[BRLTTY] brltty stops working after login on fedora 27

[Barry Scott]

> On 20 Nov 2017, at 19:36, Barry Scott <barry at barrys-emacs.org> wrote:
> 
> I have been helping a friend get brltty working with fedora and I am happy to 
> test code changes and gather more info to help fix this.
> 
> Is this a problem that has a known fix?
> 
> I raised a bug against fedora that brltty does not work.
> The bug is https://bugzilla.redhat.com/show_bug.cgi?id=1515424
> 
> To save looking at bugzilla the details of the bug are:
> 
> Description of problem:
> 
> brltty works to allow the braille display to be show the login: and password: 
> prompt. But after that that brltty reports an error and the braille display no 
> long updates.
> 
> Version-Release number of selected component (if applicable):
> 
> Fedora is packaging brltty-5.5-8.fc27.x86_64. There are a couple
> of trivia patches. One to fix an include path, the other for java.
> 
> The systemd uses the following for brltty.
> 
> [Unit]
> Description=Braille display driver for Linux/Unix
> 
> [Service]
> Type=forking
> ExecStart=/usr/bin/brltty
> 
> [Install]
> WantedBy=multi-user.target
> 
> How reproducible:
> 
> Steps to Reproduce:

X11 is not started. Only using the virtual consoles.


> 1. Connect braille display to USB port
> 2. check that braille display has been initialised. (display shows message 
> from brltty)
> 3. check that the login: prompt is present
> 4. enter username
> 5. check that the password: prompt is present
> 6 enter password
> 7. braille display reports that brltty cannot get the screen
> 
> And here is the log from journalctl -u brltty for the above:
> 
> Nov 18 14:29:13 localhost.localdomain systemd[1]: Starting Braille display 
> driver for Linux/Unix...
> Nov 18 14:29:14 localhost.localdomain brltty[808]: BRLTTY 5.5 rev unknown 
> [http://brltty.com/]
> Nov 18 14:29:14 localhost.localdomain brltty[808]: BRLTTY 5.5 rev unknown 
> [http://brltty.com/]
> Nov 18 14:29:14 localhost.localdomain systemd[1]: Started Braille display 
> driver for Linux/Unix.
> Nov 18 14:29:16 localhost.localdomain brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:17 localhost.localdomain brltty[833]: Linux Screen Driver:
> Nov 18 14:29:17 localhost.localdomain brltty[833]: NoSpeech Speech Driver:
> Nov 18 14:29:19 localhost.localdomain brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:24 localhost.localdomain brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:29 localhost.localdomain brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:32 localhost.localdomain brltty[833]: console control error 5: 
> fd=8 vt=1 op=0X5603: Input/output error
> Nov 18 14:29:34 hostname brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:22 hostname brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:22 hostname brltty[833]: console control error 5: fd=16 vt=1 
> op=0X5603: Input/output error
> Nov 18 14:29:27 hostname brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:32 hostname brltty[833]: DBus error: get bus: 
> org.freedesktop.DBus.Error.AccessDenied: Failed to connect to socket /run/
> dbus/system_bus_socket: Permission denie
> Nov 18 14:29:32 hostname brltty[833]: ioctl[VT_GETSTATE] error 13: Permission 
> denied.
> 
> Barry
> 
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