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handy tech braille driver crashed nvda #3709

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nvaccessAuto opened this Issue Dec 10, 2013 · 9 comments

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nvaccessAuto commented Dec 10, 2013

Reported by bdorer on 2013-12-10 23:29
I've just connected my Handy Tech braille display to the computer through a USB2Com-Converter.
As I select the braille driver and press ok, nvda crashes without providing a log file.
Blocking #3213, #4456

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nvaccessAuto commented Dec 11, 2013

Comment 1 by jteh on 2013-12-11 02:08
Several users have reported such issues on the mailing lists. This is related to the Handy Tech COM server, so it needs to be investigated and fixed by Handy Tech. Are you able to report this to Handy Tech? If you can, feel free to copy me on any emails. If not, I can start the conversation with my contact, but I'd need you or someone else experiencing the problem to take it further, since I don't own a Handy Tech display and can't help with the investigation.

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nvaccessAuto commented Dec 11, 2013

Comment 2 by bdorer on 2013-12-11 09:22
I'll write to Handy Tech today and refer to this ticket.

Furthermore: If the display is connected and NVDA starts, I get the following message in German. I tryed to translate it in to english:

NVDA.exe - Error in Application
The instruction in "0x7e376779" refers to memory in "0x00000000". The process "read" wasn't possible on the memory.

Klick "OK" to cancel the programm.
Klick "cancel " to debug .

German Message:
NVDA.exe - Fehler in Anwendung
Die Anweisung in "0x7e376779" verweist auf Speicher in "0x00000000". Der Vorgang
"read" konnte nicht auf dem Speicher durchgeführt werden.

Klicken Sie auf "OK", um das Programm zu beenden.
Klicken Sie auf "Abbrechen", um das Programm zu debuggen.

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nvaccessAuto commented Feb 4, 2014

Comment 3 by bdorer on 2014-02-04 23:11
Handytech provided me a dll which fixes the crash. I asked them to commit the debugged file in time for 2014.1.

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nvaccessAuto commented Feb 5, 2014

Comment 4 by jteh on 2014-02-05 00:37
Unfortunately, this is very unlikely to make it into 2014.1, as there isn't sufficient time left for testing.

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nvaccessAuto commented Sep 8, 2014

Comment 5 by jteh on 2014-09-08 09:59
Handy Tech just sent me the updated files.
Changes:
Milestone changed from None to 2014.4

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nvaccessAuto commented Sep 10, 2014

Comment 7 by James Teh <jamie@... on 2014-09-10 02:22
In [8a4607a]:

NVDA no longer crashes when attempting to use a Handy Tech braille display in some cases.

Re #3709.

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nvaccessAuto commented Sep 10, 2014

Comment 8 by James Teh <jamie@... on 2014-09-10 02:26
In [290643e]:

Merge branch 't3709' into next

Incubates #3709.

Changes:
Added labels: incubating

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nvaccessAuto commented Sep 10, 2014

Comment 9 by jteh on 2014-09-10 10:32
It'd be great if anyone experiencing this can test a current next snapshot and confirm whether it is fixed there. Thanks.

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nvaccessAuto commented Oct 8, 2014

Comment 11 by James Teh <jamie@... on 2014-10-08 00:35
In [688e8f8]:

NVDA no longer crashes when attempting to use a Handy Tech braille display in some cases.

Fixes #3709.

Changes:
Removed labels: incubating
State: closed

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