[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

Martin Peres  changed:

   What|Removed |Added

 Resolution|--- |MOVED
 Status|REOPENED|RESOLVED

--- Comment #45 from Martin Peres  ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/228.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373
Bug 42373 depends on bug 40935, which changed state.

Bug 40935 Summary: radeon lockup on resume
https://bugs.freedesktop.org/show_bug.cgi?id=40935

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |MOVED

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #44 from Alexandre Demers  ---
(In reply to comment #43)
> I do not know if this is relevant, but I recently purchased a radeon 6450
> and had similar issues - corruption when KMS is started and lockups when X
> starts. I did not get these issues in fglrx or the windows drivers.
> 
> I then happened to notice that the memory clock settings for the 'boot'
> power profile were incorrect, and were significantly higher than the card
> should support. The high & low power states appeared to be correct. Changing
> the boot values using the Radeon Bios editor
> (http://www.techpowerup.com/rbe/) fixed these problems for me.

While this is not related to the proposed attachment, it is quite interesting
to know you were able to fix your problem by tweaking your card's bios. Maybe
Kunal could tell us more about some similar observations.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #43 from Jonathan Hamilton  ---
I do not know if this is relevant, but I recently purchased a radeon 6450 and
had similar issues - corruption when KMS is started and lockups when X starts.
I did not get these issues in fglrx or the windows drivers.

I then happened to notice that the memory clock settings for the 'boot' power
profile were incorrect, and were significantly higher than the card should
support. The high & low power states appeared to be correct. Changing the boot
values using the Radeon Bios editor (http://www.techpowerup.com/rbe/) fixed
these problems for me.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #42 from Alexandre Demers  ---
Was attachment 64759 ever applied to kernel's git? While I don't know if the
current bug is still happening for radeon HD 6450 cards, it was fixing bug
43655  (which was considered as a duplicate, but it was not as explained in the
last comment of that bug because it works for HD 6950).

If not, please let me know because I'm still experiencing bug 43655 with kernel
3.9.0-rc4 and attachment 64759 can't be applied on kernel's current git version
(was applying on 3.7, not sure about 3.8, definitively not on 3.9).

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #42 from Alexandre Demers alexandre.f.dem...@gmail.com ---
Was attachment 64759 ever applied to kernel's git? While I don't know if the
current bug is still happening for radeon HD 6450 cards, it was fixing bug
43655  (which was considered as a duplicate, but it was not as explained in the
last comment of that bug because it works for HD 6950).

If not, please let me know because I'm still experiencing bug 43655 with kernel
3.9.0-rc4 and attachment 64759 can't be applied on kernel's current git version
(was applying on 3.7, not sure about 3.8, definitively not on 3.9).

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #43 from Jonathan Hamilton jtrhamil...@gmail.com ---
I do not know if this is relevant, but I recently purchased a radeon 6450 and
had similar issues - corruption when KMS is started and lockups when X starts.
I did not get these issues in fglrx or the windows drivers.

I then happened to notice that the memory clock settings for the 'boot' power
profile were incorrect, and were significantly higher than the card should
support. The high  low power states appeared to be correct. Changing the boot
values using the Radeon Bios editor (http://www.techpowerup.com/rbe/) fixed
these problems for me.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #44 from Alexandre Demers alexandre.f.dem...@gmail.com ---
(In reply to comment #43)
 I do not know if this is relevant, but I recently purchased a radeon 6450
 and had similar issues - corruption when KMS is started and lockups when X
 starts. I did not get these issues in fglrx or the windows drivers.
 
 I then happened to notice that the memory clock settings for the 'boot'
 power profile were incorrect, and were significantly higher than the card
 should support. The high  low power states appeared to be correct. Changing
 the boot values using the Radeon Bios editor
 (http://www.techpowerup.com/rbe/) fixed these problems for me.

While this is not related to the proposed attachment, it is quite interesting
to know you were able to fix your problem by tweaking your card's bios. Maybe
Kunal could tell us more about some similar observations.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #41 from Kunal  ---
Hi,

Any update on this bug?
As I mentioned in my previous comment c#37, v3.7-rc5 has been no better.

Anything more that I can try?

Any clue if and where can I find the documentation for the chip? (RV730, IIRC)
Just so that I can learn about the code.

Thanks,
Kunal

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #41 from Kunal kunal.gangakhed...@gmail.com ---
Hi,

Any update on this bug?
As I mentioned in my previous comment c#37, v3.7-rc5 has been no better.

Anything more that I can try?

Any clue if and where can I find the documentation for the chip? (RV730, IIRC)
Just so that I can learn about the code.

Thanks,
Kunal

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #40 from Kunal  ---
(In reply to comment #37)
> (In reply to comment #36)
> > (In reply to comment #35)
> > > Did you tested 3.7 kernel ? Bunch of patch went in some might help your 
> > > case.
> > 
> > No, not yet.
> > Will build and test a 3.7-rc1 based kernel and report back.
> > 
> > Thanks,
> > Kunal
> 
> OK, didn't get time to try 3.7-rc1. So, instead, installed 3.7-rc5 based
> Ubuntu kernel from:
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/
> 
> (specifically, following files:
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-
> 3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
> 
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-
> 3.7.0-030700rc5_3.7.0-030700rc5.20120835_all.deb
> 
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-3.
> 7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
> 
> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-
> extra-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
> )
> 
> With this, situation is no better. In fact, with this kernel, I cannot even
> switch to a tty to restart X - which works happily on my current
> 3.2.0-32-generic
> (package: "linux-image-3.2.0-32-generic" version: "3.2.0-32.51").
> 
> There is no significant message logged in the syslog with 3.7-rc5 which can
> point to a problem. Attaching the dmesg output and Xorg log anyways.
> 
> Thanks,
> Kunal

One more point to note:
Whenever I try to reboot from 3.7-rc5 into 3.2.0-32, switch-to-tty + restart-x
routine doesn't work even with the previously working setup. 
It exhibits the same issue as 3.7-rc5.

Any clue why so?
Something to do with VRAM registers?
Just guessing..

Thanks,
Kunal

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--- Comment #39 from Kunal  ---
Created attachment 69927
  --> https://bugs.freedesktop.org/attachment.cgi?id=69927=edit
xorg log as of 11th Nov, 2012

xorg log for 3.7-rc5.

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--- Comment #38 from Kunal  ---
Created attachment 69926
  --> https://bugs.freedesktop.org/attachment.cgi?id=69926=edit
dmesg output as of 11th Nov., 2012.

dmesg output from 3.7-rc5.

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--- Comment #37 from Kunal  ---
(In reply to comment #36)
> (In reply to comment #35)
> > Did you tested 3.7 kernel ? Bunch of patch went in some might help your 
> > case.
> 
> No, not yet.
> Will build and test a 3.7-rc1 based kernel and report back.
> 
> Thanks,
> Kunal

OK, didn't get time to try 3.7-rc1. So, instead, installed 3.7-rc5 based Ubuntu
kernel from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/

(specifically, following files:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-3.7.0-030700rc5_3.7.0-030700rc5.20120835_all.deb

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-extra-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
)

With this, situation is no better. In fact, with this kernel, I cannot even
switch to a tty to restart X - which works happily on my current
3.2.0-32-generic
(package: "linux-image-3.2.0-32-generic" version: "3.2.0-32.51").

There is no significant message logged in the syslog with 3.7-rc5 which can
point to a problem. Attaching the dmesg output and Xorg log anyways.

Thanks,
Kunal

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #37 from Kunal kunal.gangakhed...@gmail.com ---
(In reply to comment #36)
 (In reply to comment #35)
  Did you tested 3.7 kernel ? Bunch of patch went in some might help your 
  case.
 
 No, not yet.
 Will build and test a 3.7-rc1 based kernel and report back.
 
 Thanks,
 Kunal

OK, didn't get time to try 3.7-rc1. So, instead, installed 3.7-rc5 based Ubuntu
kernel from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/

(specifically, following files:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-3.7.0-030700rc5_3.7.0-030700rc5.20120835_all.deb

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-extra-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
)

With this, situation is no better. In fact, with this kernel, I cannot even
switch to a tty to restart X - which works happily on my current
3.2.0-32-generic
(package: linux-image-3.2.0-32-generic version: 3.2.0-32.51).

There is no significant message logged in the syslog with 3.7-rc5 which can
point to a problem. Attaching the dmesg output and Xorg log anyways.

Thanks,
Kunal

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #38 from Kunal kunal.gangakhed...@gmail.com ---
Created attachment 69926
  -- https://bugs.freedesktop.org/attachment.cgi?id=69926action=edit
dmesg output as of 11th Nov., 2012.

dmesg output from 3.7-rc5.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #39 from Kunal kunal.gangakhed...@gmail.com ---
Created attachment 69927
  -- https://bugs.freedesktop.org/attachment.cgi?id=69927action=edit
xorg log as of 11th Nov, 2012

xorg log for 3.7-rc5.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #40 from Kunal kunal.gangakhed...@gmail.com ---
(In reply to comment #37)
 (In reply to comment #36)
  (In reply to comment #35)
   Did you tested 3.7 kernel ? Bunch of patch went in some might help your 
   case.
  
  No, not yet.
  Will build and test a 3.7-rc1 based kernel and report back.
  
  Thanks,
  Kunal
 
 OK, didn't get time to try 3.7-rc1. So, instead, installed 3.7-rc5 based
 Ubuntu kernel from:
 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/
 
 (specifically, following files:
 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-
 3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
 
 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-headers-
 3.7.0-030700rc5_3.7.0-030700rc5.20120835_all.deb
 
 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-3.
 7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
 
 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc5-raring/linux-image-
 extra-3.7.0-030700rc5-generic_3.7.0-030700rc5.20120835_amd64.deb
 )
 
 With this, situation is no better. In fact, with this kernel, I cannot even
 switch to a tty to restart X - which works happily on my current
 3.2.0-32-generic
 (package: linux-image-3.2.0-32-generic version: 3.2.0-32.51).
 
 There is no significant message logged in the syslog with 3.7-rc5 which can
 point to a problem. Attaching the dmesg output and Xorg log anyways.
 
 Thanks,
 Kunal

One more point to note:
Whenever I try to reboot from 3.7-rc5 into 3.2.0-32, switch-to-tty + restart-x
routine doesn't work even with the previously working setup. 
It exhibits the same issue as 3.7-rc5.

Any clue why so?
Something to do with VRAM registers?
Just guessing..

Thanks,
Kunal

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #36 from Kunal  ---
(In reply to comment #35)
> Did you tested 3.7 kernel ? Bunch of patch went in some might help your case.

No, not yet.
Will build and test a 3.7-rc1 based kernel and report back.

Thanks,
Kunal

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--- Comment #36 from Kunal kunal.gangakhed...@gmail.com ---
(In reply to comment #35)
 Did you tested 3.7 kernel ? Bunch of patch went in some might help your case.

No, not yet.
Will build and test a 3.7-rc1 based kernel and report back.

Thanks,
Kunal

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--- Comment #35 from Jerome Glisse  ---
Did you tested 3.7 kernel ? Bunch of patch went in some might help your case.

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Alexandre Demers  changed:

   What|Removed |Added

   See Also||https://bugs.freedesktop.or
   ||g/show_bug.cgi?id=56139

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Alexandre Demers alexandre.f.dem...@gmail.com changed:

   What|Removed |Added

   See Also||https://bugs.freedesktop.or
   ||g/show_bug.cgi?id=56139

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #35 from Jerome Glisse gli...@freedesktop.org ---
Did you tested 3.7 kernel ? Bunch of patch went in some might help your case.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #34 from Kunal  2012-09-17 
04:29:16 UTC ---
Any update on this bug?
Anything more that I can try?

Haven't seen any patches related to this bug going into Linus' tree as well.

Thanks,
Kunal

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--- Comment #34 from Kunal kunal.gangakhed...@gmail.com 2012-09-17 04:29:16 
UTC ---
Any update on this bug?
Anything more that I can try?

Haven't seen any patches related to this bug going into Linus' tree as well.

Thanks,
Kunal

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #33 from Kunal  2012-08-23 
04:58:33 UTC ---
(In reply to comment #28)
> (In reply to comment #27)
> > (In reply to comment #26)
> > > (In reply to comment #25)
> > > > You might try the 5 patches starting with this one:
> > > > http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html
> > > 
> > > On top of previous patche(s) (by Jerome)? or as separate set?
> > 
> > They apply on top of his patches.
> 
> No luck :(
> It's still the same after applying those patches and rebuilding the kernel.
> 
> Attaching the xorg log and dmesg log after this.

Anything more that I can try?
Or something wrong that I did?

Do these patches need any additional bits from 3.6 kernels?
Asking since the Ubuntu Quantal series is based on 3.5 while these patches are
all fairly new.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #33 from Kunal kunal.gangakhed...@gmail.com 2012-08-23 04:58:33 
UTC ---
(In reply to comment #28)
 (In reply to comment #27)
  (In reply to comment #26)
   (In reply to comment #25)
You might try the 5 patches starting with this one:
http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html
   
   On top of previous patche(s) (by Jerome)? or as separate set?
  
  They apply on top of his patches.
 
 No luck :(
 It's still the same after applying those patches and rebuilding the kernel.
 
 Attaching the xorg log and dmesg log after this.

Anything more that I can try?
Or something wrong that I did?

Do these patches need any additional bits from 3.6 kernels?
Asking since the Ubuntu Quantal series is based on 3.5 while these patches are
all fairly new.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #32 from Alex Deucher  2012-08-20 14:03:44 UTC 
---
A similar patch is already upstream:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5

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--- Comment #31 from Alexandre Demers  
2012-08-20 03:01:28 UTC ---
(In reply to comment #16)
> Created attachment 64759 [details] [review]
> Fixup mc programing
> 
> This patch should fix your issue.

This patch doesn't apply correctly on kernel 3.6-rc2. Would it be possible to
rebase or, even better, push it to kernel since it fixes problem with CAYMAN
(bug 43655, which should not be considered as a duplicate (similar symptoms,
different fix))

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--- Comment #32 from Alex Deucher ag...@yahoo.com 2012-08-20 14:03:44 UTC ---
A similar patch is already upstream:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #31 from Alexandre Demers alexandre.f.dem...@gmail.com 2012-08-20 
03:01:28 UTC ---
(In reply to comment #16)
 Created attachment 64759 [details] [review]
 Fixup mc programing
 
 This patch should fix your issue.

This patch doesn't apply correctly on kernel 3.6-rc2. Would it be possible to
rebase or, even better, push it to kernel since it fixes problem with CAYMAN
(bug 43655, which should not be considered as a duplicate (similar symptoms,
different fix))

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #30 from Kunal  2012-08-17 
18:11:43 UTC ---
Created attachment 65704
  --> https://bugs.freedesktop.org/attachment.cgi?id=65704
xorg log as of 17th Aug, 2012

xorg log for the same.

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--- Comment #29 from Kunal  2012-08-17 
18:11:08 UTC ---
Created attachment 65703
  --> https://bugs.freedesktop.org/attachment.cgi?id=65703
dmesg output as of 17th Aug., 2012.

dmesg output with the new kernel.

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--- Comment #28 from Kunal  2012-08-17 
18:10:08 UTC ---
(In reply to comment #27)
> (In reply to comment #26)
> > (In reply to comment #25)
> > > You might try the 5 patches starting with this one:
> > > http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html
> > 
> > On top of previous patche(s) (by Jerome)? or as separate set?
> 
> They apply on top of his patches.

No luck :(
It's still the same after applying those patches and rebuilding the kernel.

Attaching the xorg log and dmesg log after this.

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--- Comment #27 from Alex Deucher  2012-08-17 14:21:26 UTC 
---
(In reply to comment #26)
> (In reply to comment #25)
> > You might try the 5 patches starting with this one:
> > http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html
> 
> On top of previous patche(s) (by Jerome)? or as separate set?

They apply on top of his patches.

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--- Comment #26 from Kunal  2012-08-17 
13:54:43 UTC ---
(In reply to comment #25)
> You might try the 5 patches starting with this one:
> http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html

On top of previous patche(s) (by Jerome)? or as separate set?

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--- Comment #26 from Kunal kunal.gangakhed...@gmail.com 2012-08-17 13:54:43 
UTC ---
(In reply to comment #25)
 You might try the 5 patches starting with this one:
 http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html

On top of previous patche(s) (by Jerome)? or as separate set?

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #27 from Alex Deucher ag...@yahoo.com 2012-08-17 14:21:26 UTC ---
(In reply to comment #26)
 (In reply to comment #25)
  You might try the 5 patches starting with this one:
  http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html
 
 On top of previous patche(s) (by Jerome)? or as separate set?

They apply on top of his patches.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #28 from Kunal kunal.gangakhed...@gmail.com 2012-08-17 18:10:08 
UTC ---
(In reply to comment #27)
 (In reply to comment #26)
  (In reply to comment #25)
   You might try the 5 patches starting with this one:
   http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html
  
  On top of previous patche(s) (by Jerome)? or as separate set?
 
 They apply on top of his patches.

No luck :(
It's still the same after applying those patches and rebuilding the kernel.

Attaching the xorg log and dmesg log after this.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #29 from Kunal kunal.gangakhed...@gmail.com 2012-08-17 18:11:08 
UTC ---
Created attachment 65703
  -- https://bugs.freedesktop.org/attachment.cgi?id=65703
dmesg output as of 17th Aug., 2012.

dmesg output with the new kernel.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #30 from Kunal kunal.gangakhed...@gmail.com 2012-08-17 18:11:43 
UTC ---
Created attachment 65704
  -- https://bugs.freedesktop.org/attachment.cgi?id=65704
xorg log as of 17th Aug, 2012

xorg log for the same.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #25 from Alex Deucher  2012-08-16 21:59:05 UTC 
---
You might try the 5 patches starting with this one:
http://lists.freedesktop.org/archives/dri-devel/2012-August/026498.html

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--- Comment #24 from Erik Hardesty  2012-08-16 21:44:57 
UTC ---
I am also experiencing complete display corruption with KMS and my Radeon 6450
HD.
Building an updated kernel with the following commit did not help:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5

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--- Comment #24 from Erik Hardesty daling...@gmail.com 2012-08-16 21:44:57 
UTC ---
I am also experiencing complete display corruption with KMS and my Radeon 6450
HD.
Building an updated kernel with the following commit did not help:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #23 from Alexandre Demers  
2012-08-15 21:13:54 UTC ---
If it doesn't fix the bug for Kunal, does it means bug 43655 is not a duplicate
of this one? If so, both bugs should be unlinked and attachment 64759 should be
assigned as a fix for bug 43655 and commited as is since it does fix a bug on
my side.

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Kunal  changed:

   What|Removed |Added

  Attachment #65604|application/octet-stream|text/x-log
  mime type||

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--- Comment #22 from Kunal  2012-08-15 
15:43:01 UTC ---
Created attachment 65604
  --> https://bugs.freedesktop.org/attachment.cgi?id=65604
dmesg output as of 15th Aug., 2012.

dmesg output with new kernel with commit
81ee8fb6b52ec69eeed37fe7943446af1dccecc5.
Lots of GPU softresets at the bottom of the log.

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--- Comment #21 from Kunal  2012-08-15 
15:41:05 UTC ---
Unfortunately, this patch on its own doesn't fix the problem for me. :(

I also noticed a new commit with reference to this bug in Linus' tree when I
synced my git tree:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5

So, I cherry-picked this patch on top of commit
0937d042b97a9540b5488ab172aa14b53e80014b of Ubuntu's quantal tree from:
git://kernel.ubuntu.com/ubuntu/ubuntu-quantal.git

and built the new kernel from it on 15th Aug., 2012.

And it still doesn't solve the problem for me :(
The behaviour remains the same.

Anything more that I can try?

I tried to apply this patch on top of commit
81ee8fb6b52ec69eeed37fe7943446af1dccecc5, but it fails to apply at all.

I'm now starting to wonder if it's really a driver issue or whether I have
gotten a bad card. But, the fact that I can switch to tty (after repeatedly
hitting ctrl+alt+f1 for about 30-40 times in fast successions) and then restart
kdm without any artifacts suggests that the card is fine.
Could it be some race condition being triggered?

Attaching the dmesg output.

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--- Comment #21 from Kunal kunal.gangakhed...@gmail.com 2012-08-15 15:41:05 
UTC ---
Unfortunately, this patch on its own doesn't fix the problem for me. :(

I also noticed a new commit with reference to this bug in Linus' tree when I
synced my git tree:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=81ee8fb6b52ec69eeed37fe7943446af1dccecc5

So, I cherry-picked this patch on top of commit
0937d042b97a9540b5488ab172aa14b53e80014b of Ubuntu's quantal tree from:
git://kernel.ubuntu.com/ubuntu/ubuntu-quantal.git

and built the new kernel from it on 15th Aug., 2012.

And it still doesn't solve the problem for me :(
The behaviour remains the same.

Anything more that I can try?

I tried to apply this patch on top of commit
81ee8fb6b52ec69eeed37fe7943446af1dccecc5, but it fails to apply at all.

I'm now starting to wonder if it's really a driver issue or whether I have
gotten a bad card. But, the fact that I can switch to tty (after repeatedly
hitting ctrl+alt+f1 for about 30-40 times in fast successions) and then restart
kdm without any artifacts suggests that the card is fine.
Could it be some race condition being triggered?

Attaching the dmesg output.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #22 from Kunal kunal.gangakhed...@gmail.com 2012-08-15 15:43:01 
UTC ---
Created attachment 65604
  -- https://bugs.freedesktop.org/attachment.cgi?id=65604
dmesg output as of 15th Aug., 2012.

dmesg output with new kernel with commit
81ee8fb6b52ec69eeed37fe7943446af1dccecc5.
Lots of GPU softresets at the bottom of the log.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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--- Comment #23 from Alexandre Demers alexandre.f.dem...@gmail.com 2012-08-15 
21:13:54 UTC ---
If it doesn't fix the bug for Kunal, does it means bug 43655 is not a duplicate
of this one? If so, both bugs should be unlinked and attachment 64759 should be
assigned as a fix for bug 43655 and commited as is since it does fix a bug on
my side.

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--- Comment #20 from Kunal  2012-08-08 
18:04:18 UTC ---
(In reply to comment #18)
> (In reply to comment #16)
> > Created attachment 64759 [details] [review] [review]
> > Fixup mc programing
> > 
> > This patch should fix your issue.
> 
> Thanks for the patch. Will test it over this weekend (4th - 5th Aug.) and post
> back.

Damn, my motherboard died :(
Waiting for a replacement.

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--- Comment #19 from Alexandre Demers  
2012-08-04 17:47:40 UTC ---
For info from bug 43655, it fixes the bug on Cayman (XFX 6950).

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--- Comment #18 from Kunal  2012-08-04 
13:52:23 UTC ---
(In reply to comment #16)
> Created attachment 64759 [details] [review]
> Fixup mc programing
> 
> This patch should fix your issue.

Thanks for the patch. Will test it over this weekend (4th - 5th Aug.) and post
back.

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Alex Deucher  changed:

   What|Removed |Added

 CC||alexandre.f.demers at gmail.co
   ||m

--- Comment #17 from Alex Deucher  2012-08-04 13:26:36 UTC 
---
*** Bug 43655 has been marked as a duplicate of this bug. ***

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Alex Deucher ag...@yahoo.com changed:

   What|Removed |Added

 CC||alexandre.f.dem...@gmail.co
   ||m

--- Comment #17 from Alex Deucher ag...@yahoo.com 2012-08-04 13:26:36 UTC ---
*** Bug 43655 has been marked as a duplicate of this bug. ***

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--- Comment #18 from Kunal kunal.gangakhed...@gmail.com 2012-08-04 13:52:23 
UTC ---
(In reply to comment #16)
 Created attachment 64759 [details] [review]
 Fixup mc programing
 
 This patch should fix your issue.

Thanks for the patch. Will test it over this weekend (4th - 5th Aug.) and post
back.

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--- Comment #16 from Jerome Glisse gli...@freedesktop.org 2012-07-26 23:26:33 
PDT ---
Created attachment 64759
  -- https://bugs.freedesktop.org/attachment.cgi?id=64759
Fixup mc programing

This patch should fix your issue.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #15 from Reartes Guillermo  2012-06-16 
14:28:55 PDT ---
Regarding: 

AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000f002e9000 flags=0x0010]

(RH BZ: 827123)

I do get those from time to time with CAICOS, with no apparent or yet traceable
consequences.

01:00.0 VGA compatible controller [0300]: ATI Technologies Inc NI Caicos [AMD
RADEON HD 6450] [1002:6779]

And it happens on the hosts, just to be sure. I do not use virtualbox on this
machine, just KVM.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #15 from Reartes Guillermo rtgui...@gmail.com 2012-06-16 14:28:55 
PDT ---
Regarding: 

AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000f002e9000 flags=0x0010]

(RH BZ: 827123)

I do get those from time to time with CAICOS, with no apparent or yet traceable
consequences.

01:00.0 VGA compatible controller [0300]: ATI Technologies Inc NI Caicos [AMD
RADEON HD 6450] [1002:6779]

And it happens on the hosts, just to be sure. I do not use virtualbox on this
machine, just KVM.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #14 from Jerome Glisse  2011-11-11 
16:13:51 PST ---
Created attachment 53428
  --> https://bugs.freedesktop.org/attachment.cgi?id=53428
Verbose debug to help pin point issue

Can you build a kernel with attached patch and boot with iommu=off and attach
dmesg

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #14 from Jerome Glisse gli...@freedesktop.org 2011-11-11 16:13:51 
PST ---
Created attachment 53428
  -- https://bugs.freedesktop.org/attachment.cgi?id=53428
Verbose debug to help pin point issue

Can you build a kernel with attached patch and boot with iommu=off and attach
dmesg

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #13 from Kunal  2011-11-10 
09:38:31 PST ---
Created attachment 53375
  --> https://bugs.freedesktop.org/attachment.cgi?id=53375
dmesg log with "amd_iommu=off iommu=off" options added to cmdline

(In reply to comment #12)
> Does booting with following kernel options help
> amd_iommu=off iommu=off

No, it doesn't help in any way.
Attaching dmesg log.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #13 from Kunal kunal.gangakhed...@gmail.com 2011-11-10 09:38:31 
PST ---
Created attachment 53375
  -- https://bugs.freedesktop.org/attachment.cgi?id=53375
dmesg log with amd_iommu=off iommu=off options added to cmdline

(In reply to comment #12)
 Does booting with following kernel options help
 amd_iommu=off iommu=off

No, it doesn't help in any way.
Attaching dmesg log.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #12 from Jerome Glisse  2011-11-07 
10:53:17 PST ---
Does booting with following kernel options help
amd_iommu=off iommu=off

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #11 from Kunal  2011-11-07 
10:10:30 PST ---
(In reply to comment #9)
> (In reply to comment #8)
> > Are you doing this under a virtual box ? If so it's not supported
> 
> No - this is my bare-metal machine booting.
> I use VirtualBox to boot into a server version of Ubuntu where I do my
> development work.
> 
> Besides, I thought VirtualBox emulated its own vga card - why would you see 
> the
> radeon card inside a virtual machine?

BTW, the main issue (of screen corruption) has been happening since even before
I installed virtualbox.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #10 from Kunal  2011-11-07 
10:09:33 PST ---
Created attachment 53253
  --> https://bugs.freedesktop.org/attachment.cgi?id=53253
dmesg log after pm-resume attempt

Trying to wake up from suspend-to-ram state also exhibits the same issue.
Moreover, lots of additional messages dumped in dmesg.
Attached the dmesg output here.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #8 from Jerome Glisse  2011-11-07 
07:29:29 PST ---
Are you doing this under a virtual box ? If so it's not supported

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #9 from Kunal  2011-11-07 10:06:41 
UTC ---
(In reply to comment #8)
> Are you doing this under a virtual box ? If so it's not supported

No - this is my bare-metal machine booting.
I use VirtualBox to boot into a server version of Ubuntu where I do my
development work.

Besides, I thought VirtualBox emulated its own vga card - why would you see the
radeon card inside a virtual machine?

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #7 from Kunal  2011-11-06 20:29:09 
PST ---
Created attachment 53225
  --> https://bugs.freedesktop.org/attachment.cgi?id=53225
dmesg output from 3.1.0-2.3 taken on 2011-11-07

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #6 from Kunal  2011-11-06 20:28:26 
PST ---
Noticed these new messages in dmesg output:
[   15.828387] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7000 flags=0x0010]
[   15.828394] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7080 flags=0x0010]
[   15.828397] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7040 flags=0x0010]
[   15.828399] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e70c0 flags=0x0010]
[   15.828401] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7100 flags=0x0010]
[   15.828404] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7140 flags=0x0010]
[   15.828406] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7180 flags=0x0010]
[   15.828408] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e71c0 flags=0x0010]
[   15.828410] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7200 flags=0x0010]
[   15.828412] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7240 flags=0x0010]
[   15.828414] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7280 flags=0x0010]
[   15.828416] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e72c0 flags=0x0010]
[   15.828418] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7300 flags=0x0010]
[   15.828421] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7480 flags=0x0010]
[   15.828423] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7340 flags=0x0010]
[   15.828425] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e74c0 flags=0x0010]
[   15.828427] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7380 flags=0x0010]
[   15.828429] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7500 flags=0x0010]
[   15.828431] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e73c0 flags=0x0010]
[   15.828433] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7540 flags=0x0010]
[   15.828435] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7400 flags=0x0010]
[   15.828438] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7580 flags=0x0010]
[   15.828440] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7440 flags=0x0010]
[   15.828442] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e75c0 flags=0x0010]

Matching the "device=..." from above messages with output from lspci shows that
these are from radeon driver.

"lspci -vvnn | grep 01:00.0" output:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc NI Caicos [AMD
RADEON HD 6450] [1002:6779] (prog-if 00 [VGA controller])

I don't know much about how IOMMU works - hence thought I'd just post it in the
bug report if it helps you in any way.

Attaching the full dmesg log after this comment.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #8 from Jerome Glisse gli...@freedesktop.org 2011-11-07 07:29:29 
PST ---
Are you doing this under a virtual box ? If so it's not supported

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #9 from Kunal kunal.gangakhed...@gmail.com 2011-11-07 10:06:41 
UTC ---
(In reply to comment #8)
 Are you doing this under a virtual box ? If so it's not supported

No - this is my bare-metal machine booting.
I use VirtualBox to boot into a server version of Ubuntu where I do my
development work.

Besides, I thought VirtualBox emulated its own vga card - why would you see the
radeon card inside a virtual machine?

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #12 from Jerome Glisse gli...@freedesktop.org 2011-11-07 10:53:17 
PST ---
Does booting with following kernel options help
amd_iommu=off iommu=off

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #5 from Kunal  2011-11-06 02:00:43 
PST ---
Created attachment 53209
  --> https://bugs.freedesktop.org/attachment.cgi?id=53209
new dmesg.log with kernel 3.1.0-2.3

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

Kunal  changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|DUPLICATE   |

--- Comment #4 from Kunal  2011-11-06 01:59:44 
PST ---
(In reply to comment #3)
> Should be fixed with this patch:
> http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes=12d5180bd7e683a4ae80830b82ba67e7b7fac7b2
> 
> *** This bug has been marked as a duplicate of bug 40103 ***

No, it doesn't solve the screen corruption at both boot time as well as while
starting Xorg.

I installed new kernel from Ubuntu's builds - so now I'm running 3.1.0-2.3 -
the current HEAD of
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-precise.git;a=summary

This is rebased to v3.1 from Linus' tree.

The ubuntu-precise tree already has the commit you mentioned:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-precise.git;a=commit;h=12d5180bd7e683a4ae80830b82ba67e7b7fac7b2

The severity of lockups seems to have reduced - however, I haven't tested it
thoroughly yet. It still locked up while starting Xorg/KDM, but I could at
least switch to tty1 and stop KDM. I started KDM after a while and it started
properly. Also, dmesg didn't show any more "GPU lockup" messages after KDM
started properly.

Is it possible to load radeon.ko with some debug setting enabled? so that it
can dump more verbose messages - if that helps you.
"modinfo radeon" doesn't show any "debug..." parameter that can be used.

Not uploading new screenshots since there are no changes - (b) and (d) from
earlier screenshots is what I got when booting into the new kernel.

Attaching the new dmesg after this comment.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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Kunal kunal.gangakhed...@gmail.com changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|DUPLICATE   |

--- Comment #4 from Kunal kunal.gangakhed...@gmail.com 2011-11-06 01:59:44 
PST ---
(In reply to comment #3)
 Should be fixed with this patch:
 http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixesid=12d5180bd7e683a4ae80830b82ba67e7b7fac7b2
 
 *** This bug has been marked as a duplicate of bug 40103 ***

No, it doesn't solve the screen corruption at both boot time as well as while
starting Xorg.

I installed new kernel from Ubuntu's builds - so now I'm running 3.1.0-2.3 -
the current HEAD of
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-precise.git;a=summary

This is rebased to v3.1 from Linus' tree.

The ubuntu-precise tree already has the commit you mentioned:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-precise.git;a=commit;h=12d5180bd7e683a4ae80830b82ba67e7b7fac7b2

The severity of lockups seems to have reduced - however, I haven't tested it
thoroughly yet. It still locked up while starting Xorg/KDM, but I could at
least switch to tty1 and stop KDM. I started KDM after a while and it started
properly. Also, dmesg didn't show any more GPU lockup messages after KDM
started properly.

Is it possible to load radeon.ko with some debug setting enabled? so that it
can dump more verbose messages - if that helps you.
modinfo radeon doesn't show any debug... parameter that can be used.

Not uploading new screenshots since there are no changes - (b) and (d) from
earlier screenshots is what I got when booting into the new kernel.

Attaching the new dmesg after this comment.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #5 from Kunal kunal.gangakhed...@gmail.com 2011-11-06 02:00:43 
PST ---
Created attachment 53209
  -- https://bugs.freedesktop.org/attachment.cgi?id=53209
new dmesg.log with kernel 3.1.0-2.3

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

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https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #6 from Kunal kunal.gangakhed...@gmail.com 2011-11-06 20:28:26 
PST ---
Noticed these new messages in dmesg output:
[   15.828387] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7000 flags=0x0010]
[   15.828394] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7080 flags=0x0010]
[   15.828397] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7040 flags=0x0010]
[   15.828399] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e70c0 flags=0x0010]
[   15.828401] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7100 flags=0x0010]
[   15.828404] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7140 flags=0x0010]
[   15.828406] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7180 flags=0x0010]
[   15.828408] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e71c0 flags=0x0010]
[   15.828410] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7200 flags=0x0010]
[   15.828412] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7240 flags=0x0010]
[   15.828414] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7280 flags=0x0010]
[   15.828416] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e72c0 flags=0x0010]
[   15.828418] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7300 flags=0x0010]
[   15.828421] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7480 flags=0x0010]
[   15.828423] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7340 flags=0x0010]
[   15.828425] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e74c0 flags=0x0010]
[   15.828427] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7380 flags=0x0010]
[   15.828429] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7500 flags=0x0010]
[   15.828431] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e73c0 flags=0x0010]
[   15.828433] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7540 flags=0x0010]
[   15.828435] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7400 flags=0x0010]
[   15.828438] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7580 flags=0x0010]
[   15.828440] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e7440 flags=0x0010]
[   15.828442] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0016
address=0x000e75c0 flags=0x0010]

Matching the device=... from above messages with output from lspci shows that
these are from radeon driver.

lspci -vvnn | grep 01:00.0 output:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc NI Caicos [AMD
RADEON HD 6450] [1002:6779] (prog-if 00 [VGA controller])

I don't know much about how IOMMU works - hence thought I'd just post it in the
bug report if it helps you in any way.

Attaching the full dmesg log after this comment.

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #7 from Kunal kunal.gangakhed...@gmail.com 2011-11-06 20:29:09 
PST ---
Created attachment 53225
  -- https://bugs.freedesktop.org/attachment.cgi?id=53225
dmesg output from 3.1.0-2.3 taken on 2011-11-07

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

Alex Deucher  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution||DUPLICATE

--- Comment #3 from Alex Deucher  2011-10-30 12:13:22 UTC 
---
Should be fixed with this patch:
http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes=12d5180bd7e683a4ae80830b82ba67e7b7fac7b2

*** This bug has been marked as a duplicate of bug 40103 ***

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

Alex Deucher ag...@yahoo.com changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution||DUPLICATE

--- Comment #3 from Alex Deucher ag...@yahoo.com 2011-10-30 12:13:22 UTC ---
Should be fixed with this patch:
http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixesid=12d5180bd7e683a4ae80830b82ba67e7b7fac7b2

*** This bug has been marked as a duplicate of bug 40103 ***

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #2 from Kunal  2011-10-29 09:05:45 
PDT ---
Created attachment 52893
  --> https://bugs.freedesktop.org/attachment.cgi?id=52893
Xorg.log when it booted up fine

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #1 from Kunal  2011-10-29 09:05:02 
PDT ---
Created attachment 52892
  --> https://bugs.freedesktop.org/attachment.cgi?id=52892
lspci -vvnn output

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #1 from Kunal kunal.gangakhed...@gmail.com 2011-10-29 09:05:02 
PDT ---
Created attachment 52892
  -- https://bugs.freedesktop.org/attachment.cgi?id=52892
lspci -vvnn output

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[Bug 42373] Radeon HD 6450 (NI CAICOS) screen corruption on boot

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42373

--- Comment #2 from Kunal kunal.gangakhed...@gmail.com 2011-10-29 09:05:45 
PDT ---
Created attachment 52893
  -- https://bugs.freedesktop.org/attachment.cgi?id=52893
Xorg.log when it booted up fine

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