[Intel-gfx] X not starting - Output VGA disconnected message on DH55HC VGA output
Mark Knecht
markknecht at gmail.com
Sun Jan 24 16:16:26 CET 2010
On Sun, Jan 24, 2010 at 5:46 AM, Emmanuel <eallaud at gmail.com> wrote:
> Mark Knecht a écrit :
>> On Sat, Jan 23, 2010 at 6:46 PM, Jin, Gordon <gordon.jin at intel.com> wrote:
>>
>>> Mark Knecht wrote on Sunday, January 24, 2010 7:54 AM:
>>>
>>>> Hi,
>>>> First post here. Thanks in advance.
>>>>
>>>> I purchased an Intel DH55HC motherboard with a Core i5-661
>>>> processor a couple of days ago and am attempting to bring up X at this
>>>> time. The machine is functional, running Gentoo 64-bit, and seems
>>>> quite fast. The only monitors I own are standard old-style VGA so I'm
>>>> attaching to the old-style analog VGA connector on the motherboard. I
>>>> have no PCI or PCI-X graphics adapters in the machine. My problem
>>>> seems to be that xorg-server is not recognizing that the VGA is
>>>> actually hooked up:
>>>>
>>>> (II) intel(0): Output VGA using monitor section Monitor0
>>>> (II) intel(0): Output VGA disconnected
>>>> (WW) intel(0): No outputs definitely connected, trying again...
>>>> (II) intel(0): Output VGA disconnected
>>>> (WW) intel(0): Unable to find initial modes
>>>> (EE) intel(0): No valid modes.
>>>> (II) UnloadModule: "intel"
>>>> (II) UnloadModule: "vgahw"
>>>> (II) Unloading /usr/lib64/xorg/modules//libvgahw.so
>>>> (EE) Screen(s) found, but none have a usable configuration.
>>>>
>>> What's the xf86-video-intel version? 2.9.0 is required.
>>> This new processor is only supported in kernel mode setting. Can you try enabling CONFIG_DRM_I915_KMS or boot option i915.modeset=1? That will report VGA1 instead of VGA in the log (as shown above).
>>>
>>> If that still doesn't work, please file a bug referring to http://www.intellinuxgraphics.org/how_to_report_bug.html. We are definitely interested in report against this new processor.
>>>
>>> Thanks
>>> Gordon
>>>
>>>
>>>
>>
>> Hi Gordon,
>> Thanks for the response. I'm very happy to work with you on bug
>> reports and all. I'd first like to make sure I'm not doing something
>> stupid though so as not to waste too much time.
>>
>> I tried enabling the KMS option, but I see the overall DRM is
>> modular. Is that a problem? I wasn't expecting what happened. The
>> machine is up and running but my screen went black at boot time.
>>
<SNIP>
>>
> There was a bug in Ubuntu 9.10 with KMS not detecting that VGA was
> connected and then was unable to find a "initial mode". I guess that if
> you disable KMS it works right?
> But normally a fix has been commited sometimes ago, but I dont know if
> gentoo has it though. It looks like Ubuntu still does not have it.
> Ubuntu Bug is # 467841 (there you can find the upstream commit msg).
> HTH
> Bye
> Manu
Hi Manu,
Thanks for responding. Yes, it does seem like a similar bug. Your
bug report was helpful as it allows me to load the KMS driver but with
i915.modeset=0 on the command line at least my screen doesn't go
black. I can log in and try starting X but it still fails the same
way. Without the i915.modeset=0 the screen goes black right as the
boot starts processing udev stuff.
I've also tried adding Alan's VGA-1 option. Assuming I did it right
it didn't help.
I'm attaching lists of the modules that get loaded with and without
the i915 KMS turned on in the kernel. With KMS on in the kernel and
i915.modeset=0 the KMS driver still gets loaded but I guess it's not
actively doing whatever causes udev to blank my screen.
I'm also attaching my kernel's config.gz if you or Gordon want to
take a look.
Some additional information:
1) Gentoo allows me to set up multiple video cards. Earlier I had
VIDEO_CARDS="intel vesa fbdev" but I've removed vesa and fbdev and it
didn't help.
2) As the Xorg guys have stated they are going to remove hal in favor
of something else my system is NOT currently using hal. I can try
using hal if anyone thinks it will help or the information would be
useful but I'd like to find a solution that doesn't require it if
possible.
3) To shorten the list of modules I've turned off sound support. Note
that as a test I had ipv6 turned off at one point so don't be
concerned about that difference.
I don't know what else to report right now. I'll keep working on it
and thanks to all for your responses.
Cheers,
Mark
[SCREEN GOES BLACK - cannot use system]
firefly ~ # cat modules_with_kms
Module Size Used by
usbhid 21449 0
i915 205433 0
drm_kms_helper 18363 1 i915
drm 131763 2 i915,drm_kms_helper
ehci_hcd 30406 0
i2c_algo_bit 4223 1 i915
usbcore 111603 3 usbhid,ehci_hcd
e1000e 108826 0
cfbcopyarea 3110 1 i915
i2c_core 15008 3 i915,drm,i2c_algo_bit
ohci1394 24421 0
video 17309 1 i915
rtc_cmos 7592 0
cfbimgblt 1793 1 i915
ieee1394 59211 1 ohci1394
sg 22853 0
rtc_core 11077 1 rtc_cmos
backlight 3292 1 video
rtc_lib 1617 1 rtc_core
processor 23223 4
cfbfillrect 3058 1 i915
thermal 11522 0
output 1540 1 video
intel_agp 24181 1
thermal_sys 10533 3 video,processor,thermal
button 4530 1 i915
firefly ~ #
[SCREEN READABLE - X doesn't work]
firefly ~ # cat modules_with_kms
Module Size Used by
ipv6 213921 22
usbhid 21449 0
i915 205433 0
drm_kms_helper 18363 1 i915
drm 131763 2 i915,drm_kms_helper
ehci_hcd 30406 0
i2c_algo_bit 4223 1 i915
rtc_cmos 7592 0
cfbcopyarea 3110 1 i915
ohci1394 24421 0
rtc_core 11077 1 rtc_cmos
i2c_core 15008 3 i915,drm,i2c_algo_bit
usbcore 111603 3 usbhid,ehci_hcd
rtc_lib 1617 1 rtc_core
e1000e 108826 0
thermal 11522 0
video 17309 1 i915
cfbimgblt 1793 1 i915
intel_agp 24181 1
processor 23223 4
ieee1394 59211 1 ohci1394
backlight 3292 1 video
sg 22853 0
thermal_sys 10533 3 thermal,video,processor
cfbfillrect 3058 1 i915
output 1540 1 video
button 4530 1 i915
firefly ~ #
[SYSTEM USABLE - X doesn't work]
firefly ~ # cat modules_no_kms
Module Size Used by
usbhid 21449 0
ehci_hcd 30406 0
ohci1394 24421 0
usbcore 111603 3 usbhid,ehci_hcd
rtc_cmos 7592 0
video 17309 0
processor 23223 4
rtc_core 11077 1 rtc_cmos
backlight 3292 1 video
intel_agp 24181 1
thermal 11522 0
rtc_lib 1617 1 rtc_core
thermal_sys 10533 3 video,processor,thermal
sg 22853 0
e1000e 108826 0
ieee1394 59211 1 ohci1394
button 4530 0
output 1540 1 video
firefly ~ #
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