Hi,
Somewhere between:
03347e2592078a90df818670fddf97a33eec70fb (2.6.30 + 5415 commits)
and
c82e6d450fda56cb2d4f68534173d3cd11b32f9f (2.6.30 + 8722 commits)
my Laptop (Lenovo T500) with an Intel GM45 graphics card blanks display
during boot (before starting with initramfs) , stops responding to
anything (i.e. no caps-lock light) and shows no further activity (i.e.
no hdd activity).
Before the blank I did not see any sign of a backtrace or similar, but
its hard to say there wasn't any. Unfortunately atm I don't have another
computer nearby, so I could not get a network console output yet.
If you don't have a quick idea I will either get nearby another computer
to get a trace or start bisecting.
As you can see can see in the attached config I am using kernel based
modesetting - I will try disabling it during boot to see if there is a
difference.
Any other information needed?
Andres
PS: There are some other problems with this card and current kernels (no
real output on virtual consoles), but I will report that separately - I
am just mentioning this for completeness sake
On Thu, 25 Jun 2009 10:30:23 +0200
Andres Freund <[email protected]> wrote:
> Hi,
>
> Somewhere between:
> 03347e2592078a90df818670fddf97a33eec70fb (2.6.30 + 5415 commits)
> and
> c82e6d450fda56cb2d4f68534173d3cd11b32f9f (2.6.30 + 8722 commits)
> my Laptop (Lenovo T500) with an Intel GM45 graphics card blanks
> display during boot (before starting with initramfs) , stops
> responding to anything (i.e. no caps-lock light) and shows no further
> activity (i.e. no hdd activity).
>
> Before the blank I did not see any sign of a backtrace or similar,
> but its hard to say there wasn't any. Unfortunately atm I don't have
> another computer nearby, so I could not get a network console output
> yet.
So the i915 driver probably loaded and turned off your display, either
by programming a bad mode or misdetecting something else...
> Any other information needed?
Can you try loading the drm module with debug=1? That should give us
some more info about what's going on.
A bisect would help too of course...
--
Jesse Barnes, Intel Open Source Technology Center
On 06/25/2009 06:41 PM, Jesse Barnes wrote:
> On Thu, 25 Jun 2009 10:30:23 +0200
> Andres Freund<[email protected]> wrote:
>
>> Hi,
>>
>> Somewhere between:
>> 03347e2592078a90df818670fddf97a33eec70fb (2.6.30 + 5415 commits)
>> and
>> c82e6d450fda56cb2d4f68534173d3cd11b32f9f (2.6.30 + 8722 commits)
>> my Laptop (Lenovo T500) with an Intel GM45 graphics card blanks
>> display during boot (before starting with initramfs) , stops
>> responding to anything (i.e. no caps-lock light) and shows no further
>> activity (i.e. no hdd activity).
>>
>> Before the blank I did not see any sign of a backtrace or similar,
>> but its hard to say there wasn't any. Unfortunately atm I don't have
>> another computer nearby, so I could not get a network console output
>> yet.
>
> So the i915 driver probably loaded and turned off your display, either
> by programming a bad mode or misdetecting something else...
>
>> Any other information needed?
>
> Can you try loading the drm module with debug=1? That should give us
> some more info about what's going on.
Is the information from the failed or from the working boot interesting?
> A bisect would help too of course...
I am now in the middle of bisecting (currently at d888a4c) and
interestingly the original problem does not occur at that commit, but
the modes of my external monitor get misdiagnosed (no 1680x1050
resolution anymore) - the internal one works fine.
That happended somewhere between 0a4de47 and d888a4c. I will skip this
issue for now and keep bisecting the old issue.
Andres
On 06/25/2009 10:30 AM, Andres Freund wrote:
> Hi,
>
> Somewhere between:
> 03347e2592078a90df818670fddf97a33eec70fb (2.6.30 + 5415 commits)
> and
> c82e6d450fda56cb2d4f68534173d3cd11b32f9f (2.6.30 + 8722 commits)
> my Laptop (Lenovo T500) with an Intel GM45 graphics card blanks display
> during boot (before starting with initramfs) , stops responding to
> anything (i.e. no caps-lock light) and shows no further activity (i.e.
> no hdd activity).
>
> Before the blank I did not see any sign of a backtrace or similar, but
> its hard to say there wasn't any. Unfortunately atm I don't have another
> computer nearby, so I could not get a network console output yet.
>
> If you don't have a quick idea I will either get nearby another computer
> to get a trace or start bisecting.
I have not yet had access to another computer (so no trace yet) but I
bisected it to this very innocent looking commit:
1e4cffe78e1decd937c7b78410eec87da6b87954 : ACPI: video: convert to
acpi_get_pci_dev
Hope I added the correct CC's
Andres
PS: bad Headache + no tiredness is a good combination to do bisecting ;-)
* Andres Freund <[email protected]>:
> I have not yet had access to another computer (so no trace yet) but I
> bisected it to this very innocent looking commit:
> 1e4cffe78e1decd937c7b78410eec87da6b87954 : ACPI: video: convert to
> acpi_get_pci_dev
This has already been fixed in Linus's tree. Can you pull the
latest and try again?
Sorry for the inconvenience.
/ac
On 06/27/2009 06:43 AM, Alex Chiang wrote:
> * Andres Freund<[email protected]>:
>> I have not yet had access to another computer (so no trace yet) but I
>> bisected it to this very innocent looking commit:
>> 1e4cffe78e1decd937c7b78410eec87da6b87954 : ACPI: video: convert to
>> acpi_get_pci_dev
>
> This has already been fixed in Linus's tree. Can you pull the
> latest and try again?
Works as expected. Thanks.
Andres