Re: [gentoo-user] Kernel 3.6: No external Monitor

[Damien Levac]

On 11/20/12 15:35, Norman Rieß wrote:
> Am 20.11.2012 20:08, schrieb Damien Levac:
>> On 11/20/12 13:33, Norman Rieß wrote:
>>> Am 20.11.2012 19:02, schrieb Florian Philipp:
>>>> Am 20.11.2012 14:52, schrieb Norman Rieß:
>>>>> Am 20.11.2012 13:51, schrieb Bruce Hill:
>>>>>> On Tue, Nov 20, 2012 at 08:44:08AM +0100, Norman Rieß wrote:
>>>>>>> Hello,
>>>>>>>
>>>>>>> i am using a Thinkpad X301 with a DVI Monitor connected to the mini
>>>>>>> displayport.
>>>>>>> That worked perfectly for years, but with Kernel 3.6 (and 3.7rc) the DVI
>>>>>>> Monitor stays black on boot and it is not visible in xrandr. As if it
>>>>>>> wasn't connected at all.
>>>>>>> Rebooting with 3.5 brings back the Display with full functionality.
>>>>>>>
>>>>>>> All i found about this was a Fedora bugreport stating the issue, but is
>>>>>>> unanswered for a month now.
>>>>>>>
>>>>>>> Does someone got an idea here or faced the same issue and solved it?
>>>>>>>
>>>>>>> Regards,
>>>>>>> Norman
>>>>>> Can you give us a link to:
>>>>>>
>>>>>> (1) the Fedora bug report
>>>>>> (2) your 3.5 kernel .config
>>>>>> (3) your 3.6 (and 3.7rc) kernel .config(s)
>>>>>>
>>>>> Yes.
>>>>> (1) https://bugzilla.redhat.com/show_bug.cgi?id=869824
>>>>>
>>>>> (2) http://smash-net.org/temp/config-3.5.4
>>>>> (3) http://smash-net.org/temp/config-3.6.6
>>>>>     http://smash-net.org/temp/config-3.7.0-rc6
>>>>>
>>>>>
>>>>>
>>>> What does `xrandr --current` say? (from x11-apps/xrandr)
>>>>
>>>> Regards,
>>>> Florian Philipp
>>>>
>>> In what situation? 3.5 or 3.6 kernel?
>>>
>> In doubt, both. But I'm fairly sure he meant 3.6 since there are no
>> problem to solve in 3.5. :P
>>
>> Damien
>>
> Yeah, i was kinda irritated by that question, as i allready said, that
> xrandr does not show the display.
> 3.5 activates the display during kernel loading, on 3.6 it stays shut
> off during the whole boot process.
>
>
> 3.6:
> xrandr --current
> Screen 0: minimum 320 x 200, current 1440 x 900, maximum 32767 x 32767
> LVDS1 connected 1440x900+0+0 (normal left inverted right x axis y axis)
> 287mm x 180mm
>    1440x900       60.0*+   50.0
>    1024x768       60.0
>    800x600        60.3     56.2
>    640x480        59.9
> VGA1 disconnected (normal left inverted right x axis y axis)
> HDMI1 disconnected (normal left inverted right x axis y axis)
> DP1 disconnected (normal left inverted right x axis y axis)
> DP2 disconnected (normal left inverted right x axis y axis)
>
> ---------------------------------------------
> 3.5 both screens mirrored:
> xrandr --current
> Screen 0: minimum 320 x 200, current 1440 x 900, maximum 32767 x 32767
> LVDS1 connected 1440x900+0+0 (normal left inverted right x axis y axis)
> 287mm x 180mm
>    1440x900       60.0*+   50.0
>    1024x768       60.0
>    800x600        60.3     56.2
>    640x480        59.9
> VGA1 disconnected (normal left inverted right x axis y axis)
> HDMI1 connected 1440x900+0+0 (normal left inverted right x axis y axis)
> 518mm x 324mm
>    1920x1200      60.0 +
>    1600x1200      60.0
>    1680x1050      59.9
>    1680x945       60.0
>    1400x1050      59.9
>    1600x900       60.0
>    1280x1024      60.0
>    1440x900       59.9*
>    1280x960       60.0
>    1366x768       60.0
>    1360x768       60.0
>    1280x800       59.9
>    1280x768       60.0
>    1024x768       60.0
>    1024x576       60.0
>    800x600        60.3     56.2
>    848x480        60.0
>    640x480        60.0
> DP1 disconnected (normal left inverted right x axis y axis)
> DP2 disconnected (normal left inverted right x axis y axis)
>
> ---------------------------------------------
> 3.5 in my dualscreen setup:
> xrandr --current
> Screen 0: minimum 320 x 200, current 3360 x 1200, maximum 32767 x 32767
> LVDS1 connected 1440x900+1920+0 (normal left inverted right x axis y
> axis) 287mm x 180mm
>    1440x900       60.0*+   50.0
>    1024x768       60.0
>    800x600        60.3     56.2
>    640x480        59.9
> VGA1 disconnected (normal left inverted right x axis y axis)
> HDMI1 connected 1920x1200+0+0 (normal left inverted right x axis y axis)
> 518mm x 324mm
>    1920x1200      60.0*+
>    1600x1200      60.0
>    1680x1050      59.9
>    1680x945       60.0
>    1400x1050      59.9
>    1600x900       60.0
>    1280x1024      60.0
>    1440x900       59.9
>    1280x960       60.0
>    1366x768       60.0
>    1360x768       60.0
>    1280x800       59.9
>    1280x768       60.0
>    1024x768       60.0
>    1024x576       60.0
>    800x600        60.3     56.2
>    848x480        60.0
>    640x480        60.0
> DP1 disconnected (normal left inverted right x axis y axis)
> DP2 disconnected (normal left inverted right x axis y axis)
>
I know this is not really what you want to hear about, but you should
wait for the fix to solve itself. The reason I'm saying this is that
Intel programmers are really working hard on their graphics drivers with
Steam comming to Linux and this is probably just a bug in their drivers
to which we have no power.

I could also be wrong though but I learned to just back off and wait
when a new kernel version breaks something.

Damien