Weird and occasional audio behaviour
Hello everybody
I've always had this strange problem with Archlinux, and eventually I decidede to ask your opinion about it.
Sometimes I turn on my PC and audio doesn't work... Only in some applications!
Let me make it more clear: on these unlucky starts, I can hear KDE's login sound, as well as skype and kopete notifications, and even the bells when kmail receives a new mail.
Nevertheless, if I try to launch amarok, mplayer, mpc, youtube or anything else audio will simply not work [mplayer plays but reports an error about its being unable to find an audio device, amarok doesn't even start playing, youtube shows the video but no audio and so on].
When this happens, I simply reboot, and tipycally everything gets back normal on the second [or third, or else] time I boot.
Any clue what this could be?
Further informations:
* I [finally successfully] DID switch to systemd
* this problem didn't seem to appear after a particular update
* in phonon my backend is gstreamer
* whenever I need to set the volume [speakers, microphone, ...] I open a terminal and run alsamixer
Thanks for help
P.s. Sorry if this is a duplicate of some older post, I wasn't sure what to search at all XD
kde notifications system always keeps the soundcard you set in phonon busy, so if your soundcard does not work well with that, you might have to use dmix with alsa, unless you you have an audio server like jack in your setup, in which case the solution will be another
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I've following view in my database:
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Looking over these responses and not finding a lot of clarity yet in terms of leaving a trail for future readers to glean an answer from. I was just looking through the back-and-forth and curious myself about the issue First of all I think Jani's observations are quite on target. This CBO reaction is weird and does not work they way most Oracle users would expect it to work. Secondly, Jani really should tell us his Oracle version and folks providing answers should as well - the CBO is always being tweaked. Thirdly, Stefan provides a solution though it's a rather expensive solution to my taste. And finally, I think we as a group need to spend a bit more time reproducing things in code. I will give it a shot, feel free to correct anything I got wrong.
So first of all, I wrote this up quick on 12.1.0.2 and verified it was the same on 11.2.0.4
DROP TABLE my_table1 PURGE;
CREATE TABLE my_table1(
objectid INTEGER NOT NULL
,tsource VARCHAR2(30 Char)
,shape MDSYS.SDO_GEOMETRY
,PRIMARY KEY(objectid)
DROP TABLE my_table2 PURGE;
CREATE TABLE my_table2(
objectid INTEGER NOT NULL
,tsource VARCHAR2(30 Char)
,shape MDSYS.SDO_GEOMETRY
,PRIMARY KEY(objectid)
DROP TABLE my_table3 PURGE;
CREATE TABLE my_table3(
objectid INTEGER NOT NULL
,tsource VARCHAR2(30 Char)
,shape MDSYS.SDO_GEOMETRY
,PRIMARY KEY(objectid)
CREATE OR REPLACE PROCEDURE seeder(
p_count IN NUMBER
AS
sdo_foo MDSYS.SDO_GEOMETRY;
int_counter NUMBER := 1;
FUNCTION random_line
RETURN MDSYS.SDO_GEOMETRY
AS
num_x1 NUMBER;
num_y1 NUMBER;
num_offx NUMBER;
num_offy NUMBER;
BEGIN
num_x1 := dbms_random.value(-179,179);
num_y1 := dbms_random.value(-89,89);
RETURN MDSYS.SDO_GEOMETRY(
2002
,8265
,NULL
,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1)
,MDSYS.SDO_ORDINATE_ARRAY(
num_x1
,num_y1
,num_x1 + 0.0001
,num_y1 + 0.0001
END random_line;
BEGIN
FOR i IN 1 .. p_count
LOOP
sdo_foo := random_line();
INSERT INTO my_table1
VALUES (
int_counter
,'table1'
,sdo_foo
int_counter := int_counter + 1;
sdo_foo := random_line();
INSERT INTO my_table2
VALUES (
int_counter
,'table2'
,sdo_foo
int_counter := int_counter + 1;
sdo_foo := random_line();
INSERT INTO my_table3
VALUES (
int_counter
,'table3'
,sdo_foo
int_counter := int_counter + 1;
END LOOP;
INSERT INTO my_table1
VALUES (
0
,'table1'
,MDSYS.SDO_GEOMETRY(
2002
,8265
,NULL
,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1)
,MDSYS.SDO_ORDINATE_ARRAY(
-87.8211111
,42.5847222
,-87.8212
,42.5848
INSERT INTO my_table3
VALUES (
0
,'table3'
,MDSYS.SDO_GEOMETRY(
2002
,8265
,NULL
,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1)
,MDSYS.SDO_ORDINATE_ARRAY(
-87.8211111
,42.5848
,-87.8212
,42.5847222
COMMIT;
END seeder;
BEGIN
seeder(100000);
END;
SELECT 'my_table1: ' || COUNT(*) AS invalid_count FROM my_table1 WHERE MDSYS.SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(shape,0.05) <> 'TRUE'
UNION ALL
SELECT 'my_table2: ' || COUNT(*) AS invalid_count FROM my_table2 WHERE MDSYS.SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(shape,0.05) <> 'TRUE'
UNION ALL
SELECT 'my_table3: ' || COUNT(*) AS invalid_count FROM my_table3 WHERE MDSYS.SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(shape,0.05) <> 'TRUE';
BEGIN
INSERT INTO user_sdo_geom_metadata(
table_name
,column_name
,diminfo
,srid
) VALUES (
'MY_TABLE1'
,'SHAPE'
,MDSYS.SDO_DIM_ARRAY(MDSYS.SDO_DIM_ELEMENT('X',-180,180,.05),MDSYS.SDO_DIM_ELEMENT('Y',-90,90,.05))
,8265
COMMIT;
EXCEPTION
WHEN OTHERS
THEN
NULL;
END;
BEGIN
INSERT INTO user_sdo_geom_metadata(
table_name
,column_name
,diminfo
,srid
) VALUES (
'MY_TABLE2'
,'SHAPE'
,MDSYS.SDO_DIM_ARRAY(MDSYS.SDO_DIM_ELEMENT('X',-180,180,.05),MDSYS.SDO_DIM_ELEMENT('Y',-90,90,.05))
,8265
COMMIT;
EXCEPTION
WHEN OTHERS
THEN
NULL;
END;
BEGIN
INSERT INTO user_sdo_geom_metadata(
table_name
,column_name
,diminfo
,srid
) VALUES (
'MY_TABLE3'
,'SHAPE'
,MDSYS.SDO_DIM_ARRAY(MDSYS.SDO_DIM_ELEMENT('X',-180,180,.05),MDSYS.SDO_DIM_ELEMENT('Y',-90,90,.05))
,8265
COMMIT;
EXCEPTION
WHEN OTHERS
THEN
NULL;
END;
CREATE INDEX my_table1_spx ON my_table1
(shape)
INDEXTYPE IS MDSYS.SPATIAL_INDEX
NOPARALLEL;
CREATE INDEX my_table2_spx ON my_table2
(shape)
INDEXTYPE IS MDSYS.SPATIAL_INDEX
NOPARALLEL;
CREATE INDEX my_table3_spx ON my_table3
(shape)
INDEXTYPE IS MDSYS.SPATIAL_INDEX
NOPARALLEL;
BEGIN
dbms_stats.gather_table_stats(USER, 'MY_TABLE1');
dbms_stats.gather_index_stats(USER, 'MY_TABLE1_SPX');
dbms_stats.gather_table_stats(USER, 'MY_TABLE2');
dbms_stats.gather_index_stats(USER, 'MY_TABLE2_SPX');
dbms_stats.gather_table_stats(USER, 'MY_TABLE3');
dbms_stats.gather_index_stats(USER, 'MY_TABLE3_SPX');
END;
CREATE OR REPLACE VIEW my_view
AS
SELECT
objectid
,'table1' AS tsource
,shape
FROM
my_table1
UNION ALL
SELECT
objectid
,'table2' AS tsource
,shape
FROM my_table2;
set timing on;
-- QUERY #1
-- Jani's original setup, works as expected
SELECT
COUNT(*) AS single_geom_counter
FROM
my_view a
WHERE
MDSYS.SDO_RELATE(
a.shape
,MDSYS.SDO_GEOMETRY(
2002
,8265
,NULL
,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1)
,MDSYS.SDO_ORDINATE_ARRAY(
-87.8211111
,42.5848
,-87.8212
,42.5847222
,'mask=anyinteract'
) = 'TRUE';
-- QUERY #2
-- Now the problem statement
SELECT
COUNT(*) AS table_problem_counter
FROM
my_view a
WHERE
MDSYS.SDO_RELATE(
a.shape
,(SELECT b.shape FROM my_table3 b WHERE b.objectid = 0)
,'mask=anyinteract'
) = 'TRUE';
-- QUERY #3
-- Stefan's solution
SELECT /*+ ORDERED */
COUNT(*) AS stefans_solution
FROM
my_table3 a
,my_view b
WHERE
a.objectid = 0
AND MDSYS.SDO_RELATE(
a.shape
,b.shape
,'mask=anyinteract'
) = 'TRUE';
Anyhow, so the hard coded query #1 that Jani provided works exactly the way most folks would expect, the second item in the relate is applied to each spatial index participating in the view. I think we can agree this is what we want.
Now when we move on to the problem, well its all goes off the rails as I think its looks to apply the spatial filter to the view itself which lacks an index (not sure really)
So as Stefan says, you can work around this by rewriting things as query #3 does above though now its a full table scan of both tables in the view. This is a long way performance wise from Query #1!
So on my 12c test box
query #1 Elapsed: 00:00:00.016
query #3 Elapsed: 00:00:33.534
On 11g production box
query #1 Elapsed: 00:00:00.49
query #3 Elapsed: 00:02:31.45 (ouch!)
So hopefully someone else can jump in with more information on better solutions?
I overall tend to avoid the kind of unioned views that Jani is using here. I have a hard time recalling why but I must have been burned similarly many years ago when I was first starting with Oracle spatial. I tend to always want my spatial indexes right there where I can keep a grim stink eye on them. It may be that a unioned view with multiple spatial indexes behind it might just be a bad practice better done with a materialized view? Or maybe a lesser term? Unprofitable practice? fraught? "Best if you don't do that"?
Anyhow, I would be interested in what others have as input on the matter.
Cheers,
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Sue
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Hi guys, Can you give me an idea on how to solve the following issue? column01 column02 column03 column04 1 001 002 0 2 003
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Issue while uploading Partner Function in Sales Order through LSMW
Dear All, I have to make change some partner function at item level in existing sales order. I have created the LSMW for changing the partner function at item level. But while recording the system field (Field Name ) will maintained as beow: GVS_TC_D