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

[Peter Williams]

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                                   pwil3058@xxxxxxxxxxxxxx

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