Re: intelfb and G33 / Q33 / Q35 chipsets support ?

Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Arjan van de Ven]

On Mon, 28 Apr 2008 17:35:16 +0200
Gabriel C <crazy@frugalware.org> wrote:

> Hello ,
> 
> are there any plans to add G33 / Q33 / Q35 chipsets support for the
> intelfb driver ? Is this driver still maintained ?
> 
> ( I'm not really sure who maintains this driver so I've add peoples
> to CC I saw worked on it , I've also added Wang Zhenyu to CC while he
> added this support for AGP )
> 
> 

the real answer is to not use intelfb, at least not until the modesetting work lands in the kernel.
(and after that... do you really need it?)

intelfb and G33 / Q33 / Q35 chipsets support ?

[Gabriel C]

Hello ,

are there any plans to add G33 / Q33 / Q35 chipsets support for the intelfb driver ?
Is this driver still maintained ?

( I'm not really sure who maintains this driver so I've add peoples to CC I saw worked on it ,
I've also added Wang Zhenyu to CC while he added this support for AGP )


Best Regards,

Gabriel C

Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Dave Airlie]

On Mon, 28 Apr 2008, Gabriel C wrote:

> Hello ,
> 
> are there any plans to add G33 / Q33 / Q35 chipsets support for the intelfb driver ?
> Is this driver still maintained ?
> 
> ( I'm not really sure who maintains this driver so I've add peoples to CC I saw worked on it ,
> I've also added Wang Zhenyu to CC while he added this support for AGP )
> 

Intel fb is unmaintained (well I've done trivial fixes in the past), and 
I'd rather not add new chipset support to it.

We are working (RH and Intel) on a new kernel modesetting layer which will 
allow fbs integrated with proper memory management and support all intel 
hw, 

The main problem with intelfb is it trips up the userspace X drivers a lot 
and generally break things..

Dave.

Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Gabriel C]

Dave Airlie wrote:
> On Mon, 28 Apr 2008, Gabriel C wrote:
> 
>> Hello ,
>>
>> are there any plans to add G33 / Q33 / Q35 chipsets support for the intelfb driver ?
>> Is this driver still maintained ?
>>
>> ( I'm not really sure who maintains this driver so I've add peoples to CC I saw worked on it ,
>> I've also added Wang Zhenyu to CC while he added this support for AGP )
>>
> 
> Intel fb is unmaintained (well I've done trivial fixes in the past), and 
> I'd rather not add new chipset support to it.
> 
> We are working (RH and Intel) on a new kernel modesetting layer which will 
> allow fbs integrated with proper memory management and support all intel 
> hw, 

Good news :)

Are there any patch(es) / git tree one could try out ?

> 
> The main problem with intelfb is it trips up the userspace X drivers a lot 
> and generally break things..

Really ? I didn't knew that. 

> 
> Dave.


Gabriel

Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Jesse Barnes]

On Monday, April 28, 2008 6:24 pm Gabriel C wrote:
> Dave Airlie wrote:
> > On Mon, 28 Apr 2008, Gabriel C wrote:
> >> Hello ,
> >>
> >> are there any plans to add G33 / Q33 / Q35 chipsets support for the
> >> intelfb driver ? Is this driver still maintained ?
> >>
> >> ( I'm not really sure who maintains this driver so I've add peoples to
> >> CC I saw worked on it , I've also added Wang Zhenyu to CC while he added
> >> this support for AGP )
> >
> > Intel fb is unmaintained (well I've done trivial fixes in the past), and
> > I'd rather not add new chipset support to it.
> >
> > We are working (RH and Intel) on a new kernel modesetting layer which
> > will allow fbs integrated with proper memory management and support all
> > intel hw,
>
> Good news :)
>
> Are there any patch(es) / git tree one could try out ?

See the modesetting-101 branch of git://git.freedesktop.org/git/mesa/drm.  
It's a bit rough in spots but the i915 driver should be pretty close to 
feature parity with the Intel X driver at this point.

> > The main problem with intelfb is it trips up the userspace X drivers a
> > lot and generally break things..
>
> Really ? I didn't knew that.

Yeah it's been an ongoing source of problems...

Jesse

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Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Gabriel C]

Jesse Barnes wrote:
> On Monday, April 28, 2008 6:24 pm Gabriel C wrote:
>> Dave Airlie wrote:
>>> On Mon, 28 Apr 2008, Gabriel C wrote:
>>>> Hello ,
>>>>
>>>> are there any plans to add G33 / Q33 / Q35 chipsets support for the
>>>> intelfb driver ? Is this driver still maintained ?
>>>>
>>>> ( I'm not really sure who maintains this driver so I've add peoples to
>>>> CC I saw worked on it , I've also added Wang Zhenyu to CC while he added
>>>> this support for AGP )
>>> Intel fb is unmaintained (well I've done trivial fixes in the past), and
>>> I'd rather not add new chipset support to it.
>>>
>>> We are working (RH and Intel) on a new kernel modesetting layer which
>>> will allow fbs integrated with proper memory management and support all
>>> intel hw,
>> Good news :)
>>
>> Are there any patch(es) / git tree one could try out ?
> 
> See the modesetting-101 branch of git://git.freedesktop.org/git/mesa/drm.  
> It's a bit rough in spots but the i915 driver should be pretty close to 
> feature parity with the Intel X driver at this point.

Thx , I will try out the tree.

> 
>>> The main problem with intelfb is it trips up the userspace X drivers a
>>> lot and generally break things..
>> Really ? I didn't knew that.
> 
> Yeah it's been an ongoing source of problems...
> 
> Jesse
> 

Gabriel

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Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Gabriel C]

Gabriel C wrote:
> Jesse Barnes wrote:
>> On Monday, April 28, 2008 6:24 pm Gabriel C wrote:
>>> Dave Airlie wrote:
>>>> On Mon, 28 Apr 2008, Gabriel C wrote:
>>>>> Hello ,
>>>>>
>>>>> are there any plans to add G33 / Q33 / Q35 chipsets support for the
>>>>> intelfb driver ? Is this driver still maintained ?
>>>>>
>>>>> ( I'm not really sure who maintains this driver so I've add peoples to
>>>>> CC I saw worked on it , I've also added Wang Zhenyu to CC while he added
>>>>> this support for AGP )
>>>> Intel fb is unmaintained (well I've done trivial fixes in the past), and
>>>> I'd rather not add new chipset support to it.
>>>>
>>>> We are working (RH and Intel) on a new kernel modesetting layer which
>>>> will allow fbs integrated with proper memory management and support all
>>>> intel hw,
>>> Good news :)
>>>
>>> Are there any patch(es) / git tree one could try out ?
>> See the modesetting-101 branch of git://git.freedesktop.org/git/mesa/drm.  
>> It's a bit rough in spots but the i915 driver should be pretty close to 
>> feature parity with the Intel X driver at this point.
> 
> Thx , I will try out the tree.
> 

modesetting-101 does not compile on current git , NOPAGE_SIGBUS , nopage and friends gone.


Gabriel 

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Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Jesse Barnes]

On Tuesday, April 29, 2008 7:16 pm Gabriel C wrote:
> >> See the modesetting-101 branch of
> >> git://git.freedesktop.org/git/mesa/drm. It's a bit rough in spots but
> >> the i915 driver should be pretty close to feature parity with the Intel
> >> X driver at this point.
> >
> > Thx , I will try out the tree.
>
> modesetting-101 does not compile on current git , NOPAGE_SIGBUS , nopage
> and friends gone.

Yeah the DRM tree doesn't have a full kernel included, so it'll occasionally 
be out-of-sync.  You could try a different kernel version (it almost always 
works with the last stable release of Linux) or merging DRM master into 
modesetting-101.  Assuming there are no conflicts that might also fix 
things. :)

Jesse

Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Gabriel C]

Jesse Barnes wrote:
> On Tuesday, April 29, 2008 7:16 pm Gabriel C wrote:
>>>> See the modesetting-101 branch of
>>>> git://git.freedesktop.org/git/mesa/drm. It's a bit rough in spots but
>>>> the i915 driver should be pretty close to feature parity with the Intel
>>>> X driver at this point.
>>> Thx , I will try out the tree.
>> modesetting-101 does not compile on current git , NOPAGE_SIGBUS , nopage
>> and friends gone.
> 
> Yeah the DRM tree doesn't have a full kernel included, so it'll occasionally 
> be out-of-sync.  You could try a different kernel version (it almost always 
> works with the last stable release of Linux) or merging DRM master into 
> modesetting-101.  Assuming there are no conflicts that might also fix 
> things. :)

Hehe yes , I noticed :)

I've fixed myself local but it died later with:

WARNING: "i2c_bit_add_bus" [/work/git/drm/linux-core/i915.ko] undefined!

I didn't got time to investigate this one.

> 
> Jesse
> 

Gabriel

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Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Jesse Barnes]

On Monday, May 05, 2008 1:59 pm Gabriel C wrote:
> Jesse Barnes wrote:
> > On Tuesday, April 29, 2008 7:16 pm Gabriel C wrote:
> >>>> See the modesetting-101 branch of
> >>>> git://git.freedesktop.org/git/mesa/drm. It's a bit rough in spots but
> >>>> the i915 driver should be pretty close to feature parity with the
> >>>> Intel X driver at this point.
> >>>
> >>> Thx , I will try out the tree.
> >>
> >> modesetting-101 does not compile on current git , NOPAGE_SIGBUS , nopage
> >> and friends gone.
> >
> > Yeah the DRM tree doesn't have a full kernel included, so it'll
> > occasionally be out-of-sync.  You could try a different kernel version
> > (it almost always works with the last stable release of Linux) or merging
> > DRM master into modesetting-101.  Assuming there are no conflicts that
> > might also fix things. :)
>
> Hehe yes , I noticed :)
>
> I've fixed myself local but it died later with:
>
> WARNING: "i2c_bit_add_bus" [/work/git/drm/linux-core/i915.ko] undefined!
>
> I didn't got time to investigate this one.

That can happen if the i2c stuff isn't loaded before the DRM module.  Usually 
depmod picks this up, but if you have multiple versions lying around it may 
pick the wrong one.  You can still load i2c-core etc. by hand though, and 
then 'insmod i915 modeset=1'.

Jesse

Re: intelfb and G33 / Q33 / Q35 chipsets support ?

[Gabriel C]

Jesse Barnes wrote:
> On Monday, May 05, 2008 1:59 pm Gabriel C wrote:
>> Jesse Barnes wrote:
>>> On Tuesday, April 29, 2008 7:16 pm Gabriel C wrote:
>>>>>> See the modesetting-101 branch of
>>>>>> git://git.freedesktop.org/git/mesa/drm. It's a bit rough in spots but
>>>>>> the i915 driver should be pretty close to feature parity with the
>>>>>> Intel X driver at this point.
>>>>> Thx , I will try out the tree.
>>>> modesetting-101 does not compile on current git , NOPAGE_SIGBUS , nopage
>>>> and friends gone.
>>> Yeah the DRM tree doesn't have a full kernel included, so it'll
>>> occasionally be out-of-sync.  You could try a different kernel version
>>> (it almost always works with the last stable release of Linux) or merging
>>> DRM master into modesetting-101.  Assuming there are no conflicts that
>>> might also fix things. :)
>> Hehe yes , I noticed :)
>>
>> I've fixed myself local but it died later with:
>>
>> WARNING: "i2c_bit_add_bus" [/work/git/drm/linux-core/i915.ko] undefined!
>>
>> I didn't got time to investigate this one.
> 
> That can happen if the i2c stuff isn't loaded before the DRM module.  Usually 
> depmod picks this up, but if you have multiple versions lying around it may 
> pick the wrong one.  You can still load i2c-core etc. by hand though, and 
> then 'insmod i915 modeset=1'.

Right , got it to load at least that way.

It does not work here , with modeset=1 box hangs when staring X , without box magically reboots :-)

I guess I need to test it on 2.6.25 sometimes this week.

> 
> Jesse
> 
> 

Gabriel

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