2.6.29-rc breaks STD using Intel 945

2.6.29-rc breaks STD using Intel 945

[Rolf Eike Beer]

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Hi,

I tested several snapshots post 2.6.28 and all of them show one severe 
problem: resume from disk is not always successful. Only about 50% of the 
resume attempts work, in the other cases I just get a completely black 
screen, can't switch to text console or anything. What I often get is a line 
like this in the logs directly before suspend:

[drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled 
pipe 0

Afterwards I find nothing in the logs. Switching back to 2.6.28 and everything 
works fine again. I have a Toshiba A110-178 running openSuSE 11.1 32 bit with 
KDE 4.2.0. I upgraded my Xserver from 1.5 to 1.6 yesterday but that did not 
change anything. The only external module I use is the omnibook module 
(http://sf.net/projects/omnibook) which I've been using for years without any 
problems.

VGA device is this:

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 
943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA 
controller])
        Subsystem: Toshiba America Info Systems Device ff01
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at dc100000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at 1800 [size=8]
        Memory at c0000000 (32-bit, prefetchable) [size=256M]
        Memory at dc200000 (32-bit, non-prefetchable) [size=256K]
        Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- 
Count=1/1 Enable-
        Capabilities: [d0] Power Management version 2
        Kernel modules: intelfb

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML 
Express Integrated Graphics Controller (rev 03)
        Subsystem: Toshiba America Info Systems Device ff01
        Flags: bus master, fast devsel, latency 0
        Memory at dc180000 (32-bit, non-prefetchable) [size=512K]
        Capabilities: [d0] Power Management version 2

If you have any patches you want to try me or have any further questions just 
mail me. If you're hanging around at CeBIT I can come over and we can discuss 
this in person as I'm there for the next days anyway.

Greetings,

Eike

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Re: 2.6.29-rc breaks STD using Intel 945

[Sitsofe Wheeler]

On Wed, Mar 04, 2009 at 08:20:56PM +0100, Rolf Eike Beer wrote:
> 
> I tested several snapshots post 2.6.28 and all of them show one severe 
> problem: resume from disk is not always successful. Only about 50% of the 
> resume attempts work, in the other cases I just get a completely black 
> screen, can't switch to text console or anything. What I often get is a line 
> like this in the logs directly before suspend:

Does this happen when X hasn't been started and you suspend to disk then
resume?

-- 
Sitsofe | http://sucs.org/~sits/

Re: 2.6.29-rc breaks STD using Intel 945

[Rolf Eike Beer]

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Sitsofe Wheeler wrote:
> On Wed, Mar 04, 2009 at 08:20:56PM +0100, Rolf Eike Beer wrote:
> > I tested several snapshots post 2.6.28 and all of them show one severe
> > problem: resume from disk is not always successful. Only about 50% of the
> > resume attempts work, in the other cases I just get a completely black
> > screen, can't switch to text console or anything. What I often get is a
> > line like this in the logs directly before suspend:
>
> Does this happen when X hasn't been started and you suspend to disk then
> resume?

I tested several times without X, with X running only in backgroud (i.e. me 
initiating the suspend from console) and from xdm only. Never it froze. That 
leads me to the conclusion that it is probably related to composite. I'm 
using KDE 4.2.

Here is the corresponding section from Xorg.conf:

Section "Device"
  BoardName    "945 GM"
  BusID        "0:2:0"
  Driver       "intel"
  Identifier   "Device[0]"
  Option       "NoDDC"
  Option       "usevnc" "no"
  VendorName   "Intel"
  Option      "ExaNoComposite" "false"
  Option      "MigrationHeuristic" "greedy"
EndSection

Eike

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Re: 2.6.29-rc breaks STD using Intel 945

[Rafael J. Wysocki]

On Sunday 08 March 2009, Rolf Eike Beer wrote:
> Sitsofe Wheeler wrote:
> > On Wed, Mar 04, 2009 at 08:20:56PM +0100, Rolf Eike Beer wrote:
> > > I tested several snapshots post 2.6.28 and all of them show one severe
> > > problem: resume from disk is not always successful. Only about 50% of the
> > > resume attempts work, in the other cases I just get a completely black
> > > screen, can't switch to text console or anything. What I often get is a
> > > line like this in the logs directly before suspend:
> >
> > Does this happen when X hasn't been started and you suspend to disk then
> > resume?
> 
> I tested several times without X, with X running only in backgroud (i.e. me 
> initiating the suspend from console) and from xdm only. Never it froze. That 
> leads me to the conclusion that it is probably related to composite. I'm 
> using KDE 4.2.

That's most probably correct.

> Here is the corresponding section from Xorg.conf:
> 
> Section "Device"
>   BoardName    "945 GM"
>   BusID        "0:2:0"
>   Driver       "intel"
>   Identifier   "Device[0]"
>   Option       "NoDDC"
>   Option       "usevnc" "no"
>   VendorName   "Intel"
>   Option      "ExaNoComposite" "false"
>   Option      "MigrationHeuristic" "greedy"
> EndSection

It may be related to freedesktop bug at
https://bugs.freedesktop.org/show_bug.cgi?id=17638

Thanks,
Rafael

Re: 2.6.29-rc breaks STD using Intel 945

[Sitsofe Wheeler]

On Sun, Mar 08, 2009 at 07:02:17PM +0100, Rolf Eike Beer wrote:
> Sitsofe Wheeler wrote:
> > On Wed, Mar 04, 2009 at 08:20:56PM +0100, Rolf Eike Beer wrote:
> > > I tested several snapshots post 2.6.28 and all of them show one severe
> > > problem: resume from disk is not always successful. Only about 50% of the
> > > resume attempts work, in the other cases I just get a completely black
> > > screen, can't switch to text console or anything. What I often get is a
> > > line like this in the logs directly before suspend:
> >
> > Does this happen when X hasn't been started and you suspend to disk then
> > resume?
> 
> I tested several times without X, with X running only in backgroud (i.e. me 
> initiating the suspend from console) and from xdm only. Never it froze. That 
> leads me to the conclusion that it is probably related to composite. I'm 

Hmm. Does switching to and then back from a virtual terminal also break?

-- 
Sitsofe | http://sucs.org/~sits/

Re: 2.6.29-rc breaks STD using Intel 945

[Frank Seidel]

Sitsofe Wheeler wrote:
> Hmm. Does switching to and then back from a virtual terminal also break?

I think i have the same problem and yes, switching to and back from vt
also breaks X.
I opened a bug here: https://bugzilla.novell.com/show_bug.cgi?id=485537

For me it currently helps to disable dri which makes my system stable
again.

Thanks,
Frank

Re: 2.6.29-rc breaks STD using Intel 945

[Sitsofe Wheeler]

On Mon, Mar 16, 2009 at 02:02:56PM +0100, Frank Seidel wrote:
> Sitsofe Wheeler wrote:
> > Hmm. Does switching to and then back from a virtual terminal also break?
> 
> I think i have the same problem and yes, switching to and back from vt
> also breaks X.
> I opened a bug here: https://bugzilla.novell.com/show_bug.cgi?id=485537
> 
> For me it currently helps to disable dri which makes my system stable
> again.

The reason I asked is because I am seeing a problem/regression
with VT switching but only when AIGLX is on:
http://marc.info/?l=linux-kernel&m=123523074304955&w=4 ,
http://marc.info/?l=dri-devel&m=123666881014615&w=4 and
http://bugzilla.kernel.org/show_bug.cgi?id=12765 .

The above may or may not be what Rolf is seeing (but if it is it would
be good to know so they can all be collected together)...

-- 
Sitsofe | http://sucs.org/~sits/

Re: 2.6.29-rc breaks STD using Intel 945

[Rolf Eike Beer]

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Sitsofe Wheeler wrote:
> On Sun, Mar 08, 2009 at 07:02:17PM +0100, Rolf Eike Beer wrote:
> > Sitsofe Wheeler wrote:
> > > On Wed, Mar 04, 2009 at 08:20:56PM +0100, Rolf Eike Beer wrote:
> > > > I tested several snapshots post 2.6.28 and all of them show one
> > > > severe problem: resume from disk is not always successful. Only about
> > > > 50% of the resume attempts work, in the other cases I just get a
> > > > completely black screen, can't switch to text console or anything.
> > > > What I often get is a line like this in the logs directly before
> > > > suspend:
> > >
> > > Does this happen when X hasn't been started and you suspend to disk
> > > then resume?
> >
> > I tested several times without X, with X running only in backgroud (i.e.
> > me initiating the suspend from console) and from xdm only. Never it
> > froze. That leads me to the conclusion that it is probably related to
> > composite. I'm
>
> Hmm. Does switching to and then back from a virtual terminal also break?

Nope, works fine (testing current git).

Eike

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Re: 2.6.29-rc breaks STD using Intel 945

[Rafael J. Wysocki]

On Wednesday 04 March 2009, Rolf Eike Beer wrote:
> Hi,
> 
> I tested several snapshots post 2.6.28 and all of them show one severe 
> problem: resume from disk is not always successful. Only about 50% of the 
> resume attempts work, in the other cases I just get a completely black 
> screen, can't switch to text console or anything. What I often get is a line 
> like this in the logs directly before suspend:
> 
> [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled 
> pipe 0
> 
> Afterwards I find nothing in the logs. Switching back to 2.6.28 and everything 
> works fine again. I have a Toshiba A110-178 running openSuSE 11.1 32 bit with 
> KDE 4.2.0. I upgraded my Xserver from 1.5 to 1.6 yesterday but that did not 
> change anything. The only external module I use is the omnibook module 
> (http://sf.net/projects/omnibook) which I've been using for years without any 
> problems.
> 
> VGA device is this:
> 
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 
> 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA 
> controller])
>         Subsystem: Toshiba America Info Systems Device ff01
>         Flags: bus master, fast devsel, latency 0, IRQ 16
>         Memory at dc100000 (32-bit, non-prefetchable) [size=512K]
>         I/O ports at 1800 [size=8]
>         Memory at c0000000 (32-bit, prefetchable) [size=256M]
>         Memory at dc200000 (32-bit, non-prefetchable) [size=256K]
>         Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- 
> Count=1/1 Enable-
>         Capabilities: [d0] Power Management version 2
>         Kernel modules: intelfb
> 
> 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML 
> Express Integrated Graphics Controller (rev 03)
>         Subsystem: Toshiba America Info Systems Device ff01
>         Flags: bus master, fast devsel, latency 0
>         Memory at dc180000 (32-bit, non-prefetchable) [size=512K]
>         Capabilities: [d0] Power Management version 2
> 
> If you have any patches you want to try me or have any further questions just 
> mail me. If you're hanging around at CeBIT I can come over and we can discuss 
> this in person as I'm there for the next days anyway.

What version of the Intel X driver are you using?

Rafael

Re: 2.6.29-rc breaks STD using Intel 945

[Rolf Eike Beer]

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Rafael J. Wysocki wrote:
> On Wednesday 04 March 2009, Rolf Eike Beer wrote:
> > Hi,
> >
> > I tested several snapshots post 2.6.28 and all of them show one severe
> > problem: resume from disk is not always successful. Only about 50% of the
> > resume attempts work, in the other cases I just get a completely black
> > screen, can't switch to text console or anything. What I often get is a
> > line like this in the logs directly before suspend:
> >
> > [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for
> > disabled pipe 0
> >
> > Afterwards I find nothing in the logs. Switching back to 2.6.28 and
> > everything works fine again. I have a Toshiba A110-178 running openSuSE
> > 11.1 32 bit with KDE 4.2.0. I upgraded my Xserver from 1.5 to 1.6
> > yesterday but that did not change anything. The only external module I
> > use is the omnibook module (http://sf.net/projects/omnibook) which I've
> > been using for years without any problems.
> >
> > VGA device is this:
> >
> > 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
> > 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00
> > [VGA controller])
> >         Subsystem: Toshiba America Info Systems Device ff01
> >         Flags: bus master, fast devsel, latency 0, IRQ 16
> >         Memory at dc100000 (32-bit, non-prefetchable) [size=512K]
> >         I/O ports at 1800 [size=8]
> >         Memory at c0000000 (32-bit, prefetchable) [size=256M]
> >         Memory at dc200000 (32-bit, non-prefetchable) [size=256K]
> >         Capabilities: [90] Message Signalled Interrupts: Mask- 64bit-
> > Count=1/1 Enable-
> >         Capabilities: [d0] Power Management version 2
> >         Kernel modules: intelfb
> >
> > 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME,
> > 943/940GML Express Integrated Graphics Controller (rev 03)
> >         Subsystem: Toshiba America Info Systems Device ff01
> >         Flags: bus master, fast devsel, latency 0
> >         Memory at dc180000 (32-bit, non-prefetchable) [size=512K]
> >         Capabilities: [d0] Power Management version 2
> >
> > If you have any patches you want to try me or have any further questions
> > just mail me. If you're hanging around at CeBIT I can come over and we
> > can discuss this in person as I'm there for the next days anyway.
>
> What version of the Intel X driver are you using?

(II) Module intel: vendor="X.Org Foundation"
        compiled for 1.6.0, module version = 2.6.2
        Module class: X.Org Video Driver
        ABI class: X.Org Video Driver, version 5.0

This is was I have currently, before it was whatever was shipped with openSuSE 
11.1.

Eike

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Re: 2.6.29-rc breaks STD using Intel 945

[Rolf Eike Beer]

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Rolf Eike Beer wrote:
> Hi,
>
> I tested several snapshots post 2.6.28 and all of them show one severe
> problem: resume from disk is not always successful. Only about 50% of the
> resume attempts work, in the other cases I just get a completely black
> screen, can't switch to text console or anything. What I often get is a
> line like this in the logs directly before suspend:
>
> [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for
> disabled pipe 0
>
> Afterwards I find nothing in the logs. Switching back to 2.6.28 and
> everything works fine again. I have a Toshiba A110-178 running openSuSE
> 11.1 32 bit with KDE 4.2.0. I upgraded my Xserver from 1.5 to 1.6 yesterday
> but that did not change anything. The only external module I use is the
> omnibook module (http://sf.net/projects/omnibook) which I've been using for
> years without any problems.

The problem still exists in -rc8

Greetings,

Eike

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