monitor drops to standby with "no signal" during boot splash on luicd

Bug #529234 reported by wandlerer
22
This bug affects 4 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

During the boot of Lucid alpha 3, the monitor loses signal after the grub menu, and before KDE starts, dropping into standby mode and displaying "no signal".

Video card is nvidia GeForce 7300 GS.

The install was with an encrypted drive, meaning the passphrase prompt is never seen by the user, or any other user input prior to the KDE login prompt.

Turning off quiet and splash in grub has no effect. Using "nomodeset" shows the boot process, and the query for the passphrase, but won't boot KDE. x fails to start in that condition, and logins to the console take over 30 seconds to respond with a prompt. startx also fails with errors.

The 64 bit alternate install of Lucid alpha 3 actually completed successfully, but booting into the actual system requires me to wait until disk activity halts, then I wait a little more to make sure the prompt for the passphrase is settled, and then I enter the passphrase to a blank screen, and then KDE will come up. The monitor gets a signal when KDE starts, but not during the booting of the kernel.

With my system, any kernel boots of Lucid alpha 3 [liveCD, installs without encryption, installs with encryption] using the graphical boot system results in a period of monitor standby. Only when KDE starts does the monitor resume.

tags: added: iso-testing
Revision history for this message
wandlerer (jwandler) wrote :

I just tried the i386 LiveCD of Kubuntu 10.04 alpha 3.

Starting with a normal livecd boot, the 'ubuntu' splash screen shows up without any loss of signal to the monitor. After a while, there is a small transition where the monitor goes "out of frequency", possibly due to testing settings. Then KDE appears and all is well.

With the "quiet splash" options removed, the splash screen does not appear, and the monitor does go to standby with the "no signal" message. This happens after the initial 4 or so seconds of the boot process appearing on the screen, which then flashes a green background, and then goes blank. This is when the "no signal" message appears on the monitor. After it continues through the boot process, the 'ubuntu' splash image shows up briefly, just before the "out of frequency" message, and then KDE appears. The monitor is in standby about 15 seconds.

I have tried both the DVI and VGA outputs on the video card, and both times the results were the same. I tried both at the same time too, and both monitors responded identically.

Revision history for this message
wandlerer (jwandler) wrote :

I tested the i386 livecd on a laptop with intel graphics, and the 'ubuntu' splash screen came up [using a Lucid kubuntu cd] and kde started, without any apparent hiccups with the video.

I then did an install, and the splash screen again showed up, followed by kde.

One interesting thing I found was that with using just the laptop screen, the boot time was about 12 seconds or so. When I added an external monitor to the vga port of the laptop, the boot time went up to about 45 seconds. It stalled dramatically at some point, which leads me to think it was confused by the monitor settings, graphics hardware, or something like that.

This may have also happened with the encrypted install with no splash screen. With one monitor connected to the nvidia card, I could enter the passphrase at about 15 seconds and the boot would continue. With two monitors connected, I couldn't get the system to boot - but I didn't wait an extra 30 to 40 seconds either. I would type the passphrase at about 15 seconds, but nothing would happen - probably because something was stalled. Waiting longer might work - but without any prompts, it is very difficult to know what is happening and when exactly the passphrase is needed.

affects: ubuntu → plymouth (Ubuntu)
Revision history for this message
Steve Langasek (vorlon) wrote : Re: [Bug 529234] Re: monitor drops to standby with "no signal" during boot splash on luicd alpha 3

On Tue, Mar 09, 2010 at 01:42:27AM -0000, Gabe Gorelick wrote:
> ** Package changed: ubuntu => plymouth (Ubuntu)

> --
> monitor drops to standby with "no signal" during boot splash on luicd alpha 3

This is clearly not a plymouth bug. Plymouth isn't going to cause the
kernel to drive the video card incorrectly! Reassigning to the kernel.

--
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
Ubuntu Developer http://www.debian.org/
<email address hidden> <email address hidden>

affects: plymouth (Ubuntu) → linux (Ubuntu)
Revision history for this message
Gabe Gorelick (gabegorelick) wrote : Re: monitor drops to standby with "no signal" during boot splash on luicd alpha 3

Ah, you are correct. I guess I saw "boot splash" and just put it into plymouth without thinking. My bad.

tags: added: kernel-series-unknown
tags: added: lucid
removed: kernel-series-unknown
Revision history for this message
Jeremy Foshee (jeremyfoshee) wrote :

Hi wandlerer,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 529234

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: needs-kernel-logs
tags: added: needs-upstream-testing
tags: added: kj-triage
Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
wandlerer (jwandler) wrote : Re: [Bug 529234] Re: monitor drops to standby with "no signal" during boot splash on luicd alpha 3

I will try with the current daily build - as of 4/26, and let you know
what the results are.

On Mon, Apr 26, 2010 at 3:54 PM, Jeremy Foshee
<email address hidden> wrote:
> Hi wandlerer,
>
> This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu?  ISO CD images are available from http://cdimage.ubuntu.com/releases/ .
>
> If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal).  It will automatically gather and attach updated debug information to this report.
>
> apport-collect -p linux 529234
>
> Also, if you could test the latest upstream kernel available that would be great.  It will allow additional upstream developers to examine the issue.  Refer to https://wiki.ubuntu.com/KernelMainlineBuilds .  Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag.  This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.  Please let us know your results.
>
> Thanks in advance.
>
>    [This is an automated message.  Apologies if it has reached you inappropriately; please just reply to this message indicating so.]
>
>
> ** Tags added: needs-kernel-logs
>
> ** Tags added: needs-upstream-testing
>
> ** Tags added: kj-triage
>
> ** Changed in: linux (Ubuntu)
>       Status: New => Incomplete
>
> --
> monitor drops to standby with "no signal" during boot splash on luicd alpha 3
> https://bugs.launchpad.net/bugs/529234
> You received this bug notification because you are a direct subscriber
> of the bug.
>

Revision history for this message
wandlerer (jwandler) wrote : Re: monitor drops to standby with "no signal" during boot splash on luicd alpha 3

The progress since Alpha 3 seems to have fixed it for me.

I booted the 4/26 amd64 liveCD, and the monitor maintained the signal during the boot, and then I installed the amd64 alternate from 4/22 and that also came up fine during the boot and passphrase screens.

Changed in linux (Ubuntu):
status: Incomplete → Fix Released
Chris (iamond98)
summary: monitor drops to standby with "no signal" during boot splash on luicd
- alpha 3
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