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From: Dan Espen on 29 Oct 2007 15:26

I'm not sure if I'm having Fedora, X, SDL or Nvidia
problems.

I have an FC4 install working fine.
On the same machine FC6 will go thru periods where display
updating bogs down terribly. Screen updating stops completely
for a few seconds and then continues.

I see this especially in Lincity, XKobo Deluxe but
other text only apps seem slow too.

I've got a very fast dual processor with an NVidia card
and I'm using the latest NVidia drivers. Glxgears seems OK,
not as fast as it is on FC4 but around 2K FPS.
I've gotten 3K FPS on FC4.

I've done some Google searches and can't find anyone
with similar issues. Any ideas?
From: Phil Sherman on 4 Nov 2007 13:31


Dan Espen wrote:
> I'm not sure if I'm having Fedora, X, SDL or Nvidia
> problems.
>
> I have an FC4 install working fine.
> On the same machine FC6 will go thru periods where display
> updating bogs down terribly. Screen updating stops completely
> for a few seconds and then continues.
>
> I see this especially in Lincity, XKobo Deluxe but
> other text only apps seem slow too.
>
> I've got a very fast dual processor with an NVidia card
> and I'm using the latest NVidia drivers. Glxgears seems OK,
> not as fast as it is on FC4 but around 2K FPS.
> I've gotten 3K FPS on FC4.
>
> I've done some Google searches and can't find anyone
> with similar issues. Any ideas?

No ideas but you might try running the "top" command at a high priority
and shipping its output to a disk file. Cancel it immediately after a
slowdown then look at the output and see if you can figure out what is
eating your cpu cycles. You will probably need to use an update cycle of
two seconds.

Phil Sherman
From: Dan Espen on 5 Nov 2007 09:20
Phil Sherman <psherman(a)ameritech.net> writes:

> Dan Espen wrote:
>> I'm not sure if I'm having Fedora, X, SDL or Nvidia
>> problems.
>> I have an FC4 install working fine.
>> On the same machine FC6 will go thru periods where display
>> updating bogs down terribly. Screen updating stops completely
>> for a few seconds and then continues.
>> I see this especially in Lincity, XKobo Deluxe but
>> other text only apps seem slow too.
>> I've got a very fast dual processor with an NVidia card
>> and I'm using the latest NVidia drivers. Glxgears seems OK,
>> not as fast as it is on FC4 but around 2K FPS.
>> I've gotten 3K FPS on FC4.
>> I've done some Google searches and can't find anyone
>> with similar issues. Any ideas?
>
> No ideas but you might try running the "top" command at a high
> priority and shipping its output to a disk file. Cancel it immediately
> after a slowdown then look at the output and see if you can figure out
> what is eating your cpu cycles. You will probably need to use an
> update cycle of two seconds.

Thanks Phil.

I've run top and I know X is the process using CPU.
Since my post I installed the latest version (100.14.19) of the
nVidia drivers on my FC4 install. That gave FC4 the same slowness
I saw on FC6. I then installed the older drivers (1.0-9746) on
FC4 and the problem went away.

So at least now I know where the problem is so I'll bring the
issue to the nVidia forums.
From: Alfred E. Neuman on 5 Nov 2007 16:14

> Thanks Phil.
>
> I've run top and I know X is the process using CPU. Since my post I
> installed the latest version (100.14.19) of the nVidia drivers on my FC4
> install. That gave FC4 the same slowness I saw on FC6. I then
> installed the older drivers (1.0-9746) on FC4 and the problem went away.
>
> So at least now I know where the problem is so I'll bring the issue to
> the nVidia forums.

http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9746/README/appendix-
a.html

Nvidia has a list of which drivers to use with which card.
I did not recognize that that might be the problem.

gnubie



From: Dan Espen on 5 Nov 2007 21:17
"Alfred E. Neuman" <linux_fan(a)charter.net> writes:

>> Thanks Phil.
>>
>> I've run top and I know X is the process using CPU. Since my post I
>> installed the latest version (100.14.19) of the nVidia drivers on my FC4
>> install. That gave FC4 the same slowness I saw on FC6. I then
>> installed the older drivers (1.0-9746) on FC4 and the problem went away.
>>
>> So at least now I know where the problem is so I'll bring the issue to
>> the nVidia forums.
>
> http://us.download.nvidia.com/XFree86/Linux-x86/1.0-9746/README/appendix-
> a.html
>
> Nvidia has a list of which drivers to use with which card.
> I did not recognize that that might be the problem.

Mine is a Geforce 7300 GS. It's listed in Appendix A.

It actually works pretty well with 1.0-9746.
It's when I install the newer drivers like 100.14.19 that things
go south.
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