[arrandale] When i upgraded to 10.10 the screen on my laptop(Gateway nv79) went completely black and I could not see anything unless I held a flashlight to the screen to see. The only way I am able to fix this is issue is by doing a system test. But as soon as my laptop goes to sleep it goes back to the black screen. I could not find another fix because once I did the system testing for 10.10 it would not allow me to do the testing again to fix it.

[jazz41408]

Binary package hint: xorg

My laptop screen is black until I run system check which is a temporary fix because when my laptop goes to sleep it goes back to black. I can only see things when I hold a flashlight to it.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-23.41-generic-pae 2.6.35.7
Uname: Linux 2.6.35-23-generic-pae i686
Architecture: i386
CheckboxSubmission: 243c0bd9647c0c813fca3e66304b31e5
CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
DRM.card0.DisplayPort.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI_Type_A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1600x900
 edid-base64: AP///////wAGr54QAAAAAAESAQOAJhV4CkUlnFtVnCcZUFQAAAABAQEBAQEBAQEBAQEBAQEBICtAkGGEFDBAKjMAftYQAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTczUlcwMSBWMCAKALs=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Sun Dec 5 22:32:53 2010
DkmsStatus:
 alsa-hda-realtek-ignore-sku, 1.0.23.diwic, 2.6.35-23-generic-pae, i686: installed
 alsa-hda-realtek-ignore-sku, 1.0.23.diwic, 2.6.32-26-generic-pae, i686: installed
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Gateway NV79
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-23-generic-pae root=UUID=cf10e6c4-846e-47be-95bb-dbd03b667706 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 01/05/2010
dmi.bios.vendor: Gateway
dmi.bios.version: V1.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NV79
dmi.board.vendor: Gateway
dmi.board.version: V1.05
dmi.chassis.type: 10
dmi.chassis.vendor: Gateway
dmi.chassis.version: V1.05
dmi.modalias: dmi:bvnGateway:bvrV1.05:bd01/05/2010:svnGateway:pnNV79:pvrV1.05:rvnGateway:rnNV79:rvrV1.05:cvnGateway:ct10:cvrV1.05:
dmi.product.name: NV79
dmi.product.version: V1.05
dmi.sys.vendor: Gateway
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: maverick
 architecture: i686
 kernel: 2.6.35-23-generic-pae

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 12) (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:031c]

[Daudi Amani (dsaronin)]

I have the same problem upgrading from 10.04 to 10.10 on my Gateway NV79. Booting with kernel 2.6.35-24 has this problem. Booting with 2.6.32.27 (the previous kernel for 10.04?) at least gets me back to a working display.

Here's a description of when the issue occurs during booting:
At first, for a while, a single "_" appears in the upper left of display. Then a single line status message appears very briefly (less than 1 second) and it is difficult to recall what it says .. something about intel and 0.0.0.0.

Then when the display goes black with an audible sound of a switch clicking .. same sound occurs during normal boot when it precedes the display showing a full xserver service occuring. I suspect that either the display chip has been turned off or (more likely) the display itself has been turned off (or just the backlight?).

I cannot figure out any other settings that I can adjust. Please advise a work-around or patch this quickly. Thanks!

[Daudi Amani (dsaronin)]

here's some further information from kern.log .. I believe that the message appearing just before back light is turned off, is starred below:

Jan 16 20:10:02 uziwa kernel: [ 18.059419] intel ips 0000:00:1f.6: Warning: CPU TDP doesn't match expected value (found 25, expected 35)
Jan 16 20:10:02 uziwa kernel: [ 18.059446] alloc irq_desc for 21 on node -1
Jan 16 20:10:02 uziwa kernel: [ 18.059450] alloc kstat_irqs on node -1
Jan 16 20:10:02 uziwa kernel: [ 18.059460] intel ips 0000:00:1f.6: PCI INT A -> GSI 21 (level, low) -> IRQ 21

*** Jan 16 20:10:02 uziwa kernel: [ 18.059669] intel ips 0000:00:1f.6: failed to get i915 symbols, graphics turbo disabled

Jan 16 20:10:02 uziwa kernel: [ 18.062036] intel ips 0000:00:1f.6: IPS driver initialized, MCP temp limit 65535

[Daudi Amani (dsaronin)]

weird but effective workaround: Do this in a working displayable kernel (for me: 2.6.32-27):
system > preferences > power management
"On AC Power" tab; "DISPLAY" section: "set display brightness to:" change from 100% to 85%.
then reboot to kernel 2.6.35-24 .. and the backlight is on and everything displays great!

BTW: I was referencing http://forums.opensuse.org/english/get-help-here/install-boot-login/449999-black-screen-boot-surprise.html thread thinking that it is a power management issue.

[Daudi Amani (dsaronin)]

further update on that work-around: works as long as laptop doesn't become suspend or idle .. (or closing the lid). after that, reverts back to backlight off when linux is restored. can't figure out a way around that one (sigh).

[Daudi Amani (dsaronin)]

Latest kernel update to 2.6.35-27 still has same issue .. is anyone seeing this issue? Four kernel upgrades have occurred since the NV79 Backlight power off issue has been logged? Is this the wrong forum for these issues?? I would like to use the later kernels but cannot because the LIGHTS ARE OFF on the display. It worked on kernel 2.6.32.27 .. so it has got to be something simple that was changed.

[Daudi Amani (dsaronin)]

(seems like i'm just talking to myself...) Tried hooking up external monitor and booting from kernel 2.6.35-27 .. worked fine. laptop display shows, external monitor display shows. close lid, suspend, open lid, resume, everything still fine. BUT .. remove the external monitor (while still booted): laptop displays great. but then close lid -> suspend; open lid -> resume, and backlight briefly on but then gets turned off (display barely visible with bright flashlight). Hook up external monitor again, click System>preferences>monitors, and voila, display's backlight is turned on while mirroring displays with external monitor. This should be a very very easy fix .. could some one fix it please???

[Eduardo Martinez Rodriguez (eduardo-mtz-rdz)]

I also have the same problem, i need to hook up an external monitor when i boot my laptop, I own nv79 with an intel i5 intel 4 ram, iIalso read this bug description but it doesn't apply to my bug, https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/702090. i also read this other discussion https://bugs.launchpad.net/ubuntu/+source/linux/+bug/705949 and install the ppa but it doesnt affect the result, i also tried the work around going to system /power management/ display reducing from 100 percent to 85, but it also didnt work, i also check this other tread https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/685727 but i couldnt find a solution there. I also have the kernel 2.6.35-27 it work fine,, the only problem is the backligth. sorry for my crappy english Im Mexican

[bugbot (bugbot)]

Hey jazz41408,

Thanks for your interest in Ubuntu.

Thanks for testing maverick during its development period. Unfortunately it looks like this bug report didn't get attention during the maverick development period. But I see there's not been more comments on the bug since the release, which makes me wonder if this is still an issue for you?

If you've not seen this issue since maverick's release yourself, it may have been solved by kernel or X or other updates that occurred late in the release; if so, would you mind please closing the bug for us? Go to the URL mentioned in this bug report, click the yellow icon(s) in the status column and set to 'Fix Released'.

If you no longer have the hardware needed to reproduce the problem, or otherwise feel the bug no longer needs tracked in Launchpad, you can set the status to 'Invalid'.

If you are the original reporter and still have this issue, just reply to this email saying so. (Or set the bug status to Confirmed.) If you are able to re-test this against 11.04 Natty Narwhal (our current development focus) and find the issue still affects Natty, please also run 'apport-collect <bug-number>' while running natty, which will add fresh logs and debug data, and flag it for the Ubuntu-X development team to look at.

[bugbot (bugbot)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.

[Daudi Amani (dsaronin)]

THIS IS ABSOLUTELY CRAZY TO CLOSE THIS BUG OUT!
IT STILL EXISTS WITHIN UBUNTU 11.04 (NATTY). WE HAVE BEEN WAITING MONTHS MONTHS MONTHS FOR ANYONE TO COMMENT ON THIS, RESPOND TO US, OR FIX IT. EVERYTHING WORKED GREAT INITIALLY IN 10.04 UNTIL THE 10.10 UPGRADE. WE'RE NOT ASKING FOR NEW DEVELOPMENT, JUST FIND THE CODE WHICH DID WORK AND RESTORE THOSE SETTINGS TO 10.10, 11.04, ETC GOING FORWARD. I CANNOT UPGRADE WITHOUT THIS FIX.

[jazz41408 (newviolinist)]

close it

On Wed, Jun 15, 2011 at 2:41 AM, Daudi Amani <email address hidden>wrote:

> THIS IS ABSOLUTELY CRAZY TO CLOSE THIS BUG OUT!
> IT STILL EXISTS WITHIN UBUNTU 11.04 (NATTY). WE HAVE BEEN WAITING MONTHS
> MONTHS MONTHS FOR ANYONE TO COMMENT ON THIS, RESPOND TO US, OR FIX IT.
> EVERYTHING WORKED GREAT INITIALLY IN 10.04 UNTIL THE 10.10 UPGRADE. WE'RE
> NOT ASKING FOR NEW DEVELOPMENT, JUST FIND THE CODE WHICH DID WORK AND
> RESTORE THOSE SETTINGS TO 10.10, 11.04, ETC GOING FORWARD. I CANNOT UPGRADE
> WITHOUT THIS FIX.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/685727
>
> Title:
> [arrandale] When i upgraded to 10.10 the screen on my laptop(Gateway
> nv79) went completely black and I could not see anything unless I held
> a flashlight to the screen to see. The only way I am able to fix this
> is issue is by doing a system test. But as soon as my laptop goes to
> sleep it goes back to the black screen. I could not find another fix
> because once I did the system testing for 10.10 it would not allow me
> to do the testing again to fix it.
>
> Status in “xserver-xorg-video-intel” package in Ubuntu:
> Expired
>
> Bug description:
> Binary package hint: xorg
>
> My laptop screen is black until I run system check which is a
> temporary fix because when my laptop goes to sleep it goes back to
> black. I can only see things when I hold a flashlight to it.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 10.10
> Package: xorg 1:7.5+6ubuntu3
> ProcVersionSignature: Ubuntu 2.6.35-23.41-generic-pae 2.6.35.7
> Uname: Linux 2.6.35-23-generic-pae i686
> Architecture: i386
> CheckboxSubmission: 243c0bd9647c0c813fca3e66304b31e5
> CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
> DRM.card0.DisplayPort.1:
> status: disconnected
> enabled: disabled
> dpms: Off
> modes:
> edid-base64:
> DRM.card0.HDMI_Type_A.1:
> status: disconnected
> enabled: disabled
> dpms: Off
> modes:
> edid-base64:
> DRM.card0.LVDS.1:
> status: connected
> enabled: enabled
> dpms: On
> modes: 1600x900
> edid-base64:
> AP///////wAGr54QAAAAAAESAQOAJhV4CkUlnFtVnCcZUFQAAAABAQEBAQEBAQEBAQEBAQEBICtAkGGEFDBAKjMAftYQAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTczUlcwMSBWMCAKALs=
> DRM.card0.VGA.1:
> status: disconnected
> enabled: disabled
> dpms: Off
> modes:
> edid-base64:
> Date: Sun Dec 5 22:32:53 2010
> DkmsStatus:
> alsa-hda-realtek-ignore-sku, 1.0.23.diwic, 2.6.35-23-generic-pae, i686:
> installed
> alsa-hda-realtek-ignore-sku, 1.0.23.diwic, 2.6.32-26-generic-pae, i686:
> installed
> InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
> MachineType: Gateway NV79
> ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-23-generic-pae
> root=UUID=cf10e6c4-846e-47be-95bb-dbd03b667706 ro quiet splash
> ProcEnviron:
> LANG=en_US.utf8
> SHELL=/bin/bash
> SourcePackage: xorg
> Symptom: display
> dmi.bios.date: 01/05/2010
> dmi.bios.vendor: Gateway
> dmi.bios.version: V1.05
> dmi.board.asset.tag: Base Board Asset Tag
> dmi.board.name: NV79
> dmi.board.vendor: Gateway
> dmi.board.version: V1...

[Daudi Amani (dsaronin)]

Hi, thank you for your follow up. When you say "close it" do you mean
that a solution, work-around, or bug fix exists? Please tell me where to
find that solution/fix, because I have been unsuccessful with all
Maverick 10.10 upgrades and the latest Natty 11.04. I would very much
like to upgrade my laptop from Lucid 10.04, but this backlight turned
off issue is preventing me from doing that.
Thank you for your assistance,

On Wed, 2011-06-15 at 22:22 +0000, jazz41408 wrote:

> close it
>
> On Wed, Jun 15, 2011 at 2:41 AM, Daudi Amani
> <email address hidden>wrote:
>
> > THIS IS ABSOLUTELY CRAZY TO CLOSE THIS BUG OUT!
> > IT STILL EXISTS WITHIN UBUNTU 11.04 (NATTY). WE HAVE BEEN WAITING MONTHS
> > MONTHS MONTHS FOR ANYONE TO COMMENT ON THIS, RESPOND TO US, OR FIX IT.
> > EVERYTHING WORKED GREAT INITIALLY IN 10.04 UNTIL THE 10.10 UPGRADE. WE'RE
> > NOT ASKING FOR NEW DEVELOPMENT, JUST FIND THE CODE WHICH DID WORK AND
> > RESTORE THOSE SETTINGS TO 10.10, 11.04, ETC GOING FORWARD. I CANNOT UPGRADE
> > WITHOUT THIS FIX.
> >
> > --
> > You received this bug notification because you are subscribed to the bug
> > report.
> > https://bugs.launchpad.net/bugs/685727
> >
> > Title:
> > [arrandale] When i upgraded to 10.10 the screen on my laptop(Gateway
> > nv79) went completely black and I could not see anything unless I held
> > a flashlight to the screen to see. The only way I am able to fix this
> > is issue is by doing a system test. But as soon as my laptop goes to
> > sleep it goes back to the black screen. I could not find another fix
> > because once I did the system testing for 10.10 it would not allow me
> > to do the testing again to fix it.
> >
> > Status in “xserver-xorg-video-intel” package in Ubuntu:
> > Expired
> >
> > Bug description:
> > Binary package hint: xorg
> >
> > My laptop screen is black until I run system check which is a
> > temporary fix because when my laptop goes to sleep it goes back to
> > black. I can only see things when I hold a flashlight to it.
> >
> > ProblemType: Bug
> > DistroRelease: Ubuntu 10.10
> > Package: xorg 1:7.5+6ubuntu3
> > ProcVersionSignature: Ubuntu 2.6.35-23.41-generic-pae 2.6.35.7
> > Uname: Linux 2.6.35-23-generic-pae i686
> > Architecture: i386
> > CheckboxSubmission: 243c0bd9647c0c813fca3e66304b31e5
> > CheckboxSystem: 090f50ffa15f2babaae2e4e2bf775960
> > DRM.card0.DisplayPort.1:
> > status: disconnected
> > enabled: disabled
> > dpms: Off
> > modes:
> > edid-base64:
> > DRM.card0.HDMI_Type_A.1:
> > status: disconnected
> > enabled: disabled
> > dpms: Off
> > modes:
> > edid-base64:
> > DRM.card0.LVDS.1:
> > status: connected
> > enabled: enabled
> > dpms: On
> > modes: 1600x900
> > edid-base64:
> > AP///////wAGr54QAAAAAAESAQOAJhV4CkUlnFtVnCcZUFQAAAABAQEBAQEBAQEBAQEBAQEBICtAkGGEFDBAKjMAftYQAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTczUlcwMSBWMCAKALs=
> > DRM.card0.VGA.1:
> > status: disconnected
> > enabled: disabled
> > dpms: Off
> > modes:
> > edid-base64:
> > Date: Sun Dec 5 22:32:53 2010
> > DkmsStatus:
> > alsa-hda-realtek-ignore-sku, 1.0.23.diwic, 2.6.35-23-generic-pae, i686:
> > installed
>...