Weird behaviour - resize of konsoles has 2s delay

On Sun 2009-08-23, George Kiagiadakis wrote:
> 2009/8/23 jedd <jedd.RemoveThis@progsoc.org>:
> > With konsoles, typically full-screen, or at least full-vertical
> > size, click-and-hold the top or side edge and start to re-size.
> > For me I'm getting a 2s delay - during which X basically freezes.
...
> You are probably using quite old nvidia drivers. This is a known
> nvidia bug, but it is supposed to be fixed in recent versions of the
> driver. Try upgrading it.

George - thanks for your suggestion.

Since April (4.2.2 into unstable) I've been tracking the nVidia
drivers fairly regularly, updating within a week of new ones
being released. I see that .31 was replaced by .36 a couple
of days ago, so I've grabbed and installed that version.

Surprisingly, there's nothing in their changelog that looks
related.

After using this new driver for a few hours, I feel that it
might have helped (it's a tricky call) but it certainly hasn't
solved the problem unfortunately.

Jedd.


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Alle lunedė 24 agosto 2009, jedd ha scritto:
> On Sun 2009-08-23, George Kiagiadakis wrote:
> > 2009/8/23 jedd <jedd.RemoveThis@progsoc.org>:
> > > With konsoles, typically full-screen, or at least full-vertical
> > > size, click-and-hold the top or side edge and start to re-size.
> > > For me I'm getting a 2s delay - during which X basically freezes.
>
> ...
>
> > You are probably using quite old nvidia drivers. This is a known
> > nvidia bug, but it is supposed to be fixed in recent versions of the
> > driver. Try upgrading it.
>
> George - thanks for your suggestion.
>
> Since April (4.2.2 into unstable) I've been tracking the nVidia
> drivers fairly regularly, updating within a week of new ones
> being released. I see that .31 was replaced by .36 a couple
> of days ago, so I've grabbed and installed that version.
>
> Surprisingly, there's nothing in their changelog that looks
> related.
>
> After using this new driver for a few hours, I feel that it
> might have helped (it's a tricky call) but it certainly hasn't
> solved the problem unfortunately.
>
> Jedd.
Hi Jedd,

There are options in the nvidia driver that must be enabled/disabled to solve
this problem. First you should check if you have a config that is conflicting
with the default nvidia setup. The latest releases of the driver are configured
to have the best performances by default with KDE4. Give a look to xorg.conf
xinitrc in /etc and your home folder. Try to use nvidia-settings after as
suggested here:
http://www.nvnews.net/vbulletin/showthread.php?t=118110 .
Anyhow, this is not a KDE4 bug.

Device section in my xorg.conf:
Section "Device"
Identifier "nVidia Corporation GeForce 8600M GS"
Driver "nvidia"
Option "DynamicTwinView" "0"
Option "AddARGBVisuals" "True"
Option "AddARGBGLXVisuals" "True"
Option "Coolbits" "False"
Option "BackingStore" "True"
Option "OnDemandVBlankInterrupts" "True"
EndSection

Read what every option does to your X.


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Hi Valerio,

Thanks for your suggestion, and your xorg device section.

I copied that into my xorg, replacing my existing sections for
my two 8600's.

It just took 8 seconds to resize an empty (apart from a prompt)
konsole that occupied a third of the screen.

That is, I click and hold the top edge, and move the mouse up or
down, and then wait.

8 seconds! Hot dang!

I've counted up to 11 seconds in some cases, but it usually
hovers around the 3-6 second mark.

I'm not convinced it's a KDE 4 problem, but it doesn't seem like an
X problem simply because it is affecting konsole and, seemingly,
nothing else. I think I saw a bit of tardy response from okular,
but that hasn't been repeatable. It doesn't appear to be text-
based, as this email window (kmail) can resize very quickly.
Ditto other applications I use (OOo, quanta, konq, iceweasel,
amarok) -- all of them tend to be text-heavy.

I modified my konsole settings - for several years I've used the
dark/transparent background - but I went back to something
more conservative just on the off-chance. No change.

I made the changes that thread you posted suggested - these
were nvidia-settings from a user-level account - and again, no
change.

Remember, I'm on a quad-core box, 2GB ram, very little happening
on the CPU front (trickling along at 8% on average), and one monitor.

7 seconds - consistently! - just to resize one type of application
is a particularly curious little bug.

Hence I was interested if anyone else around these parts is seeing
anything similar. It's looking like I might be on my own, though.

cheers,
Jedd.


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Alle martedė 25 agosto 2009, jedd ha scritto:
> Hi Valerio,
>
> Thanks for your suggestion, and your xorg device section.
>
> I copied that into my xorg, replacing my existing sections for
> my two 8600's.
>
> It just took 8 seconds to resize an empty (apart from a prompt)
> konsole that occupied a third of the screen.
>
> That is, I click and hold the top edge, and move the mouse up or
> down, and then wait.
>
> 8 seconds! Hot dang!
>
> I've counted up to 11 seconds in some cases, but it usually
> hovers around the 3-6 second mark.
>
> I'm not convinced it's a KDE 4 problem, but it doesn't seem like an
> X problem simply because it is affecting konsole and, seemingly,
> nothing else. I think I saw a bit of tardy response from okular,
> but that hasn't been repeatable. It doesn't appear to be text-
> based, as this email window (kmail) can resize very quickly.
> Ditto other applications I use (OOo, quanta, konq, iceweasel,
> amarok) -- all of them tend to be text-heavy.
>
> I modified my konsole settings - for several years I've used the
> dark/transparent background - but I went back to something
> more conservative just on the off-chance. No change.
>
> I made the changes that thread you posted suggested - these
> were nvidia-settings from a user-level account - and again, no
> change.
>
> Remember, I'm on a quad-core box, 2GB ram, very little happening
> on the CPU front (trickling along at 8% on average), and one monitor.
>
> 7 seconds - consistently! - just to resize one type of application
> is a particularly curious little bug.
>
> Hence I was interested if anyone else around these parts is seeing
> anything similar. It's looking like I might be on my own, though.
>
> cheers,
> Jedd.

Sorry for replying just now, I've been away. Have you the same problem on both
your PCs? Have you tried to login with a fresh account just to check that this
is not a problem related to configuration? My PC has half the power
of your and it's always smooth so your problem is really weird .
Other things I suggest to check are:
Compositing type: OpenGL
Mark Enable Direct Rendering
Unmark Use Vsync
OpenGL mode Texture from pixmaps
Let me know your progresses
Bye


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Valerio Passini wrote:
> Alle martedė 25 agosto 2009, jedd ha scritto:
>> Hi Valerio,
>>
>> Thanks for your suggestion, and your xorg device section.
>>
>> I copied that into my xorg, replacing my existing sections for
>> my two 8600's.
>>
>> It just took 8 seconds to resize an empty (apart from a prompt)
>> konsole that occupied a third of the screen.
>>
>> That is, I click and hold the top edge, and move the mouse up or
>> down, and then wait.
>>
>> 8 seconds! Hot dang!
>>
>> I've counted up to 11 seconds in some cases, but it usually
>> hovers around the 3-6 second mark.
>>
>> I'm not convinced it's a KDE 4 problem, but it doesn't seem like an
>> X problem simply because it is affecting konsole and, seemingly,
>> nothing else. I think I saw a bit of tardy response from okular,
>> but that hasn't been repeatable. It doesn't appear to be text-
>> based, as this email window (kmail) can resize very quickly.
>> Ditto other applications I use (OOo, quanta, konq, iceweasel,
>> amarok) -- all of them tend to be text-heavy.
>>
>> I modified my konsole settings - for several years I've used the
>> dark/transparent background - but I went back to something
>> more conservative just on the off-chance. No change.
>>
>> I made the changes that thread you posted suggested - these
>> were nvidia-settings from a user-level account - and again, no
>> change.
>>
>> Remember, I'm on a quad-core box, 2GB ram, very little happening
>> on the CPU front (trickling along at 8% on average), and one monitor.
>>
>> 7 seconds - consistently! - just to resize one type of application
>> is a particularly curious little bug.
>>
>> Hence I was interested if anyone else around these parts is seeing
>> anything similar. It's looking like I might be on my own, though.
>>
>> cheers,
>> Jedd.
>
> Sorry for replying just now, I've been away. Have you the same problem on both
> your PCs? Have you tried to login with a fresh account just to check that this
> is not a problem related to configuration? My PC has half the power
> of your and it's always smooth so your problem is really weird .
> Other things I suggest to check are:
> Compositing type: OpenGL
> Mark Enable Direct Rendering
> Unmark Use Vsync
> OpenGL mode Texture from pixmaps
> Let me know your progresses
> Bye
>
>
Hi,

I have a a 8600GT on my desktop, and I don't experience this issue at
all. But, on my laptop which is running the fglrx driver I have the
exact same behavior with konsole (around 5-9sec to resize). Both are
up-to-date Debian Squeeze kde4 (kernel 2.6.30), with the more or less
the same effects enabled, and both with bare xorg.conf, but the laptop
is running Sid xorg and fglrx.
I was thinking it was just a matter of fglrx performing poorly with my
hardware, but your message makes me think there's another problem behind
this. I will try to test the setting and isolate the difference in kde4
configuration between the two computers, but I think they are almost the
same.

Your not alone in weird-land

Tom


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