<s>
Timeout	B-Application
Detection	I-Application
and	I-Application
Recovery	I-Application
or	O
TDR	O
is	O
a	O
feature	O
of	O
the	O
Windows	O
operating	B-General_Concept
system	I-General_Concept
(	O
OS	O
)	O
introduced	O
in	O
Windows	B-Application
Vista	I-Application
.	O
</s>
<s>
It	O
detects	O
response	O
problems	O
from	O
a	O
graphics	B-Device
card	I-Device
(	O
GPU	O
)	O
,	O
and	O
if	O
a	O
timeout	O
occurs	O
,	O
the	O
OS	O
will	O
attempt	O
a	O
card	O
reset	O
to	O
recover	O
a	O
functional	O
and	O
responsive	O
desktop	O
environment	O
.	O
</s>
<s>
It	O
then	O
tries	O
to	O
preempt	B-Operating_System
the	O
particular	O
task	O
,	O
this	O
operation	O
has	O
the	O
TDR	O
timeout	O
which	O
is	O
2	O
seconds	O
by	O
default	O
.	O
</s>
<s>
Once	O
the	O
timeout	O
is	O
up	O
and	O
the	O
task	O
is	O
not	O
completed	O
or	O
preempted	O
,	O
the	O
kernel	B-Operating_System
determines	O
that	O
the	O
GPU	O
is	O
frozen	O
and	O
proceeds	O
to	O
inform	O
the	O
respective	O
driver	O
about	O
the	O
detected	O
timeout	O
.	O
</s>
