viewer and gnome-boxes most
> probably too are not recognized when remote-viewer/virt-viewer or
> gnome-boxes running inside wayland session.
> 

One note here, remote-viewer/virt-viewer/gnome-boxes can run natively as wayland clients on Fedora, and this issue with keyboard events only happen when they are explicitly run with GDK_BACKEND=x11.
On RHEL7, they always get run through Xwayland, not as native wayland clients?
Comment 10 Victor Toso 2018-05-25 14:30:39 UTC 
Patch merged upstream 28e3dc34424f5e5b0441f2341d777ae4362363f0
Thanks Olivier, for the fix.
Comment 11 Victor Toso 2018-06-22 08:23:32 UTC 
git tag --contains 28e3dc34424f5e5b0441f2341d777ae4362363f0
v0.35

The fix should be included in the rebase from bug 1562126
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