** Changed in: brltty (Ubuntu)
Status: Confirmed => Fix Committed
** Changed in: brltty (Ubuntu)
Importance: Undecided => High
** Description changed:
+ * Impact
+
+ Since the fix for CVE-2018-1116 in policykit-1 the braille display
+ doesn't work in graphical UIs
+
+ * Test case
+ Log into an Ubuntu/GNOME session and activate the braille display
+
+ * Regression potential
+ The braille display should keep working on the command line and in graphical
sessions
+
+ ------------------
+
+
$ lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
$ apt-cache policy brltty
brltty:
- Installed: 5.5-4ubuntu2
- Candidate: 5.5-4ubuntu2
- Version table:
- *** 5.5-4ubuntu2 500
- 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
- 100 /var/lib/dpkg/status
+ Installed: 5.5-4ubuntu2
+ Candidate: 5.5-4ubuntu2
+ Version table:
+ *** 5.5-4ubuntu2 500
+ 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
+ 100 /var/lib/dpkg/status
- $ apt-cache policy policykit-1-gnome
+ $ apt-cache policy policykit-1-gnome
policykit-1-gnome:
- Installed: (none)
- Candidate: 0.105-6ubuntu2
- Version table:
- 0.105-6ubuntu2 500
- 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
+ Installed: (none)
+ Candidate: 0.105-6ubuntu2
+ Version table:
+ 0.105-6ubuntu2 500
+ 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
Expected behavior:
After a system upgrade, the braille display should function as before the
upgrade.
Actual behavior:
Since the upgrade, the braille display only works in console mode
(Ctrl+Alt+F3, -F4, etc.)
In GUI mode, the display reads "Screen not in text mode".
Restarting Orca (screenreader) has no effect. Restarting the system has no
effect.
This is the upgrade command, taken from /var/log/apt/history.log:
Start-Date: 2018-07-17 07:47:02
Commandline: /usr/bin/unattended-upgrade
Upgrade: libpolkit-gobject-1-0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1),
libpolkit-agent-1-0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1),
libpolkit-backend-1-0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1),
policykit-1:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1), gir1.2-polkit-1.0:amd64
(0.105-20, 0.105-20ubuntu0.18.04.1)
End-Date: 2018-07-17 07:47:04
These are the error messages taken from /var/log/syslog:
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: BrlAPI connection fd=22 accepted:
local <unnamed>
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: BrlAPI connection fd=22
accepted: local <unnamed>
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: BrlAPI connection fd=22 accepted:
local <unnamed>
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: BrlAPI connection fd=22
accepted: local <unnamed>
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: BrlAPI connection fd=22 accepted:
local <unnamed>
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: BrlAPI connection fd=22
accepted: local <unnamed>
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty:
polkit_authority_check_authorization_sync error 11: Resource temporarily
unavailable.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: brltty 5.5-4ubuntu2
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
Date: Wed Jul 18 11:03:27 2018
ExecutablePath: /bin/brltty
InstallationDate: Installed on 2018-05-15 (63 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
LocalLibraries: /usr/local/lib/libgpg-error.so.0.24.2
/usr/local/lib/libgcrypt.so.20.2.2
SourcePackage: brltty
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.brltty.conf: 2018-05-16T09:36:35.497752
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https://bugs.launchpad.net/bugs/1782320
Title:
Braille display inoperable in GUI since polkit-update
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