2009-10-06 06:37:52

by Peter Williams

[permalink] [raw]
Subject: [ERROR] drm:edid; Unexpected error messages in syslog

I've started getting the following messages on recent kernels:

Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:50:40 mudlark kernel:
Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:50:40 mudlark kernel:
Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:50:41 mudlark kernel: [drm] DAC-6: set mode 1600x1200 16
Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:50:45 mudlark kernel:
Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:50:45 mudlark kernel:
Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:50:45 mudlark kernel:
Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:51:00 mudlark kernel:
Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:51:00 mudlark kernel:
Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
checksum is invalid, remainder is 16
Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
Oct 5 16:51:00 mudlark kernel:
Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.

Should I worry about these? There's no other noticeable problem with
the system.

Peter
--
Peter Williams [email protected]

"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce


2009-10-09 05:19:26

by Zhao, Yakui

[permalink] [raw]
Subject: Re: [ERROR] drm:edid; Unexpected error messages in syslog

On Tue, 2009-10-06 at 14:37 +0800, Peter Williams wrote:
> I've started getting the following messages on recent kernels:
>
> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:50:40 mudlark kernel:
> Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:50:40 mudlark kernel:
> Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:50:41 mudlark kernel: [drm] DAC-6: set mode 1600x1200 16
> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:50:45 mudlark kernel:
> Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:50:45 mudlark kernel:
> Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:50:45 mudlark kernel:
> Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:51:00 mudlark kernel:
> Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:51:00 mudlark kernel:
> Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
> checksum is invalid, remainder is 16
> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
> Oct 5 16:51:00 mudlark kernel:
> Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
It seems that the EDID obtained from VGA monitor is incorrect.
Will you please open a new bug in
https://bugs.freedesktop.org/

and attach the output of dmesg, vbios.dump?
The vbios.dump can be obtained by using the following commands:
echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom
cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.dump
echo 0 > /sys/devices/pci0000:00/0000:00:02.0/rom

Thanks.
>
> Should I worry about these? There's no other noticeable problem with
> the system.
>
> Peter

2009-10-10 00:57:12

by Peter Williams

[permalink] [raw]
Subject: Re: [ERROR] drm:edid; Unexpected error messages in syslog

On 09/10/09 15:17, ykzhao wrote:
> On Tue, 2009-10-06 at 14:37 +0800, Peter Williams wrote:
>> I've started getting the following messages on recent kernels:
>>
>> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:50:40 mudlark kernel:
>> Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:50:40 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:50:40 mudlark kernel:
>> Oct 5 16:50:40 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:50:41 mudlark kernel: [drm] DAC-6: set mode 1600x1200 16
>> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:50:45 mudlark kernel:
>> Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:50:45 mudlark kernel:
>> Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:50:45 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:50:45 mudlark kernel:
>> Oct 5 16:50:45 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:51:00 mudlark kernel:
>> Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:51:00 mudlark kernel:
>> Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
>> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* EDID
>> checksum is invalid, remainder is 16
>> Oct 5 16:51:00 mudlark kernel: [drm:edid_is_valid] *ERROR* Raw EDID:
>> Oct 5 16:51:00 mudlark kernel:
>> Oct 5 16:51:00 mudlark kernel: i915 0000:00:02.0: VGA-1: EDID invalid.
> It seems that the EDID obtained from VGA monitor is incorrect.
> Will you please open a new bug in
> https://bugs.freedesktop.org/
>
> and attach the output of dmesg, vbios.dump?
> The vbios.dump can be obtained by using the following commands:
> echo 1> /sys/devices/pci0000:00/0000:00:02.0/rom
> cat /sys/devices/pci0000:00/0000:00:02.0/rom> vbios.dump
> echo 0> /sys/devices/pci0000:00/0000:00:02.0/rom
>
> Thanks.

Exactly which of the MANY products at this site should be the target of
this bug report? It's certainly not obvious to me :-(.

>>
>> Should I worry about these? There's no other noticeable problem with
>> the system.
>>
>> Peter
>
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>


--
Peter Williams [email protected]

"Learning, n. The kind of ignorance distinguishing the studious."
-- Ambrose Bierce