[snb-m-gt2] Booting with external monitor fails with *ERROR* Couldn't find PLL settings for mode!

Bug #814895 reported by Eugene Lipchansky
58
This bug affects 11 people
Affects Status Importance Assigned to Milestone
xf86-video-intel
Fix Released
High
xserver-xorg-video-intel (Ubuntu)
Fix Released
High
Unassigned

Bug Description

Ubuntu 11.04 Natty
 2.6.38-10.46-generic 2.6.38.7

Ubuntu hangs after grub when an external monitor connected to ASUS N73SV via HDMI or VGA.

Xorg.0.log ends with:
[ 6.501] (==) intel(0): Silken mouse enabled
[ 6.501] (II) intel(0): Initializing HW Cursor
[ 6.507] (EE) intel(0): failed to set mode: Invalid argument
[ 6.507]
Fatal server error:
[ 6.507] AddScreen/ScreenInit failed for driver 0

The syslog contains following lines:

Jul 21 13:07:34 ubuntu kernel: [ 10.042002] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.042005] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.047336] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.047340] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.047343] [drm:drm_fb_helper_restore] *ERROR* Failed to restore crtc configuration
Jul 21 13:07:34 ubuntu kernel: [ 10.068582] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.068585] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.068771] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.068772] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.068774] detected fb_set_par error, error code: -22
Jul 21 13:07:34 ubuntu kernel: [ 10.068811] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.068812] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.072990] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.072992] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.082137] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Jul 21 13:07:34 ubuntu kernel: [ 10.084215] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
Jul 21 13:07:34 ubuntu kernel: [ 10.086281] [drm:drm_fb_helper_restore] *ERROR* Failed to restore crtc configuration

And from kern.log:
Nov 29 18:54:28 asus kernel: [ 6.878504] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
Nov 29 18:54:28 asus kernel: [ 6.878506] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]

With the HDMI/VGA disconnected Ubuntu starts fine. After Ubuntu completely loaded the external display can be
connected without problems. At this time it is detected properly and works perfect. The desktop is shared fine to it.
i.e each time I turn it on I have to disconnect external display, wait until Ubuntu login screen displayed, then connect
the external display again.
---
ApportVersion: 1.23-0ubuntu4
Architecture: amd64DistroRelease: Ubuntu 11.10
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
Package: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Tags: oneiric
Uname: Linux 3.0.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout fuse lpadmin plugdev sambashare vboxusers
---
ApportVersion: 1.23-0ubuntu4
Architecture: amd64DistroRelease: Ubuntu 11.10
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
Package: xorg 1:7.6+7ubuntu7
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Tags: oneiric
Uname: Linux 3.0.0-13-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout fuse lpadmin plugdev sambashare vboxusers

Revision history for this message
Eugene Lipchansky (nsky) wrote :
Revision history for this message
Fabio Marconi (fabiomarconi) wrote :

Hello
Are you experiencing again this problems with the latest updates?
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

Changed in ubuntu:
status: New → Incomplete
Revision history for this message
Eugene Lipchansky (nsky) wrote :

It is still problem on freshly installed 11.10 with standard kernel (including all available updates).
It is not only me who is experiencing this problem. See here under the "HDMI Support" header: https://help.ubuntu.com/community/Asus_N53
Tell me if any additional information should be attached.

affects: ubuntu → xorg (Ubuntu)
Changed in xorg (Ubuntu):
status: Incomplete → New
Revision history for this message
Eugene Lipchansky (nsky) wrote : Re: Ubuntu won't load with external monitor connected on ASUS N73SV laptop. Dual monitor bug.

Error message on the Oneiric is following:

eugene@asus:~$ cat /var/log/dmesg.0 | grep drm
[ 5.382653] [drm] Initialized drm 1.1.0 20060810
[ 5.494847] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 5.494849] [drm] Driver supports precise vblank timestamp query.
[ 5.515520] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed
[ 5.516134] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed
[ 5.835280] fbcon: inteldrmfb (fb0) is primary device
[ 5.835387] fb0: inteldrmfb frame buffer device
[ 5.835388] drm: registered panic notifier
[ 5.948707] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[ 6.008603] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
[ 6.008609] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
[ 6.177784] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
[ 6.177789] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
[ 6.343555] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
[ 6.343559] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
[ 6.405823] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
[ 6.405827] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]

Actual display configuration that works after reconnecting external monitor:

eugene@asus:~$ xrandr
Screen 0: minimum 320 x 200, current 3600 x 1080, maximum 8192 x 8192
LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 382mm x 215mm
   1920x1080 60.0*+ 59.9
   1680x1050 60.0 59.9
   1600x1024 60.2
   1400x1050 60.0
   1280x1024 60.0
   1440x900 59.9
   1280x960 60.0
   1360x768 59.8 60.0
   1152x864 60.0
   1024x768 60.0
   800x600 60.3 56.2
   640x480 59.9
VGA1 connected 1680x1050+1920+0 (normal left inverted right x axis y axis) 474mm x 296mm
   1680x1050 60.0*+
   1280x1024 75.0 60.0
   1280x960 60.0
   1152x864 75.0
   1024x768 75.1 70.1 60.0
   832x624 74.6
   800x600 72.2 75.0 60.3 56.2
   640x480 72.8 75.0 66.7 60.0
   720x400 70.1
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)

summary: - Ubuntu won't load with external monitor connected on ASUS N73SV laptop
+ Ubuntu won't load with external monitor connected on ASUS N73SV laptop.
+ Dual monitor bug.
Revision history for this message
Bryce Harrington (bryce) wrote : Re: Ubuntu won't load with external monitor connected on ASUS N73SV laptop. Dual monitor bug. *ERROR* Couldn't find PLL settings for mode!

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command in a terminal after reproducing the issue, and it it will automatically gather debugging information needed for this bug:

  apport-collect 814895

affects: xorg (Ubuntu) → xserver-xorg-video-intel (Ubuntu)
Changed in xserver-xorg-video-intel (Ubuntu):
importance: Undecided → High
tags: added: natty oneiric
summary: Ubuntu won't load with external monitor connected on ASUS N73SV laptop.
- Dual monitor bug.
+ Dual monitor bug. *ERROR* Couldn't find PLL settings for mode!
Changed in xserver-xorg-video-intel (Ubuntu):
status: New → Incomplete
Revision history for this message
Eugene Lipchansky (nsky) wrote :

Thanks for your reply.
I can't use "apport-collect 814895" as after filling in the email and password the text-mode browser shows an error:

No REFERER Header
Launchpad requires a REFERER header to perform this action....

I'm not sure how to avoid this...

Revision history for this message
Fabio Marconi (fabiomarconi) wrote :

Hello Eugene
Yes, is a known problem, bug 560246 , so please temporarily disable all noref or no referrer plugins installed on your browser and authorize when request, then run again the above command
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

bugbot (bugbot)
tags: added: dual-head
Revision history for this message
Eugene Lipchansky (nsky) wrote : Dependencies.txt

apport information

tags: added: apport-collected
description: updated
Revision history for this message
Eugene Lipchansky (nsky) wrote : ProcEnviron.txt

apport information

Revision history for this message
Eugene Lipchansky (nsky) wrote : Re: Ubuntu won't load with external monitor connected on ASUS N73SV laptop. Dual monitor bug. *ERROR* Couldn't find PLL settings for mode!

Finally succeed to do apport-collect. I hope I've done it correct and information is sufficient.

Revision history for this message
Fabio Marconi (fabiomarconi) wrote :

Hello eugene
Sorry but something goes wrong
Please this time try with
apport-collect -p xorg 814895
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

Revision history for this message
Eugene Lipchansky (nsky) wrote : Dependencies.txt

apport information

description: updated
Revision history for this message
Eugene Lipchansky (nsky) wrote : ProcEnviron.txt

apport information

Revision history for this message
michiel (michiel-klaproos) wrote : Re: Ubuntu won't load with external monitor connected on ASUS N73SV laptop. Dual monitor bug. *ERROR* Couldn't find PLL settings for mode!

I have exactly the same issue on my Asus n53sv

Revision history for this message
Fabio Marconi (fabiomarconi) wrote :

xserver-xorg-video-intel
Hello michiel or Eugene.
Sorry but is wrong again.
Please run in a terminal
apport-collect 814895
in the hope thet this time works.
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

affects: xserver-xorg-video-intel (Ubuntu) → xorg (Ubuntu)
Revision history for this message
Eugene Lipchansky (nsky) wrote :

Hello Fabio,
I'm afraid the already uploaded data that's all I'm able to get from my PC with 'apport-collect 814895'
May be michiel is able to get more....
Could you please tell me what output do you expect? Probably I can give it in some another way?
I'm experienced user (I'm software developer actually) so I can help with any tests/logs/low level manipulations
to OS if some developer needs it to fix. I'm very keen to get it fixed.
Personally I think the problem is in the intel video driver or KMS because when I specify video=VGA-1:d kernel option the system boots fine (but with no external monitor of course).

Revision history for this message
Fabio Marconi (fabiomarconi) wrote :

ok, please zip all the /var/log dir and attach it here using, the button below 'Add attachment or patch'.
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

Revision history for this message
Fabio Marconi (fabiomarconi) wrote :

or better attach just
/var/log/kern.log
/var/log/Xorg.0.log

Revision history for this message
Eugene Lipchansky (nsky) wrote :
Revision history for this message
Eugene Lipchansky (nsky) wrote :

requested files uploaded

affects: xorg (Ubuntu) → xserver-xorg-video-intel (Ubuntu)
Changed in xserver-xorg-video-intel (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
YADA (yada) wrote :

This bug also exists on Asus N53SN. Most dangerous side effect is NOT initializing LCD panel, so LCD refresh cycle halted (could kill the panel).

Revision history for this message
YADA (yada) wrote :

After some try and fail I have one minor workaround, instead unplug-plug hdmi cable, I need to press [fn]+[F8] keys two times (this switch monitors two times) when grub menu displays. Better than stressing hdmi cable everytime.

Bryce Harrington (bryce)
summary: - Ubuntu won't load with external monitor connected on ASUS N73SV laptop.
- Dual monitor bug. *ERROR* Couldn't find PLL settings for mode!
+ [snb-m-gt2] Ubuntu won't load with external monitor connected on ASUS
+ N73SV laptop. Dual monitor bug. *ERROR* Couldn't find PLL settings for
+ mode!
description: updated
Revision history for this message
Bryce Harrington (bryce) wrote : Re: [snb-m-gt2] Ubuntu won't load with external monitor connected on ASUS N73SV laptop. Dual monitor bug. *ERROR* Couldn't find PLL settings for mode!

So, looks like it's trying to boot up on crtc #3, but presumably only 1 and 2 are attached. That happens well before X.org loads, so it looks to be a bug in kernel drm.

Please turn on kernel graphics debugging - run 'sudo xdiagnose', it's the first checkbox. Check it, click apply, reboot, and reproduce the problem, then collect 'sudo dmesg > dmesg.txt' and attach that here. That will help identify why the kernel is getting so confused by CRTC #3.

There's been a significant amount of kernel work upstream to resolve problems like this in sandy bridge and ivy bridge, and presumably if you boot the 3.2 kernel the issue would be resolved. If you'd like to test this theory but you don't want to install Ubuntu Precise, it should be sufficient to boot a Live USB session, configure the monitors, and see if it is working properly now. You can get the current Live USB desktop image at http://cdimage.ubuntu.com/daily-live/current/ and create a USB boot drive using usb-creator.

Changed in xserver-xorg-video-intel (Ubuntu):
status: Confirmed → Incomplete
summary: - [snb-m-gt2] Ubuntu won't load with external monitor connected on ASUS
- N73SV laptop. Dual monitor bug. *ERROR* Couldn't find PLL settings for
- mode!
+ [snb-m-gt2] Booting with external monitor fails with *ERROR* Couldn't
+ find PLL settings for mode!
Revision history for this message
Eugene Lipchansky (nsky) wrote :

Ubuntu 12.04 Live CD (kernel 3.2):
PROBLEM IS STILL THERE

In the attachment: dmesg with extra X debug info

Bryce Harrington (bryce)
Changed in xserver-xorg-video-intel (Ubuntu):
status: Incomplete → Confirmed
Bryce Harrington (bryce)
tags: added: precise
Bryce Harrington (bryce)
description: updated
Revision history for this message
José Vélez (jose-velez) wrote :

Same problem when booting with a Monitor attached to the VGA port in Asus N53S.

Revision history for this message
In , Bryce Harrington (bryce) wrote :

Forwarding this bug from Ubuntu reporter Eugene Lipchansky:
http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/814895

[Problem]
Ubuntu hangs after grub when an external monitor connected to ASUS N73SV via HDMI or VGA. Error message is:

 *ERROR* Couldn't find PLL settings for mode!

First reported against Ubuntu 11.04 Natty (2.6.38-10.46-generic 2.6.38.7). Verified as still occurring with Ubuntu 12.04 (kernel 3.2).

(We've had several similar bugs on sandybridge with external monitors. I'll forward the others as well.)

[Original Report]
With the HDMI/VGA disconnected Ubuntu starts fine. After Ubuntu completely loaded the external display can be connected without problems. At this time it is detected properly and works perfect. The desktop is shared fine to it. i.e each time I turn it on I have to disconnect external display, wait until Ubuntu login screen displayed, then connect
the external display again.

Xorg.0.log ends with:
[ 6.501] (==) intel(0): Silken mouse enabled
[ 6.501] (II) intel(0): Initializing HW Cursor
[ 6.507] (EE) intel(0): failed to set mode: Invalid argument
[ 6.507]
Fatal server error:
[ 6.507] AddScreen/ScreenInit failed for driver 0

dmesg shows:
[ 4.467170] [drm:i915_driver_open],
[ 4.467182] [drm:drm_crtc_helper_set_config],
[ 4.467184] [drm:drm_crtc_helper_set_config], [CRTC:3] [FB:40] #connectors=1 (x y) (0 0)
[ 4.467191] [drm:drm_crtc_helper_set_config], crtc has no fb, full mode set
[ 4.467193] [drm:drm_crtc_helper_set_config], modes are different, full mode set
[ 4.467195] [drm:drm_mode_debug_printmodeline], Modeline 0:"" 0 0 0 0 0 0 0 0 0 0 0x0 0x0
[ 4.467198] [drm:drm_mode_debug_printmodeline], Modeline 23:"1920x1080" 60 132600 1920 1944 1976 2016 1080 1084 1090 1096 0x48 0xa
[ 4.467201] [drm:drm_crtc_helper_set_config], encoder changed, full mode switch
[ 4.467203] [drm:drm_crtc_helper_set_config], crtc changed, full mode switch
[ 4.467205] [drm:drm_crtc_helper_set_config], [CONNECTOR:5:LVDS-1] to [CRTC:3]
[ 4.467207] [drm:drm_crtc_helper_set_config], attempting to set mode from userspace
[ 4.467209] [drm:drm_mode_debug_printmodeline], Modeline 23:"1920x1080" 60 132600 1920 1944 1976 2016 1080 1084 1090 1096 0x48 0xa
[ 4.467215] [drm:drm_crtc_helper_set_mode], [CRTC:3]
[ 4.467253] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
[ 4.467257] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]
[ 4.467259] [drm:drm_crtc_helper_set_config],

Revision history for this message
In , Bryce Harrington (bryce) wrote :

Created attachment 55707
dmesg.txt

Revision history for this message
Bryce Harrington (bryce) wrote :

Eugene Lipchansky - I've forwarded this bug upstream to https://bugs.freedesktop.org/show_bug.cgi?id=44875 - please subscribe yourself to this bug, in case they need further information or wish you to test something. Thanks ahead of time!

Changed in xserver-xorg-video-intel (Ubuntu):
status: Confirmed → Triaged
Changed in xserver-xorg-video-intel:
importance: Unknown → High
status: Unknown → Confirmed
Revision history for this message
In , Grackleflint (grackleflint) wrote :

This looks to be the same issue I am encountering with a Lenovo T520 running Fedora 16. The Xserver fails to start when there is an external monitor attached and the LCD screen is closed. The problem only occurs if the screen is closed at power on, presumably because the BIOS disables the LCD screen in those circumstances.

This is running Fedora16 with kernel 3.2.2-1.fc16.x86_64.

A brief excerpt from dmesg shows a similar message:

[ 2.741944] [drm:ironlake_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode!
[ 2.741953] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC:3]

Revision history for this message
Bryce Harrington (bryce) wrote :

Hi Eugene,

Unfortunately upstream hasn't given the bug much attention so far. I can re-ping them, but let me ask first, are you still suffering from this bug?

Changed in xserver-xorg-video-intel (Ubuntu):
status: Triaged → Incomplete
Revision history for this message
Eugene Lipchansky (nsky) wrote :

I recently tried 12.04 beta 1 - problem still exists. Thanks, Bryce.

Revision history for this message
In , Bryce Harrington (bryce) wrote :

Eugene reported to me that this issue still persists as of 12.04-beta1.

Revision history for this message
In , Eugeni Dodonov (eugeni) wrote :

Paulo, I think you was looking into similar issues for external outputs on SNB in the past, could you take a look at this please?

Revision history for this message
In , Bryce Harrington (bryce) wrote :

The user reports he's still seeing this error with 12.04 beta1

Changed in xserver-xorg-video-intel (Ubuntu):
status: Incomplete → Confirmed
status: Confirmed → Triaged
Revision history for this message
Musaab (musaab-ozdemir) wrote :

This bug also affects my N53SN with either Kubuntu/Ubuntu 12.04 Beta 1.

Revision history for this message
In , Paulo Zanoni (pzanoni) wrote :

Does this patch fix the bug?

http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-next-queued&id=b03543857fd75876b96e10d4320b775e95041bb7

(from ~danvet/drm-intel repository, drm-intel-next-queued tree)

Revision history for this message
In , Jesse Barnes (jbarnes-virtuousgeek) wrote :

Assuming this is fixed by the LVDS detection patch. Please re-open if not.

Revision history for this message
In , Eugene Lipchansky (nsky) wrote :

I've just tried the kernel below (which I think includes the patch above) on Ububntu 11.10:

http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-experimental/2012-04-19-precise/

The problem is fixed now. However there is a still another bug - laptop's screen is flickering/flashing when ubuntu boot logo is displayed, the external display works fine.
When loading finished and required resolution set both displays work fine.

Revision history for this message
In , Jesse Barnes (jbarnes-virtuousgeek) wrote :

Usually we file new bugs for new issues, but we can just rename this one.

Can you capture a video of the flicker?

Revision history for this message
In , Eugene Lipchansky (nsky) wrote :
Revision history for this message
In , Eugene Lipchansky (nsky) wrote :

BTW: On the video I have the following script running on lightDM start.

!/bin/sh
sleep 2
xrandr --output VGA1 --off
xrandr --output LVDS1 --auto && xrandr --output VGA1 --right-of LVDS1 --auto

With this script removed lightDM shows the same login screen on both displays.
Display configuration is set correctly after login. So all is OK from the point when lightDM appeared.

Revision history for this message
In , Daniel-ffwll (daniel-ffwll) wrote :

Actually I really prefer if you file a new bug for the new issue. It is really confusing when half the bug report is about one issue and the other half about something completely different.

Please attach a new dmesg and the video (or a link to it) to the new report and add a link here.

Revision history for this message
In , Eugene Lipchansky (nsky) wrote :
Revision history for this message
Eugene Lipchansky (nsky) wrote :

The problem is partially fixed:

https://bugs.freedesktop.org/show_bug.cgi?id=44875

I filed a new bug with a further problem:

https://bugs.freedesktop.org/show_bug.cgi?id=48966

Revision history for this message
In , Eugene Lipchansky (nsky) wrote :

I wonder when will this patch be included to the kernel release? I recently compiled 3.4.4 and it's still not there. There is no flickering problem on 3.4.4 anymore.

Revision history for this message
In , Pagnes (pagnes) wrote :

Created attachment 67752
screenshot (dual monitor startup problem)

Revision history for this message
In , Daniel-ffwll (daniel-ffwll) wrote :

The fix has landed in 3.5, if you want it in 3.4 you can submit it to the stable team, reference the commit and this bug report here.

commit b03543857fd75876b96e10d4320b775e95041bb7
Author: Takashi Iwai <email address hidden>
Date: Tue Mar 20 13:07:05 2012 +0100

    drm/i915: Check VBIOS value for determining LVDS dual channel mode, too

Changed in xserver-xorg-video-intel:
status: Confirmed → Fix Released
Revision history for this message
madbiologist (me-again) wrote :

Is this still occurring on Ubuntu 12.10 "Quantal Quetzal"?

Revision history for this message
pippo (claudio-enjoy) wrote :

I have resolved ,
replace Grub settings in the /etc/default/grub
add "nomodeset" in
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash "
like that
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
then
update-grub

ubuntu 12.04 32
kernel : 3.5.0-17-generic
xserver-xorg-video-intel 2:2.19.0-0ubuntu1~xup1

Revision history for this message
Eugene Lipchansky (nsky) wrote :

nomodeset gives you bad resolution and requires to config Xorg manually...
In fact this bug was already fixed in kernel 3.5 and now working perfect to me. Nothing is now required from the user if he runs >=3.5

Revision history for this message
pippo (claudio-enjoy) wrote :

without nomdeset doenst work mine . boot in external mode VGA :)

Chris Wilson (ickle)
Changed in xserver-xorg-video-intel (Ubuntu):
status: Triaged → Fix Released
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