Re: [ubuntu-uk] Loss of scanner .....

[John Stevenson]

On 20 July 2010 20:44, Barry Drake  wrote:

> Slightly weird behaviour.  I haven't used my scanner - Brother DCP 135C
> combined printer scanner - for a few weeks.  Yesterday, both my netbook
> and my PC refused to find it.  I had to re-install both parts of the
> required proprietary driver (from Brother) to get it to work again.
> This was certainly due to one of at least three updates that I carried
> out during that time.  Only a slight inconvenience, but as the scans
> were urgent, I had to resort to Windows to do them, and that really
> rankled!!!
>
> Any suggestions for avoiding this on the next round?
>
> Hello Barry,
I believe there was a kernel update in the last week or three, perhaps that
was the source of your problem.  When doing an upgrade, have a quick scan
through the list of updates and if there is a lernel-image listed, then get
ready to reinstall your proprietary driver (you could write a bash if the
driver install is not already scripted).

If it was not the kernel, then it could have been cups.  See if you can
figure out where the proprietary driver is being installed and this may give
you a better idea of which Ubuntu package change could be affecting the
driver install

Thank you.
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Re: [ubuntu-uk] Shutdown/Restart bug on 10.04

[Daniel Case]

Thats...strange, have you filed a bug report?

Dan

On 20 July 2010 19:10, Gordon Burgess-Parker  wrote:

> On 20/07/10 18:24, Gordon Burgess-Parker wrote:
> > There seems to be a bug in 10.04 where the shutdown and Restart
> > functions just don't work at all.
> > Any one had any luck with sorting this?
> >
> >
>
> Solved! Would you beleive there's a problem with the Open Office
> quickstarter? Disable that and the shutdown/restart functions suddenly
> return...
>
>
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[ubuntu-uk] Loss of scanner .....

[Barry Drake]

Slightly weird behaviour.  I haven't used my scanner - Brother DCP 135C
combined printer scanner - for a few weeks.  Yesterday, both my netbook
and my PC refused to find it.  I had to re-install both parts of the
required proprietary driver (from Brother) to get it to work again.
This was certainly due to one of at least three updates that I carried
out during that time.  Only a slight inconvenience, but as the scans
were urgent, I had to resort to Windows to do them, and that really
rankled!!!

Any suggestions for avoiding this on the next round?
-- 
Sent from my Dell Netbook using Ubuntu - the window-free environment
that gives me real fresh air.


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Re: [ubuntu-uk] Shutdown/Restart bug on 10.04

[Gordon Burgess-Parker]

On 20/07/10 18:24, Gordon Burgess-Parker wrote:
> There seems to be a bug in 10.04 where the shutdown and Restart
> functions just don't work at all.
> Any one had any luck with sorting this?
>
>

Solved! Would you beleive there's a problem with the Open Office 
quickstarter? Disable that and the shutdown/restart functions suddenly 
return...


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[ubuntu-uk] Meeting tomorrow night

[Alan Bell]

Just a reminder, our next meeting is tomorrow night at 9PM in the
#ubuntu-uk-meeting channel on freenode. You can join the meeting with a
web browser at http://webchat.freenode.net/?channels=ubuntu-uk-meeting
or use an IRC client like xchat or irssi. All are welcome at the meeting.

The agenda for the meeting is here:
https://wiki.ubuntu.com/UKTeamMeetingAgenda
Please feel free to edit the page and add more stuff if you want

The minutes of the last meeting are here
https://wiki.ubuntu.com/UKTeam/LastMeeting if you had any actions, now
would be a good time to get them done if you haven't already.

Alan.
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[ubuntu-uk] Shutdown/Restart bug on 10.04

[Gordon Burgess-Parker]

There seems to be a bug in 10.04 where the shutdown and Restart 
functions just don't work at all.
Any one had any luck with sorting this?


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Re: [ubuntu-uk] Non-technical events?

[pmgazz]

Sounds like I ought to revisit Debian installation . . .

On 20/07/10 16:20, Paul Morgan-Roach wrote:

On Tue, Jul 20, 2010 at 4:05 PM, Liam Proven  wrote:

   

Real Debian is getting pretty good these days - it's smaller and
faster than Ubuntu and the default Gnome desktop is much the same. It
was just that getting firmware for my wifi card and so on was a bit of
a pain. It is vastly easier to get up and running than it used to be -
ironically, one of the main reasons Ubuntu itself was created. Debian
is catching up and itself is now a sort of quite viable "Ubuntu
Light".

 

Indeed - I found this recently and started a thread about it.  The
proprietary driver issue is a bit of a pig, but I have full respect for
where the Debian project is coming from.  I'm running a few Debian servers
around the place now and loving it, and the desktop I have runs like a charm
- as I have suggested previously it seems surprisingly fast from a cold
start compared to my last Ubuntu install.

My first thoughts when installing for the first time in a while was "When
did Debian get a graphical installer??"

   
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Re: [ubuntu-uk] Non-technical events?

[Paul Morgan-Roach]

On Tue, Jul 20, 2010 at 4:05 PM, Liam Proven  wrote:

> Real Debian is getting pretty good these days - it's smaller and
> faster than Ubuntu and the default Gnome desktop is much the same. It
> was just that getting firmware for my wifi card and so on was a bit of
> a pain. It is vastly easier to get up and running than it used to be -
> ironically, one of the main reasons Ubuntu itself was created. Debian
> is catching up and itself is now a sort of quite viable "Ubuntu
> Light".
>

Indeed - I found this recently and started a thread about it.  The
proprietary driver issue is a bit of a pig, but I have full respect for
where the Debian project is coming from.  I'm running a few Debian servers
around the place now and loving it, and the desktop I have runs like a charm
- as I have suggested previously it seems surprisingly fast from a cold
start compared to my last Ubuntu install.

My first thoughts when installing for the first time in a while was "When
did Debian get a graphical installer??"
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Re: [ubuntu-uk] Non-technical events?

[Liam Proven]

On 20 July 2010 15:25, Paul Morgan-Roach  wrote:
> On Tue, Jul 20, 2010 at 2:51 PM, Liam Proven  wrote:
>>
>> Me, I'm watching Crunchbang with interest, but it's not a beginners'
>> distro.
>
> Crunchbang is awesome - I set it up for my wife who was complaining about
> performance on her EEEPC 701, and have since run it on other hardware that
> has less than impressive resources, but where a desktop environment is
> needed.
>
> To be fair, once i'd actually set it up so the menu's made sense for her and
> she had all the apps she needed she was fine and hasn't asked for any
> support on it since.  She's not the kind of user who makes changes to her
> machine every day, but she does use email and the web heavily, work in
> spreadsheets and word processor documents and she's really happy with it.
>
> Interested to try the new version with the Debian base when it gets into
> Beta...

Indeed so. I have tried the alpha in a VM and it looks good - even
sleeker and skinnier than before.

Real Debian is getting pretty good these days - it's smaller and
faster than Ubuntu and the default Gnome desktop is much the same. It
was just that getting firmware for my wifi card and so on was a bit of
a pain. It is vastly easier to get up and running than it used to be -
ironically, one of the main reasons Ubuntu itself was created. Debian
is catching up and itself is now a sort of quite viable "Ubuntu
Light".

If Crunchbang can prune Debian down and make it easier to get the few
proprietary bits one needs working, it will be quite an interesting
solution...

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Re: [ubuntu-uk] Lite Distro was Non-technical events?

[azmodie]

On 20 July 2010 15:25, Paul Morgan-Roach  wrote:

> On Tue, Jul 20, 2010 at 2:51 PM, Liam Proven  wrote:
>
>>
>> Me, I'm watching Crunchbang with interest, but it's not a beginners'
>> distro.
>>
>
> Crunchbang is awesome - I set it up for my wife who was complaining about
> performance on her EEEPC 701, and have since run it on other hardware that
> has less than impressive resources, but where a desktop environment is
> needed.
>
> To be fair, once i'd actually set it up so the menu's made sense for her
> and she had all the apps she needed she was fine and hasn't asked for any
> support on it since.  She's not the kind of user who makes changes to her
> machine every day, but she does use email and the web heavily, work in
> spreadsheets and word processor documents and she's really happy with it.
>
> Interested to try the new version with the Debian base when it gets into
> Beta...
>
> P
>
>
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>
> I have use crunchbang statler alpha on my samsung nc10.  have to say i
haven't had any issues.
although i love openbox. the xfce mod looks exactly the same as the openbox
setup. with added advantage of auto-generating menus.

azmodie
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Re: [ubuntu-uk] Non-technical events?

[pmgazz]

Thanks - I'll have a look at Lubuntu when I get a minute :)  Crunchbag 
looks interesting but interface needs to be for beginners when dealing 
with non-techies . . .


On 20/07/10 14:51, Liam Proven wrote:


That is what Ubuntu Lite tried to be - later rebadged U-Lite. We never
got the critical mass together, though. :¬(
http://u-lite.org/

Now the mantle seems to be passing on to Lubuntu.

Me, I'm watching Crunchbang with interest, but it's not a beginners' distro.



   
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Re: [ubuntu-uk] Non-technical events?

[Paul Morgan-Roach]

On Tue, Jul 20, 2010 at 2:51 PM, Liam Proven  wrote:

>
> Me, I'm watching Crunchbang with interest, but it's not a beginners'
> distro.
>

Crunchbang is awesome - I set it up for my wife who was complaining about
performance on her EEEPC 701, and have since run it on other hardware that
has less than impressive resources, but where a desktop environment is
needed.

To be fair, once i'd actually set it up so the menu's made sense for her and
she had all the apps she needed she was fine and hasn't asked for any
support on it since.  She's not the kind of user who makes changes to her
machine every day, but she does use email and the web heavily, work in
spreadsheets and word processor documents and she's really happy with it.

Interested to try the new version with the Debian base when it gets into
Beta...

P
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Re: [ubuntu-uk] Non-technical events?

[Liam Proven]

On 20 July 2010 11:54, pmgazz  wrote:
> Also takes a lot of fiddling about to set up a custom Debian desktop and I
> don't have time to make a habit of it. It's a while since I reviewed all the
> packaged lightweight desktops and there's been a lot of development since
> then, I'll have a look at Peppermint. There was an Ubuntu-lite version which
> seems to have died - I also rather liked the Fluxbuntu effort - but that
> also seems to have died.
>
> It is a bit of a gap with Ubuntu - it'd be great if there was a version as
> lightweight as Fluxbuntu was and yet useable for web, Abiword etc for
> non-techies.

That is what Ubuntu Lite tried to be - later rebadged U-Lite. We never
got the critical mass together, though. :¬(
http://u-lite.org/

Now the mantle seems to be passing on to Lubuntu.

Me, I'm watching Crunchbang with interest, but it's not a beginners' distro.



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Re: [ubuntu-uk] Xorg problem using too much CPU

[Glen Mehn]

 If you logout and log back in, your X server should restart (you'll 
drop back to the Display Manager).


Best,

Glen

On 20/07/2010 09:32, ByteSoup wrote:

Hi All,

I posted this question on launchpad, I did get a post regarding a 
bleeding edge driver, but this is my work machine and I didnt really 
want to try that unless as a last resort. What I wanted to know is how 
to effectively reset the xserver and restart it without having to 
resort to reboot.


If anyone could take a peek at my question and offer any advice that 
would be much appreciated


https://answers.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+question/116345

TIA -Mark



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Re: [ubuntu-uk] Xorg problem using too much CPU

[Simon Greenwood]

On 20 July 2010 12:37, ByteSoup  wrote:

> On 20/07/10 11:17, Simon Greenwood wrote:
> >
> > No, that's definitely an Intel integrated graphics controller so I
> > suppose that removes Nvidia from the equation.
> >
> > s/
>
> I think I narrowed it down to whats causing it. At the advice of another
> poster on launchpad, I created another user account and logged into that
> account. I logged onto my work VPN, and then visited the site which
> caused the problem it runs some java app but i think it also uses flash,
> or at least it looks "flashy" and then noticed the cpu go up and then
> down again, everything seemed fine.
>
> I then added "noscript" into firefox and tried it again and the problem
> was reproduced. So I believe its browser based java and possibly flash.
> But no amount of xserver restarts seems to solve the problem. As before
> rebooting is quicker than trying to resolve it. I really wish I knew a
> way of tracking the rogue process down and killing it off. Of course
> avoiding the site in the first place is what I do, but there is a chance
> I could stumble onto a site that causes the same symptoms.
>
>
Again, that matches my experience. I found that Chrome is less, shall we
say, explosive, than Firefox but it seems to sit with the interface with
Flash and possibly Xorg - if you close Firefox the CPU will settle down but
it takes a couple of minutes, which suggests to me that it's external to the
browser.

s/


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Re: [ubuntu-uk] Xorg problem using too much CPU

[ByteSoup]

On 20/07/10 11:17, Simon Greenwood wrote:
>
> No, that's definitely an Intel integrated graphics controller so I 
> suppose that removes Nvidia from the equation.
>
> s/

I think I narrowed it down to whats causing it. At the advice of another 
poster on launchpad, I created another user account and logged into that 
account. I logged onto my work VPN, and then visited the site which 
caused the problem it runs some java app but i think it also uses flash, 
or at least it looks "flashy" and then noticed the cpu go up and then 
down again, everything seemed fine.

I then added "noscript" into firefox and tried it again and the problem 
was reproduced. So I believe its browser based java and possibly flash. 
But no amount of xserver restarts seems to solve the problem. As before 
rebooting is quicker than trying to resolve it. I really wish I knew a 
way of tracking the rogue process down and killing it off. Of course 
avoiding the site in the first place is what I do, but there is a chance 
I could stumble onto a site that causes the same symptoms.

-Mark

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Re: [ubuntu-uk] Trade supplier of Linksys WRT54G+DD-WRT Routers

[Matthew Macdonald-Wallace]

Hi Tim,

I've enquired on the Bristol Wireless list to see if they have anything.

I'll keep you updated if they come back to me.

Kind regards,

Matt

Quoting Tim Dobson :

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hey,
>
> I know this is pushing it a bit but does anyone have any trade suppliers
> of WRT54G routers running DD-WRT.
>
> Ideally, I'd prefer Linksys WRT54G-TM's with UK power supplies but
> really any of the WRT54G range with DD-WRT would do.
>
> Does anyone have any ideas?
>
> Cheers,
>
> Tim
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>
> --
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>



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Re: [ubuntu-uk] Non-technical events?

[pmgazz]

Also takes a lot of fiddling about to set up a custom Debian desktop and 
I don't have time to make a habit of it. It's a while since I reviewed 
all the packaged lightweight desktops and there's been a lot of 
development since then, I'll have a look at Peppermint. There was an 
Ubuntu-lite version which seems to have died - I also rather liked the 
Fluxbuntu effort - but that also seems to have died.


It is a bit of a gap with Ubuntu - it'd be great if there was a version 
as lightweight as Fluxbuntu was and yet useable for web, Abiword etc for 
non-techies.


Paula


I tried a custom Debian desktop once, for the folks who I gave Xubuntu
to (on the P3 800's) and somehow they managed to break it within a day.  :-)

Next time I do anything on any older hardware I'm going to give
Peppermint Linux a try, it looks to be better matched to old hardware as
it runs LXDE.

Rob

   


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[ubuntu-uk] Trade supplier of Linksys WRT54G+DD-WRT Routers

[Tim Dobson]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hey,

I know this is pushing it a bit but does anyone have any trade suppliers
of WRT54G routers running DD-WRT.

Ideally, I'd prefer Linksys WRT54G-TM's with UK power supplies but
really any of the WRT54G range with DD-WRT would do.

Does anyone have any ideas?

Cheers,

Tim
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Version: GnuPG v1.4.10 (GNU/Linux)

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=0hFx
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Re: [ubuntu-uk] Lost internet usage in Ubuntu 9.04

[Neil Greenwood]

On 20 July 2010 10:19, Simon Greenwood  wrote:
>
>
> On 20 July 2010 10:07, David King  wrote:
>>
>>
>> Colin Law wrote:
>> > Does it work for another user on the PC?  If you have not other user
>> > add one using System, Administration, Users and Groups.  A second user
>> > is often useful for testing.
>> >
>> > Colin
>> >
>> >
>> >
>> Although my Ubuntu 9.04 has been working okay with accessing the
>> Internet recently, this morning when I booted into it, again I had no
>> internet access. I could not access the router, although when I looked
>> at the Network Connection, it showed an IP address as well as that of
>> the router, suggesting that there was no problem connecting to the
>> router or for the router to connect to the Internet.
>>
>> So I set up a new account on Ubuntu 9.04, and logged into that. Straight
>> away that user had internet access with nothing blocked, and I could
>> access the router and webpages okay in Firefox.
>>
>> So I then switched user back to my own normal user account and then had
>> access to the Internet okay.
>>
>> So what else should I be looking for to diagnose why my main user
>> account cannot access the Internet sometimes?
>>
>>
>
> The thing that immediately came to mind when you first posted this was that
> something might be setting the HTTP_PROXY environment variable. Some
> applications that access the Internet will acknowledge this and others
> don't, and if it's set to a non-existent or unreachable address, some
> connectivity will fail and some will work. I found, for example, for reasons
> too complex to get into now, that Google Earth will use it and that Firefox
> uses its own setting, so if it happens again, open a terminal and type 'env
> | grep HTTP_PROXY' and see if there's anything set for it.
> Simon

The environment variable is normally specified all in lower case, i.e.
http_proxy. Other than that, try Simon's suggestion.

Cofion,
Neil.

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Re: [ubuntu-uk] Xorg problem using too much CPU

[Simon Greenwood]

On 20 July 2010 11:12, ByteSoup  wrote:

>  On 20/07/10 10:57, Simon Greenwood wrote:
>
>
>
> On 20 July 2010 10:43, ByteSoup  wrote:
>
>> On 20/07/10 09:47, Simon Greenwood wrote:
>> >
>> > I have a similar problem with 64-bit (both 9.10 and 10.04) on a Dell
>> > XPS M1330. Flash and java applications, primarily in web browsers,
>> > cause the CPU usage to spin up to 100%. It even started happening with
>> > Thunderbird 3. My solution was to have Flash disabled by default to
>> > stop it happening, but that's difficult if you're developing video apps.
>> >
>> > It's possible to recover by logging out of the desktop and restarting
>> > Xorg from a terminal, and that's really as far as I got with
>> > diagnosing the problem, that it is an issue with Xorg and possibly
>> > with the Nvidia drivers. However, it did really render the system
>> > unusable so I've had to go back to my Mac to get work done. I haven't
>> > raised a bug for it because, as you've found, it's very difficult to
>> > get any useful diagnosis.
>> >
>> > Simon
>>
>>  It seems like me and Simon are in the same boat. I need to run up a
>> 32bit system on the same machine using an external HDD  to compare. I do
>> think its something to do with flash, so although its not the system as
>> such. I do think it shows up a flaw in the way it seems hard to corner
>> the problem and deal with it.
>>
>> Ive tried the CTRL+ALT+BACKSPACE option as suggested by Alan and the
>> "sudo restart gdm" and some other combinations. I think they all
>> effectively restart the desktop. The problem is they dont seem to
>> release the CPU, the Xorg process seems to be very busy doing something
>> so my conclusion is that there is another process running thats causing
>> this and its grabbing hold of the Xorg when it comes up again.
>>
>> Interestingly enough even when I drop out to a tty session (CTRL+ALT+F1)
>> "top" shows load averages of 1.x and it doesnt really settle down to
>> below 0.5 even when nothing is showing running apart from  top itself. I
>> know networking is probably still running though, but I cant make sense
>> of this. I mean at the moment im using the desktop, typing this email
>> with Thunderbird open also I have firefox open with a number of tabs and
>> my load averages are showing 0.54 0.41 0.26
>>
>> It seems the problem does go away if I wait 10-15 mins before restarting
>> gdm, but its far quicker to reboot. So is there a way to find out the
>> process tree of whats using Xorg if there is such a thing?
>>
>>
>  That's exactly what I see. Does your machine have an Nvidia graphics card
> and do you use the proprietary drivers? If that's the case it is somewhere
> between the graphics drivers and Flash and how they're used with Xorg.
>
>  s/
>
>
> Hi Simon, sorry to sound a  bit dumb here, but im not sure if I have
> Nvidia, my "lshw" shows "intel" for display, could this sitll be nvidia? Its
> a Dell E6400
>
> sudo lshw -C display
>
>   *-display:0
>description: VGA compatible controller
>product: Mobile 4 Series Chipset Integrated Graphics Controller
>vendor: Intel Corporation
>physical id: 2
>bus info: p...@:00:02.0
>version: 07
>width: 64 bits
>clock: 33MHz
>capabilities: msi pm bus_master cap_list rom
>configuration: driver=i915 latency=0
>resources: irq:30 memory:f6c0-f6ff
> memory:e000-efff(prefetchable) ioport:ef98(size=8)
>   *-display:1 UNCLAIMED
>description: Display controller
>product: Mobile 4 Series Chipset Integrated Graphics Controller
>vendor: Intel Corporation
>physical id: 2.1
>bus info: p...@:00:02.1
>version: 07
>width: 64 bits
>clock: 33MHz
>capabilities: pm bus_master cap_list
>configuration: latency=0
>resources: memory:f6b0-f6bf
>

No, that's definitely an Intel integrated graphics controller so I suppose
that removes Nvidia from the equation.

s/

>
>


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Re: [ubuntu-uk] Xorg problem using too much CPU

[ByteSoup]

On 20/07/10 10:57, Simon Greenwood wrote:



On 20 July 2010 10:43, ByteSoup > wrote:


On 20/07/10 09:47, Simon Greenwood wrote:
>
> I have a similar problem with 64-bit (both 9.10 and 10.04) on a Dell
> XPS M1330. Flash and java applications, primarily in web browsers,
> cause the CPU usage to spin up to 100%. It even started
happening with
> Thunderbird 3. My solution was to have Flash disabled by default to
> stop it happening, but that's difficult if you're developing
video apps.
>
> It's possible to recover by logging out of the desktop and
restarting
> Xorg from a terminal, and that's really as far as I got with
> diagnosing the problem, that it is an issue with Xorg and possibly
> with the Nvidia drivers. However, it did really render the system
> unusable so I've had to go back to my Mac to get work done. I
haven't
> raised a bug for it because, as you've found, it's very difficult to
> get any useful diagnosis.
>
> Simon

It seems like me and Simon are in the same boat. I need to run up a
32bit system on the same machine using an external HDD  to
compare. I do
think its something to do with flash, so although its not the
system as
such. I do think it shows up a flaw in the way it seems hard to corner
the problem and deal with it.

Ive tried the CTRL+ALT+BACKSPACE option as suggested by Alan and the
"sudo restart gdm" and some other combinations. I think they all
effectively restart the desktop. The problem is they dont seem to
release the CPU, the Xorg process seems to be very busy doing
something
so my conclusion is that there is another process running thats
causing
this and its grabbing hold of the Xorg when it comes up again.

Interestingly enough even when I drop out to a tty session
(CTRL+ALT+F1)
"top" shows load averages of 1.x and it doesnt really settle down to
below 0.5 even when nothing is showing running apart from  top
itself. I
know networking is probably still running though, but I cant make
sense
of this. I mean at the moment im using the desktop, typing this email
with Thunderbird open also I have firefox open with a number of
tabs and
my load averages are showing 0.54 0.41 0.26

It seems the problem does go away if I wait 10-15 mins before
restarting
gdm, but its far quicker to reboot. So is there a way to find out the
process tree of whats using Xorg if there is such a thing?


That's exactly what I see. Does your machine have an Nvidia graphics 
card and do you use the proprietary drivers? If that's the case it is 
somewhere between the graphics drivers and Flash and how they're used 
with Xorg.


s/


Hi Simon, sorry to sound a  bit dumb here, but im not sure if I have 
Nvidia, my "lshw" shows "intel" for display, could this sitll be nvidia? 
Its a Dell E6400


sudo lshw -C display

  *-display:0
   description: VGA compatible controller
   product: Mobile 4 Series Chipset Integrated Graphics Controller
   vendor: Intel Corporation
   physical id: 2
   bus info: p...@:00:02.0
   version: 07
   width: 64 bits
   clock: 33MHz
capabilities: msi pm bus_master cap_list rom
configuration: driver=i915 latency=0
   resources: irq:30 memory:f6c0-f6ff 
memory:e000-efff(prefetchable) ioport:ef98(size=8)

  *-display:1 UNCLAIMED
   description: Display controller
   product: Mobile 4 Series Chipset Integrated Graphics Controller
   vendor: Intel Corporation
   physical id: 2.1
   bus info: p...@:00:02.1
   version: 07
   width: 64 bits
   clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
   resources: memory:f6b0-f6bf

-Mark

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Re: [ubuntu-uk] Xorg problem using too much CPU

[Simon Greenwood]

On 20 July 2010 10:43, ByteSoup  wrote:

> On 20/07/10 09:47, Simon Greenwood wrote:
> >
> > I have a similar problem with 64-bit (both 9.10 and 10.04) on a Dell
> > XPS M1330. Flash and java applications, primarily in web browsers,
> > cause the CPU usage to spin up to 100%. It even started happening with
> > Thunderbird 3. My solution was to have Flash disabled by default to
> > stop it happening, but that's difficult if you're developing video apps.
> >
> > It's possible to recover by logging out of the desktop and restarting
> > Xorg from a terminal, and that's really as far as I got with
> > diagnosing the problem, that it is an issue with Xorg and possibly
> > with the Nvidia drivers. However, it did really render the system
> > unusable so I've had to go back to my Mac to get work done. I haven't
> > raised a bug for it because, as you've found, it's very difficult to
> > get any useful diagnosis.
> >
> > Simon
>
> It seems like me and Simon are in the same boat. I need to run up a
> 32bit system on the same machine using an external HDD  to compare. I do
> think its something to do with flash, so although its not the system as
> such. I do think it shows up a flaw in the way it seems hard to corner
> the problem and deal with it.
>
> Ive tried the CTRL+ALT+BACKSPACE option as suggested by Alan and the
> "sudo restart gdm" and some other combinations. I think they all
> effectively restart the desktop. The problem is they dont seem to
> release the CPU, the Xorg process seems to be very busy doing something
> so my conclusion is that there is another process running thats causing
> this and its grabbing hold of the Xorg when it comes up again.
>
> Interestingly enough even when I drop out to a tty session (CTRL+ALT+F1)
> "top" shows load averages of 1.x and it doesnt really settle down to
> below 0.5 even when nothing is showing running apart from  top itself. I
> know networking is probably still running though, but I cant make sense
> of this. I mean at the moment im using the desktop, typing this email
> with Thunderbird open also I have firefox open with a number of tabs and
> my load averages are showing 0.54 0.41 0.26
>
> It seems the problem does go away if I wait 10-15 mins before restarting
> gdm, but its far quicker to reboot. So is there a way to find out the
> process tree of whats using Xorg if there is such a thing?
>
>
That's exactly what I see. Does your machine have an Nvidia graphics card
and do you use the proprietary drivers? If that's the case it is somewhere
between the graphics drivers and Flash and how they're used with Xorg.

s/


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Re: [ubuntu-uk] Xorg problem using too much CPU

[ByteSoup]

On 20/07/10 09:47, Simon Greenwood wrote:
>
> I have a similar problem with 64-bit (both 9.10 and 10.04) on a Dell 
> XPS M1330. Flash and java applications, primarily in web browsers, 
> cause the CPU usage to spin up to 100%. It even started happening with 
> Thunderbird 3. My solution was to have Flash disabled by default to 
> stop it happening, but that's difficult if you're developing video apps.
>
> It's possible to recover by logging out of the desktop and restarting 
> Xorg from a terminal, and that's really as far as I got with 
> diagnosing the problem, that it is an issue with Xorg and possibly 
> with the Nvidia drivers. However, it did really render the system 
> unusable so I've had to go back to my Mac to get work done. I haven't 
> raised a bug for it because, as you've found, it's very difficult to 
> get any useful diagnosis.
>
> Simon

It seems like me and Simon are in the same boat. I need to run up a 
32bit system on the same machine using an external HDD  to compare. I do 
think its something to do with flash, so although its not the system as 
such. I do think it shows up a flaw in the way it seems hard to corner 
the problem and deal with it.

Ive tried the CTRL+ALT+BACKSPACE option as suggested by Alan and the 
"sudo restart gdm" and some other combinations. I think they all 
effectively restart the desktop. The problem is they dont seem to 
release the CPU, the Xorg process seems to be very busy doing something 
so my conclusion is that there is another process running thats causing 
this and its grabbing hold of the Xorg when it comes up again.

Interestingly enough even when I drop out to a tty session (CTRL+ALT+F1) 
"top" shows load averages of 1.x and it doesnt really settle down to 
below 0.5 even when nothing is showing running apart from  top itself. I 
know networking is probably still running though, but I cant make sense 
of this. I mean at the moment im using the desktop, typing this email 
with Thunderbird open also I have firefox open with a number of tabs and 
my load averages are showing 0.54 0.41 0.26

It seems the problem does go away if I wait 10-15 mins before restarting 
gdm, but its far quicker to reboot. So is there a way to find out the 
process tree of whats using Xorg if there is such a thing?

Thanks

Mark

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Re: [ubuntu-uk] Lost internet usage in Ubuntu 9.04

[Simon Greenwood]

On 20 July 2010 10:07, David King  wrote:

>
>
> Colin Law wrote:
> > Does it work for another user on the PC?  If you have not other user
> > add one using System, Administration, Users and Groups.  A second user
> > is often useful for testing.
> >
> > Colin
> >
> >
> >
> Although my Ubuntu 9.04 has been working okay with accessing the
> Internet recently, this morning when I booted into it, again I had no
> internet access. I could not access the router, although when I looked
> at the Network Connection, it showed an IP address as well as that of
> the router, suggesting that there was no problem connecting to the
> router or for the router to connect to the Internet.
>
> So I set up a new account on Ubuntu 9.04, and logged into that. Straight
> away that user had internet access with nothing blocked, and I could
> access the router and webpages okay in Firefox.
>
> So I then switched user back to my own normal user account and then had
> access to the Internet okay.
>
> So what else should I be looking for to diagnose why my main user
> account cannot access the Internet sometimes?
>
>
>
The thing that immediately came to mind when you first posted this was that
something might be setting the HTTP_PROXY environment variable. Some
applications that access the Internet will acknowledge this and others
don't, and if it's set to a non-existent or unreachable address, some
connectivity will fail and some will work. I found, for example, for reasons
too complex to get into now, that Google Earth will use it and that Firefox
uses its own setting, so if it happens again, open a terminal and type 'env
| grep HTTP_PROXY' and see if there's anything set for it.

Simon

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Re: [ubuntu-uk] Lost internet usage in Ubuntu 9.04

[David King]

Colin Law wrote:
> Does it work for another user on the PC?  If you have not other user
> add one using System, Administration, Users and Groups.  A second user
> is often useful for testing.
>
> Colin
>
>   
>
Although my Ubuntu 9.04 has been working okay with accessing the 
Internet recently, this morning when I booted into it, again I had no 
internet access. I could not access the router, although when I looked 
at the Network Connection, it showed an IP address as well as that of 
the router, suggesting that there was no problem connecting to the 
router or for the router to connect to the Internet.

So I set up a new account on Ubuntu 9.04, and logged into that. Straight 
away that user had internet access with nothing blocked, and I could 
access the router and webpages okay in Firefox.

So I then switched user back to my own normal user account and then had 
access to the Internet okay.

So what else should I be looking for to diagnose why my main user 
account cannot access the Internet sometimes?


David King




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Re: [ubuntu-uk] Xorg problem using too much CPU

[Tony Arnold]

Mark,

On 20/07/10 09:32, ByteSoup wrote:

> I posted this question on launchpad, I did get a post regarding a
> bleeding edge driver, but this is my work machine and I didnt really
> want to try that unless as a last resort. What I wanted to know is how
> to effectively reset the xserver and restart it without having to resort
> to reboot.

In 10.04 you can do:

sudo restart gdm

Previosu version you can do:

sudo /etc/init.d/gdm restart

Regards,
Tony.
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Re: [ubuntu-uk] Xorg problem using too much CPU

[Simon Greenwood]

On 20 July 2010 09:32, ByteSoup  wrote:

>  Hi All,
>
> I posted this question on launchpad, I did get a post regarding a bleeding
> edge driver, but this is my work machine and I didnt really want to try that
> unless as a last resort. What I wanted to know is how to effectively reset
> the xserver and restart it without having to resort to reboot.
>
> If anyone could take a peek at my question and offer any advice that would
> be much appreciated
>
>
> https://answers.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+question/116345
>
>
I have a similar problem with 64-bit (both 9.10 and 10.04) on a Dell XPS
M1330. Flash and java applications, primarily in web browsers, cause the CPU
usage to spin up to 100%. It even started happening with Thunderbird 3. My
solution was to have Flash disabled by default to stop it happening, but
that's difficult if you're developing video apps.

It's possible to recover by logging out of the desktop and restarting Xorg
from a terminal, and that's really as far as I got with diagnosing the
problem, that it is an issue with Xorg and possibly with the Nvidia drivers.
However, it did really render the system unusable so I've had to go back to
my Mac to get work done. I haven't raised a bug for it because, as you've
found, it's very difficult to get any useful diagnosis.

Simon



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Re: [ubuntu-uk] Xorg problem using too much CPU

[Alan Lord (News)]

On 20/07/10 09:32, ByteSoup wrote:
> Hi All,
>
> I posted this question on launchpad, I did get a post regarding a
> bleeding edge driver, but this is my work machine and I didnt really
> want to try that unless as a last resort. What I wanted to know is how
> to effectively reset the xserver and restart it without having to resort
> to reboot.

The "usual" way to restart X is to use CTL+ALT+BACKSPACE but by default 
that is disabled to prevent accidents.

You can easily turn it on though:

* Go to System->Preferences->Keyboard menu.

* Select the Layouts Tab and click on the Layout Options button.

* Select "Key sequence to kill the X server" and enable "Control + Alt + 
Backspace".

HTH

Al


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[ubuntu-uk] Xorg problem using too much CPU

[ByteSoup]

Hi All,

I posted this question on launchpad, I did get a post regarding a 
bleeding edge driver, but this is my work machine and I didnt really 
want to try that unless as a last resort. What I wanted to know is how 
to effectively reset the xserver and restart it without having to resort 
to reboot.


If anyone could take a peek at my question and offer any advice that 
would be much appreciated


https://answers.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+question/116345

TIA -Mark
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