Screen goes blank @30 seconds into boot

Screen goes blank @30 seconds into boot

[Joel Heaton]

System: Dell Inspiron One
Chipset: intel H61 Express
CPU: Intel Pentium Dual Core Intel Core i3/i5i7 (this machine is
probably an i3
Video: Intel HD/HD 2000/HD 3000
Max Resolution: 1920x1080
OS-1 Windows 7 (shipped with this OS)
OS-2 Debian Sid liquorix kernel 3.2
	DE: lxde no DM  I start x manually
=========================================
When booting the screen goes blank about 80% through the boot cycle.
The system is still running, I can log in blind and execute reboot
command.
I ssh into the system from another computer.
kern.log reports "Firmware Bug: ACPI: No _BQC method, cannot determine
initial brightness"
inxi -Fxx reports Drivers: (vesa, intel (unloaded: fbdev) Resolution
1280x1024@76.0hz
sporadically, I get a good boot, maybe once in 20 tries.
I have no xorg.conf

Re: HD {, 2000, 3000}: Screen goes blank @30 seconds into boot

[Paul Menzel]

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Dear Joel,


Am Donnerstag, den 26.01.2012, 06:54 -0500 schrieb Joel Heaton:
> System: Dell Inspiron One
> Chipset: intel H61 Express
> CPU: Intel Pentium Dual Core Intel Core i3/i5i7 (this machine is
> probably an i3
> Video: Intel HD/HD 2000/HD 3000
> Max Resolution: 1920x1080
> OS-1 Windows 7 (shipped with this OS)
> OS-2 Debian Sid liquorix kernel 3.2
> 	DE: lxde no DM  I start x manually
> =========================================
> When booting the screen goes blank about 80% through the boot cycle.

I guess Windows 7 works? Please also submit a bug report to the Debian
BTS for example using `reportbug` against the Linux kernel package.

> The system is still running, I can log in blind and execute reboot
> command.
> I ssh into the system from another computer.
> kern.log reports "Firmware Bug: ACPI: No _BQC method, cannot determine initial brightness"
> inxi -Fxx reports Drivers: (vesa, intel (unloaded: fbdev) Resolution 1280x1024@76.0hz
> sporadically, I get a good boot, maybe once in 20 tries.
> I have no xorg.conf

I think the developers need the information listed at [1]. Being able to
log in using SSH it should not be a problem for you to get the
information.


Thanks,

Paul


[1] http://intellinuxgraphics.org/how_to_report_bug.html

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Re: HD {, 2000, 3000}: Screen goes blank @30 seconds into boot

[Daniel Vetter]

On Thu, Jan 26, 2012 at 02:19:47PM +0100, Paul Menzel wrote:
> Am Donnerstag, den 26.01.2012, 06:54 -0500 schrieb Joel Heaton:
> > System: Dell Inspiron One
> > Chipset: intel H61 Express
> > CPU: Intel Pentium Dual Core Intel Core i3/i5i7 (this machine is
> > probably an i3
> > Video: Intel HD/HD 2000/HD 3000
> > Max Resolution: 1920x1080
> > OS-1 Windows 7 (shipped with this OS)
> > OS-2 Debian Sid liquorix kernel 3.2
> > 	DE: lxde no DM  I start x manually
> > =========================================
> > When booting the screen goes blank about 80% through the boot cycle.
> 
> I guess Windows 7 works? Please also submit a bug report to the Debian
> BTS for example using `reportbug` against the Linux kernel package.
> 
> > The system is still running, I can log in blind and execute reboot
> > command.
> > I ssh into the system from another computer.
> > kern.log reports "Firmware Bug: ACPI: No _BQC method, cannot determine initial brightness"
> > inxi -Fxx reports Drivers: (vesa, intel (unloaded: fbdev) Resolution 1280x1024@76.0hz
> > sporadically, I get a good boot, maybe once in 20 tries.
> > I have no xorg.conf
> 
> I think the developers need the information listed at [1]. Being able to
> log in using SSH it should not be a problem for you to get the
> information.

Yeah, this doesn't sound good. Please file a but as detailed in the link
posted by Paul. Or ask us on irc, #intel-gfx on the Freenode network. We
could then guide you how to dig up the required information and check
whether your issue is already tracked (and maybe there's even a patch for
it).

> [1] http://intellinuxgraphics.org/how_to_report_bug.html

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48

Re: Screen goes blank @30 seconds into boot

[Keith Packard]

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On Thu, 26 Jan 2012 06:54:48 -0500, Joel Heaton <jheaton5@comcast.net> wrote:
> System: Dell Inspiron One
> Chipset: intel H61 Express
> CPU: Intel Pentium Dual Core Intel Core i3/i5i7 (this machine is
> probably an i3
> Video: Intel HD/HD 2000/HD 3000
> Max Resolution: 1920x1080
> OS-1 Windows 7 (shipped with this OS)
> OS-2 Debian Sid liquorix kernel 3.2
> 	DE: lxde no DM  I start x manually
> =========================================
> When booting the screen goes blank about 80% through the boot cycle.
> The system is still running, I can log in blind and execute reboot
> command.

Is the monitor backlight on or off? If off, can you try finding a bright
light and shining it on the monitor to see if the image is present, but
the backlight simply disabled?

> I ssh into the system from another computer.
> kern.log reports "Firmware Bug: ACPI: No _BQC method, cannot determine
> initial brightness"

The last bug we saw with this was a system that did leave the monitor
off. Here's a patch that fixed that machine:

Keith Packard <keithp@keithp.com> (December 31) (lkml me patch sent)
Subject: [PATCH] acpi/video: Don't restore backlight to 0 at boot time
To: linux-kernel@vger.kernel.org
Cc: Keith Packard <keithp@keithp.com>, Bdale Garbee <bdale@gag.com>, Matthew Garrett <mjg@redhat.com>
Date: Sat, 31 Dec 2011 00:52:27 -0800

If the initial ACPI reported backlight level is zero, or larger than
max_level, then ignore it and set the level back to the current level
instead. This avoids ending up with a black screen on an HP Pavilion
G series G4 notebook QE040UA#ABA.

Reported-by: Bdale Garbee <bdale@gag.com>
Cc: Bdale Garbee <bdale@gag.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
---
 drivers/acpi/video.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 08a44b5..688f342 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -711,7 +711,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
		 * when invoked for the first time, i.e. level_old is invalid.
		 * set the backlight to max_level in this case
		 */
-		if (use_bios_initial_backlight) {
+		if (use_bios_initial_backlight && 0 < level_old && level_old <= max_level) {
			for (i = 2; i < br->count; i++)
				if (level_old == br->levels[i])
					level = level_old;
-- 
1.7.7.3

-- 
keith.packard@intel.com

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Re: Screen goes blank @30 seconds into boot

[Jonathan Nieder]

(resending after subscription to appease list spam filter.
 Keith and Joel, sorry for the duplicate message)
Hi intel-gfx list,

Keith Packard wrote:
> On Thu, 26 Jan 2012 06:54:48 -0500, Joel Heaton <jheaton5@comcast.net> wrote:

>> System: Dell Inspiron One
>> Chipset: intel H61 Express
>> CPU: Intel Pentium Dual Core Intel Core i3/i5i7 (this machine is
>> probably an i3
>> Video: Intel HD/HD 2000/HD 3000
[...]
>> When booting the screen goes blank about 80% through the boot cycle.
>> The system is still running, I can log in blind and execute reboot
>> command.
>
> Is the monitor backlight on or off? If off, can you try finding a bright
> light and shining it on the monitor to see if the image is present, but
> the backlight simply disabled?

Interesting question.  Joel?

>> I ssh into the system from another computer.
>> kern.log reports "Firmware Bug: ACPI: No _BQC method, cannot determine
>> initial brightness"
>
> The last bug we saw with this was a system that did leave the monitor
> off. Here's a patch that fixed that machine:
>
> Keith Packard <keithp@keithp.com> (December 31) (lkml me patch sent)
> Subject: [PATCH] acpi/video: Don't restore backlight to 0 at boot time

No change, alas, when Joel tried this patch[1]:

| I made the change by editing drivers/acpi/video.c but the bug is
| recreated.

Cherry-picking commit 7885d2052bd ("drm/i915: mask transcoder select
bits before setting them on LVDS") did not help either.  More details
including some kernel logs and an acpidump at [1].

Thanks and hope that helps,
Jonathan

[1] http://bugs.debian.org/660394

Re: Screen goes blank @30 seconds into boot

[jheaton5]

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----- Original Message -----
From: "Jonathan Nieder" <jrnieder@gmail.com> 
To: "Keith Packard" <keithp@keithp.com> 
Cc: "Joel Heaton" <jheaton5@comcast.net>, intel-gfx@lists.freedesktop.org 
Sent: Wednesday, February 22, 2012 6:03:08 AM 
Subject: Re: Screen goes blank @30 seconds into boot 

(resending after subscription to appease list spam filter. 
Keith and Joel, sorry for the duplicate message) 
Hi intel-gfx list, 

Keith Packard wrote: 
> On Thu, 26 Jan 2012 06:54:48 -0500, Joel Heaton <jheaton5@comcast.net> wrote: 

>> System: Dell Inspiron One 
>> Chipset: intel H61 Express 
>> CPU: Intel Pentium Dual Core Intel Core i3/i5i7 (this machine is 
>> probably an i3 
>> Video: Intel HD/HD 2000/HD 3000 
[...] 
>> When booting the screen goes blank about 80% through the boot cycle. 
>> The system is still running, I can log in blind and execute reboot 
>> command. 
> 
> Is the monitor backlight on or off? If off, can you try finding a bright 
> light and shining it on the monitor to see if the image is present, but 
> the backlight simply disabled? 

Interesting question. Joel? 
Sorry about not answering this question. I do not see the image on the screen with a bright light. 

>> I ssh into the system from another computer. 
>> kern.log reports "Firmware Bug: ACPI: No _BQC method, cannot determine 
>> initial brightness" 
> 
> The last bug we saw with this was a system that did leave the monitor 
> off. Here's a patch that fixed that machine: 
> 
> Keith Packard <keithp@keithp.com> (December 31) (lkml me patch sent) 
> Subject: [PATCH] acpi/video: Don't restore backlight to 0 at boot time 

No change, alas, when Joel tried this patch[1]: 

| I made the change by editing drivers/acpi/video.c but the bug is 
| recreated. 

Cherry-picking commit 7885d2052bd ("drm/i915: mask transcoder select 
bits before setting them on LVDS") did not help either. More details 
including some kernel logs and an acpidump at [1]. 

Thanks and hope that helps, 
Jonathan 

[1] http://bugs.debian.org/660394 

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