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On 2011-05-30T10:50:41+00:00 Jochen wrote:

When booting with the lid closed and in the docking station, the external 
Monitor works fine. (two monitors also work) But when opening the lid then 
laptop screen shows "noise" and a partialy visible and streched picture.
The "noise" does not look like wrong data in the video memory but more like the 
wrong refresh rate got selected.

System ubuntu natty, with xorg-edgers (error is present in plain install)
- xserver-xorg-video-intel 2:2.15.0+git20110513.9d6e02a1-0ubuntu0sarvatt
- Linux version 2.6.39-2-generic (buildd@king) (gcc version 4.5.2 
(Ubuntu/Linaro 4.5.2-8ubuntu4) ) #7-Ubuntu SMP Mon May 16 12:45:34 UTC 2011

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/0

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On 2011-05-30T10:51:50+00:00 Jochen wrote:

Created attachment 47302
lspci -v

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/1

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On 2011-05-30T10:52:33+00:00 Jochen wrote:

Created attachment 47303
dmesg after booting with *open* lid

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/2

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On 2011-05-30T10:53:32+00:00 Jochen wrote:

Created attachment 47304
reg dump after booting with *open* lid

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/3

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On 2011-05-30T10:58:53+00:00 Jochen wrote:

Created attachment 47305
dmesg after booting with *closed* lid,now opened

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/4

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On 2011-05-30T10:59:35+00:00 Jochen wrote:

Created attachment 47306
regdump after booting with *closed* lid,now opened

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/5

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On 2011-05-30T11:04:03+00:00 Jochen wrote:

Created attachment 47308
regdump after booting with *closed* lid,still closed (external monitor)

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/6

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On 2011-05-30T11:48:27+00:00 Chris Wilson wrote:

Lid open:
PCH_DREF_CONTROL: 0x00001402 (cpu source disable, ssc_source enable, 
nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 
enable, ssc4 disable)
PCH_DPLL_A: 0x89086008 (enable, sdvo high speed no, mode LVDS, p2 Div 7, FPA0 
P1 4, FPA1 P1 4, refclk SSC, sdvo/hdmi mul 1)

Lid closed:
PCH_DREF_CONTROL: 0x00001400 (cpu source disable, ssc_source enable, 
nonspread_source enable, superspread_source disable, ssc4_mode downspread, ssc1 
disable, ssc4 disable)
PCH_DPLL_A: 0x88026002 (enable, sdvo high speed no, mode LVDS, p2 Div 14, FPA0 
P1 2, FPA1 P1 2, refclk SSC, sdvo/hdmi mul 1)

One last test, what happens without the external DVI plugged in?

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/7

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On 2011-05-30T15:15:38+00:00 Jochen wrote:

Created attachment 47318
regdump after booting with *closed* lid, no video attached to the docking 
station

The regdump does _not change_ when opening the lid

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/8

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On 2011-05-30T15:18:09+00:00 Jochen wrote:

(In reply to comment #8)
> Created an attachment (id=47318) [details]
> regdump after booting with *closed* lid, no video attached to the docking
> station
> 
> The regdump does _not change_ when opening the lid

The display is ok when booting this way. No distortion.

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/9

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On 2011-07-27T12:01:27+00:00 Jochen wrote:

Checked again with kernel 3.0. Same issues.

Do you have anything new to test (git is fine too)?

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/10

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On 2011-11-21T16:30:05+00:00 Jochen wrote:

Tested this again:
kernel 3.1.1 and X.Org/intel driver as below:

[    50.386] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
[    50.413] (II) Module intel: vendor="X.Org Foundation"
[    50.413]    compiled for 1.11.2, module version = 2.17.0
[    50.413]    Module class: X.Org Video Driver
[    50.413]    ABI class: X.Org Video Driver, version 11.0


Nothing changed, I still have the same issues.

Reply at: https://bugs.launchpad.net/linux/+bug/956046/comments/11


** Changed in: linux
       Status: Unknown => Confirmed

** Changed in: linux
   Importance: Unknown => Medium

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Title:
  intel driver fails to use dual-link LVDS if lid is down at boot

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