X failing after 2 or 3 hours of using

hi, i've been using linux for some time now, i've used ubuntu, suse, fedora and now, arch. and sorry for my english by the way, but i'm not a native english speaker.
With the help from some tutorials i managed to setup my system nicely in my eeepc 1000HE, all works fine but one thing. It doesn't really interferes that much with my work but it's still anoying.
I have my system completely up-to-date and the latest stable release with slim login manager and lxde by the way.
The issue now:
After about 2 hours using my computer, i start getting some flashes. The screen just goes black for some miliseconds and when that happens i already now what's coming next. 10 minutes later the X just stops. The screen goes completely black and i'm able to do nothing. It also happens if i turn on the computer and come back a couple of hours later and start using it, even if the computer is just turned on doing nothing during that time.
I tried ctrl+alt+f2, login and restart x.. No can do! i reboot the computer on the terminal and i have another 2 hours without any problems at all... strange -.-'
I browsed for a solution and i found nothing, do any of you guys have a clue on what's happening?
thank you in advance.
Filipe Morais

Oct 3 15:46:05 DoomsdayDevice kernel: ===>rt_ioctl_giwscan. 1(1) BSS returned, data->length = 87
Oct 3 15:48:05 DoomsdayDevice kernel: ===>rt_ioctl_giwscan. 1(1) BSS returned, data->length = 87
Oct 3 15:50:05 DoomsdayDevice kernel: ===>rt_ioctl_giwscan. 1(1) BSS returned, data->length = 87
Oct 3 15:52:05 DoomsdayDevice kernel: ===>rt_ioctl_giwscan. 1(1) BSS returned, data->length = 87
Oct 3 15:54:05 DoomsdayDevice kernel: ===>rt_ioctl_giwscan. 1(1) BSS returned, data->length = 87
Oct 3 15:56:05 DoomsdayDevice kernel: ===>rt_ioctl_giwscan. 1(1) BSS returned, data->length = 87
Oct 3 15:57:29 DoomsdayDevice shutdown[4084]: shutting down for system reboot
Oct 3 15:57:31 DoomsdayDevice init: Switching to runlevel: 6
Oct 3 15:57:31 DoomsdayDevice NetworkManager: <info> (ra0): device state change: 8 -> 3
Oct 3 15:57:31 DoomsdayDevice NetworkManager: <info> (ra0): deactivating device (reason: 38).
Oct 3 15:57:31 DoomsdayDevice dhcpcd: received SIGTERM, stopping
Oct 3 15:57:31 DoomsdayDevice dhcpcd: ra0: removing interface
Oct 3 15:57:31 DoomsdayDevice kernel: mtrr: no MTRR for d0000000,10000000 found
Oct 3 15:57:31 DoomsdayDevice NetworkManager: <info> ra0: canceled DHCP transaction, dhcp client pid 1630
Oct 3 15:57:31 DoomsdayDevice kernel: ERROR!!! RTMPCancelTimer failed, Timer hasn't been initialize!
Oct 3 15:57:31 DoomsdayDevice kernel: ERROR!!! RTMPCancelTimer failed, Timer hasn't been initialize!
Oct 3 15:57:31 DoomsdayDevice NetworkManager: <WARN> nm_dhcp_manager_handle_event(): Received DHCP event from unexpected PID 1630 (expected 0)
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <WARN> nm_signal_handler(): Caught signal 15, shutting down normally.
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (eth0): now unmanaged
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (eth0): device state change: 2 -> 1
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (eth0): cleaning up...
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (eth0): taking down device.
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (ra0): now unmanaged
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (ra0): device state change: 3 -> 1
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (ra0): cleaning up...
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> (ra0): taking down device.
Oct 3 15:57:32 DoomsdayDevice NetworkManager: <info> exiting (success)
Oct 3 15:57:32 DoomsdayDevice nm-system-settings: disconnected from the system bus, exiting.
Oct 3 15:57:32 DoomsdayDevice nm-dispatcher.action: Disconnected from the system bus, exiting.
Oct 3 15:57:33 DoomsdayDevice syslog-ng[1244]: Termination requested via signal, terminating;
Oct 3 15:57:33 DoomsdayDevice syslog-ng[1244]: syslog-ng shutting down; version='3.0.4'
Oct 3 15:58:12 DoomsdayDevice syslog-ng[1245]: syslog-ng starting up; version='3.0.4'
x stoped at 15.57 some seconds before reboot.
no clue on what's happeing. xorg.0.log provides no usefull info also
I tried both ubuntu and fedora for a while before arch on this computer without any problems at all (except a driver not working in fedora and ubuntu beeing slow as hell). Also windows xp worked fine. it's not hardware, but just to be sure i tried backtrack (which was the only image i had avaliable) for a while today without problems. any other guesses?
if you want i can paste more logs

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Best regards
Catherine Andre
@mail: [email protected]

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when you re-created the sync group, does the member databases/hub database have pre-existing data?
when synching a sync group for the first time, make sure databases don't contain the same set of data, otherwise, you will run into conflicts which will completely slow down your sync...
I deleted the initial sync group because it wasn't syncing(auto or on-demand), nor creating a log entry with an error indicating why.
So, I simply deleted the sync group and re-created it with the same exact databases and settings. I did not delete all data in the SQL Azure database-- I was under the assumption that the sync service, with the tracking tables were smart enough to not get
confused with pre-existing data, but apparently that's not how this works?
I obviously can't delete the data in the source database(MSSQL on-premise), but I could delete the tables in the SQL Azure database if that's supposed to fix the problem-- then we'll just have to wait multiple days for it to be completely re-initialized,
hopefully without error... Is there a way to seed the data in some way to prevent this extremely log first sync?
Thank you for your help.

Unit test fails after upgrading to Kodo 4.0.0 from 4.0.0-EA4

I have a group of 6 unit tests failing after upgrading to the new Kodo
4.0.0 (with BEA) from Kodo-4.0.0-EA4 (with Solarmetric). I'm getting
exceptions like the one at the bottom of this email. It seems to be an
interaction with the PostgreSQL driver, though I can't be sure. I
haven't changed my JDO configuration or the related classes in months
since I've been focusing on using the objects that have already been
defined. The .jdo, .jdoquery, and .java code are below the exception,
just in case there's something wrong in there. Does anyone have advice
as to how I might debug this?
Thanks,
Mark
Testsuite: edu.ucsc.whisper.test.integration.UserManagerQueryIntegrationTest
Tests run: 15, Failures: 0, Errors: 6, Time elapsed: 23.308 sec
Testcase:
testGetAllUsersWithFirstName(edu.ucsc.whisper.test.integration.UserManagerQueryIntegrationTest):
Caused an ERROR
The column index is out of range: 2, number of columns: 1.
<2|false|4.0.0> kodo.jdo.DataStoreException: The column index is out of
range: 2, number of columns: 1.
at
kodo.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4092)
at kodo.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:82)
at kodo.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:66)
at kodo.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:46)
at
kodo.jdbc.kernel.SelectResultObjectProvider.handleCheckedException(SelectResultObjectProvider.java:176)
at
kodo.kernel.QueryImpl$PackingResultObjectProvider.handleCheckedException(QueryImpl.java:2460)
at
com.solarmetric.rop.EagerResultList.<init>(EagerResultList.java:32)
at kodo.kernel.QueryImpl.toResult(QueryImpl.java:1445)
at kodo.kernel.QueryImpl.execute(QueryImpl.java:1136)
at kodo.kernel.QueryImpl.execute(QueryImpl.java:901)
at kodo.kernel.QueryImpl.execute(QueryImpl.java:865)
at kodo.kernel.DelegatingQuery.execute(DelegatingQuery.java:787)
at kodo.jdo.QueryImpl.executeWithArray(QueryImpl.java:210)
at kodo.jdo.QueryImpl.execute(QueryImpl.java:137)
at
edu.ucsc.whisper.core.dao.JdoUserDao.findAllUsersWithFirstName(JdoUserDao.java:232)
at
edu.ucsc.whisper.core.manager.DefaultUserManager.getAllUsersWithFirstName(DefaultUserManager.java:252)
NestedThrowablesStackTrace:
org.postgresql.util.PSQLException: The column index is out of range: 2,
number of columns: 1.
at
org.postgresql.core.v3.SimpleParameterList.bind(SimpleParameterList.java:57)
at
org.postgresql.core.v3.SimpleParameterList.setLiteralParameter(SimpleParameterList.java:101)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.bindLiteral(AbstractJdbc2Statement.java:2085)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.setInt(AbstractJdbc2Statement.java:1133)
at
com.solarmetric.jdbc.DelegatingPreparedStatement.setInt(DelegatingPreparedStatement.java:390)
at
com.solarmetric.jdbc.PoolConnection$PoolPreparedStatement.setInt(PoolConnection.java:440)
at
com.solarmetric.jdbc.DelegatingPreparedStatement.setInt(DelegatingPreparedStatement.java:390)
at
com.solarmetric.jdbc.DelegatingPreparedStatement.setInt(DelegatingPreparedStatement.java:390)
at
com.solarmetric.jdbc.DelegatingPreparedStatement.setInt(DelegatingPreparedStatement.java:390)
at
com.solarmetric.jdbc.LoggingConnectionDecorator$LoggingConnection$LoggingPreparedStatement.setInt(LoggingConnectionDecorator.java:1
257)
at
com.solarmetric.jdbc.DelegatingPreparedStatement.setInt(DelegatingPreparedStatement.java:390)
at
com.solarmetric.jdbc.DelegatingPreparedStatement.setInt(DelegatingPreparedStatement.java:390)
at kodo.jdbc.sql.DBDictionary.setInt(DBDictionary.java:980)
at kodo.jdbc.sql.DBDictionary.setUnknown(DBDictionary.java:1299)
at kodo.jdbc.sql.SQLBuffer.setParameters(SQLBuffer.java:638)
at kodo.jdbc.sql.SQLBuffer.prepareStatement(SQLBuffer.java:539)
at kodo.jdbc.sql.SQLBuffer.prepareStatement(SQLBuffer.java:512)
at kodo.jdbc.sql.SelectImpl.execute(SelectImpl.java:332)
at kodo.jdbc.sql.SelectImpl.execute(SelectImpl.java:301)
at kodo.jdbc.sql.Union$UnionSelect.execute(Union.java:642)
at kodo.jdbc.sql.Union.execute(Union.java:326)
at kodo.jdbc.sql.Union.execute(Union.java:313)
at
kodo.jdbc.kernel.SelectResultObjectProvider.open(SelectResultObjectProvider.java:98)
at
kodo.kernel.QueryImpl$PackingResultObjectProvider.open(QueryImpl.java:2405)
at
com.solarmetric.rop.EagerResultList.<init>(EagerResultList.java:22)
at kodo.kernel.QueryImpl.toResult(QueryImpl.java:1445)
at kodo.kernel.QueryImpl.execute(QueryImpl.java:1136)
at kodo.kernel.QueryImpl.execute(QueryImpl.java:901)
at kodo.kernel.QueryImpl.execute(QueryImpl.java:865)
at kodo.kernel.DelegatingQuery.execute(DelegatingQuery.java:787)
at kodo.jdo.QueryImpl.executeWithArray(QueryImpl.java:210)
at kodo.jdo.QueryImpl.execute(QueryImpl.java:137)
at
edu.ucsc.whisper.core.dao.JdoUserDao.findAllUsersWithFirstName(JdoUserDao.java:232)
--- DefaultUser.java -------------------------------------------------
public class DefaultUser
implements User
/** The account username. */
private String username;
/** The account password. */
private String password;
/** A flag indicating whether or not the account is enabled. */
private boolean enabled;
/** The authorities granted to this account. */
private Set<Authority> authorities;
/** Information about the user, including their name and text that
describes them. */
private UserInfo userInfo;
/** The set of organizations where this user works. */
private Set<Organization> organizations;
--- DefaultUser.jdo --------------------------------------------------
<?xml version="1.0"?>
<!DOCTYPE jdo PUBLIC
"-//Sun Microsystems, Inc.//DTD Java Data Objects Metadata 2.0//EN"
"http://java.sun.com/dtd/jdo_2_0.dtd">
<jdo>
<package name="edu.ucsc.whisper.core">
<sequence name="user_id_seq"
factory-class="native(Sequence=user_id_seq)"/>
<class name="DefaultUser" detachable="true"
table="whisper_user" identity-type="datastore">
<datastore-identity sequence="user_id_seq" column="userId"/>
<field name="username">
<column name="username" length="80" jdbc-type="VARCHAR" />
</field>
<field name="password">
<column name="password" length="40" jdbc-type="CHAR" />
</field>
<field name="enabled">
<column name="enabled" />
</field>
<field name="userInfo" persistence-modifier="persistent"
default-fetch-group="true" dependent="true">
<extension vendor-name="jpox"
key="implementation-classes"
value="edu.ucsc.whisper.core.DefaultUserInfo" />
<extension vendor-name="kodo"
key="type"
value="edu.ucsc.whisper.core.DefaultUserInfo" />
</field>
<field name="authorities" persistence-modifier="persistent"
table="user_authorities"
default-fetch-group="true">
<collection
element-type="edu.ucsc.whisper.core.DefaultAuthority" />
<join column="userId" delete-action="cascade"/>
<element column="authorityId" delete-action="cascade"/>
</field>
<field name="organizations" persistence-modifier="persistent"
table="user_organizations" mapped-by="user"
default-fetch-group="true" dependent="true">
<collection
element-type="edu.ucsc.whisper.core.DefaultOrganization"
dependent-element="true"/>
<join column="userId"/>

</field>
</class>
</package>
</jdo>
--- DefaultUser.jdoquery ---------------------------------------------
<?xml version="1.0"?>
<!DOCTYPE jdo PUBLIC
"-//Sun Microsystems, Inc.//DTD Java Data Objects Metadata 2.0//EN"
"http://java.sun.com/dtd/jdo_2_0.dtd">
<jdo>
<package name="edu.ucsc.whisper.core">
<class name="DefaultUser">
<query name="UserByUsername"
language="javax.jdo.query.JDOQL"><![CDATA[
SELECT UNIQUE FROM edu.ucsc.whisper.core.DefaultUser
WHERE username==searchName
PARAMETERS java.lang.String searchName
]]></query>
<query name="DisabledUsers"
language="javax.jdo.query.JDOQL"><![CDATA[
SELECT FROM edu.ucsc.whisper.core.DefaultUser WHERE
enabled==false
]]></query>
<query name="EnabledUsers"
language="javax.jdo.query.JDOQL"><![CDATA[
SELECT FROM edu.ucsc.whisper.core.DefaultUser WHERE
enabled==true
]]></query>
<query name="CountUsers"
language="javax.jdo.query.JDOQL"><![CDATA[
SELECT count( this ) FROM edu.ucsc.whisper.core.DefaultUser
]]></query>
</class>
</package>
</jdo>

I'm sorry, I have no idea. I suggest sending a test case that
reproduces the problem to support.

X failing after 2 or 3 hours of using

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