support for/detection of new VIA C3 core

support for/detection of new VIA C3 core

[Mathias Kretschmer]

Hi,

Are there any plans to supports this new CPU core in 2.4 ?
i.e. it now supports SSE and no longer 3dnow (as reported
by the kernel).

[root@cinemax rc5.d]# cat /proc/cpuinfo
processor       : 0
vendor_id       : CentaurHauls
cpu family      : 6
model           : 8
model name      : VIA C3 Ezra
stepping        : 9
cpu MHz         : 999.910
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu de tsc msr cx8 mtrr pge mmx 3dnow
bogomips        : 1989.22

Re: support for/detection of new VIA C3 core

[Alan Cox]

On Thu, 2003-03-13 at 04:26, Mathias Kretschmer wrote:
> Hi,
> 
> Are there any plans to supports this new CPU core in 2.4 ?
> i.e. it now supports SSE and no longer 3dnow (as reported
> by the kernel).

The kernel is reporting correctly, and it reads the data from
the CPU. You have a 1GHz Ezra not a Nemiah

Re: support for/detection of new VIA C3 core

[Mathias Kretschmer]

Alan Cox wrote:
> On Thu, 2003-03-13 at 04:26, Mathias Kretschmer wrote:
> 
>>Hi,
>>
>>Are there any plans to supports this new CPU core in 2.4 ?
>>i.e. it now supports SSE and no longer 3dnow (as reported
>>by the kernel).
> 
> 
> The kernel is reporting correctly, and it reads the data from
> the CPU. You have a 1GHz Ezra not a Nemiah

Arghh!  I did ask before I bought it and was being told the CPU
would be a Nemiah...

Anyway, it's fast enough to decode DVD/DivX...

Sorry for the false alarm,

Mathias

Re: support for/detection of new VIA C3 core

[Dave Jones]

On Wed, Mar 12, 2003 at 11:26:19PM -0500, Mathias Kretschmer wrote:
 > Are there any plans to supports this new CPU core in 2.4 ?
 > i.e. it now supports SSE and no longer 3dnow (as reported
 > by the kernel).

Erm, no. SSE is only in newer model 9+ C3s.
After your Ezra came the Ezra-T, and now Nehemiah.

		Dave

2.5 XFree and nvidia geforce.

[Maciej Soltysiak]

Hi,

I am using nvidia drivers for Xwindows under 2.4.

Under 2.5 i would have to use like svga drivers to run it.

What do you think would run better (generally graphics).

2.4+nvidia
or
2.5+some+generic_drivers

Also, why aren't there X drivers for nvidia?

Best Regards,
Maciej Soltysiak

Re: 2.5 XFree and nvidia geforce.

[Marcel J.E. Mol]

You might take a look at

http://www.minion.de/

-Marcel


On Thu, Mar 13, 2003 at 08:28:56PM +0100, Maciej Soltysiak wrote:
> Hi,
> 
> I am using nvidia drivers for Xwindows under 2.4.
> 
> Under 2.5 i would have to use like svga drivers to run it.
> 
> What do you think would run better (generally graphics).
> 
> 2.4+nvidia
> or
> 2.5+some+generic_drivers
> 
> Also, why aren't there X drivers for nvidia?
> 
> Best Regards,
> Maciej Soltysiak
> 
> -
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Re: 2.5 XFree and nvidia geforce.

[Bongani Hlope]

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On Thu, 13 Mar 2003 20:28:56 +0100 (CET)
Maciej Soltysiak <solt@dns.toxicfilms.tv> wrote:

> Hi,
> 
> I am using nvidia drivers for Xwindows under 2.4.
> 
> Under 2.5 i would have to use like svga drivers to run it.
> 
> What do you think would run better (generally graphics).
> 
> 2.4+nvidia
> or
> 2.5+some+generic_drivers
> 
> Also, why aren't there X drivers for nvidia?
> 
> Best Regards,
> Maciej Soltysiak
> 

If you don't inteand to run 3d applications, then you don't need the
nvidia drivers (both for 2.4 and 2.5), but if you want 3d acceleration,
the you best bet is 2.4 + nvidia

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Re: 2.5 XFree and nvidia geforce.

[Valdis.Kletnieks]

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On Thu, 13 Mar 2003 23:16:15 +0200, Bongani Hlope said:

> If you don't inteand to run 3d applications, then you don't need the
> nvidia drivers (both for 2.4 and 2.5), but if you want 3d acceleration,
> the you best bet is 2.4 + nvidia

For reasons I don't claim to understand, the nvidia drivers have much
better 2D acceleration as well.  And with the patches from www.minion.de
they work acceptably under 2.5.64, modulo a few issues:

At least on my Dell laptop (GeForce 440 2Go), the 'GLX' extension will wedge up
the X server (ctl-alt-del still reboots, so the kernel is still there).

Restarting the X server hangs the machine sometimes.

I'm going to take a shot at debugging those two issues now that my office is
remodelled and I have a fighting chance of hooking something to the serial
port for debugging. ;)


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Re: 2.5 XFree and nvidia geforce.

[Ducrot Bruno]

On Thu, Mar 13, 2003 at 04:55:54PM -0500, Valdis.Kletnieks@vt.edu wrote:
> On Thu, 13 Mar 2003 23:16:15 +0200, Bongani Hlope said:
> 
> > If you don't inteand to run 3d applications, then you don't need the
> > nvidia drivers (both for 2.4 and 2.5), but if you want 3d acceleration,
> > the you best bet is 2.4 + nvidia
> 
> For reasons I don't claim to understand, the nvidia drivers have much
> better 2D acceleration as well.  And with the patches from www.minion.de
> they work acceptably under 2.5.64, modulo a few issues:
> 
> At least on my Dell laptop (GeForce 440 2Go), the 'GLX' extension will wedge up
> the X server (ctl-alt-del still reboots, so the kernel is still there).
> 
> Restarting the X server hangs the machine sometimes.
> 
> I'm going to take a shot at debugging those two issues now that my office is
> remodelled and I have a fighting chance of hooking something to the serial
> port for debugging. ;)
> 

One of the main issue for me (I don't want flame please) is
that it kill acpi and/or apm.  Since it's more important for
for me to get suspension working, I can not use any
 drivers provided by nVidia unless of course they implement
necessary support.

BTW, XFree4.3.0 is out, and your GeForce is supported.


-- 
Ducrot Bruno
http://www.poupinou.org        Page profaissionelle
http://toto.tu-me-saoules.com  Haume page

Re: 2.5 XFree and nvidia geforce.

[Maciej Soltysiak]

> One of the main issue for me (I don't want flame please) is
> that it kill acpi and/or apm.
Hmm, just insmoding the drivers kills apm/acpi ?

> BTW, XFree4.3.0 is out, and your GeForce is supported.
So i've heard. :)

Regards,
Maciej

Re: 2.5 XFree and nvidia geforce.

[Ducrot Bruno]

On Fri, Mar 14, 2003 at 09:50:49PM +0100, Maciej Soltysiak wrote:
> > One of the main issue for me (I don't want flame please) is
> > that it kill acpi and/or apm.
> Hmm, just insmoding the drivers kills apm/acpi ?
> 
> > BTW, XFree4.3.0 is out, and your GeForce is supported.
> So i've heard. :)
> 

By 'killing apm/acpi', I meant that the pm callback in the source
part of the kernel module call a function, certainly for saving/restoring
the state of the device, in the binary part.
But this function is not present in the binary part of the driver.

Actually, that was the case with 'older' release of the driver, but
seems to be reintroduced in the lastest one.

Cheers,

-- 
Ducrot Bruno
http://www.poupinou.org        Page profaissionelle
http://toto.tu-me-saoules.com  Haume page

Re: 2.5 XFree and nvidia geforce.

[Valdis.Kletnieks]

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On Fri, 14 Mar 2003 20:40:50 +0100, Ducrot Bruno said:

> One of the main issue for me (I don't want flame please) is
> that it kill acpi and/or apm.  Since it's more important for
> for me to get suspension working, I can not use any
>  drivers provided by nVidia unless of course they implement

No flames intended - I just have different requirements than you do,
and suspending hasn't been an issue for me, and I've not bothered
trying to get it to work.

I've seen a workaround posted for the nvidia suspend issue - the trick was to
configure a suspend script that apmd/whatever would call, and include
a '/usr/bin/chvt 1' in it.  So on the way down, it would change off the
nvidia-controlled VT, and all would be well.

> BTW, XFree4.3.0 is out, and your GeForce is supported.

Oh, the free driver has "supported" the card for ages.  My point was that (a)
the free driver isn't 2-d accelerated as much as the NVidia driver (the 'nv'
free driver can average 10-15% CPU by itself, and the 'nvidia' closed driver
only 1-2% while feeling much quicker), and (b) the NVidia driver "just works"
in finding the video port on the docking station when I'm docked - the 'nv'
free drivers would find the LCD screen fine and not find the docking port
video.

-- 
				Valdis Kletnieks
				Computer Systems Senior Engineer
				Virginia Tech


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Re: 2.5 XFree and nvidia geforce.

[Ducrot Bruno]

On Fri, Mar 14, 2003 at 05:44:00PM -0500, Valdis.Kletnieks@vt.edu wrote:
> On Fri, 14 Mar 2003 20:40:50 +0100, Ducrot Bruno said:
> 
> > One of the main issue for me (I don't want flame please) is
> > that it kill acpi and/or apm.  Since it's more important for
> > for me to get suspension working, I can not use any
> >  drivers provided by nVidia unless of course they implement
> 
> No flames intended - I just have different requirements than you do,
> and suspending hasn't been an issue for me, and I've not bothered
> trying to get it to work.
> 
> I've seen a workaround posted for the nvidia suspend issue - the trick was to
> configure a suspend script that apmd/whatever would call, and include
> a '/usr/bin/chvt 1' in it.  So on the way down, it would change off the
> nvidia-controlled VT, and all would be well.

No.  I spoke for a missing function in the binary part (was present
in 15.., but removed in 20.. and 28..) )...

> 
> > BTW, XFree4.3.0 is out, and your GeForce is supported.
> 
> Oh, the free driver has "supported" the card for ages.  My point was that (a)
> the free driver isn't 2-d accelerated as much as the NVidia driver (the 'nv'
> free driver can average 10-15% CPU by itself, and the 'nvidia' closed driver
> only 1-2% while feeling much quicker), and (b) the NVidia driver "just works"
> in finding the video port on the docking station when I'm docked - the 'nv'
> free drivers would find the LCD screen fine and not find the docking port
> video.

... and seem that this function is now reintroduced in the lasted
release in the nvidia binary.  I guess that more work has to be
done, though, but I consider that my really lastest complain
about the binary driver from nvidia go now to /dev/null.

Cheers,


-- 
Ducrot Bruno
http://www.poupinou.org        Page profaissionelle
http://toto.tu-me-saoules.com  Haume page