Chris, you mention overriding the EDID. I have a similar problem using
the i915 driver with a laptop display that fails to report its EDID. I
have tried using drm_kms_helper, but I haven't gotten it to work yet.
/sys/devices/pci:00/:00:02.0/drm/card0/card0-LVDS-1/edid
contains correct
Indeed, the way to handle it is to parse the EDID, repair it and then
feed it back to the kernel overriding the one provided by your monitor.
Or just get the vendor to supply working firmware.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed = Invalid
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You received
Updating my monitor's firmware fixed this issue, so I think it's rather a
legit message than a bug, however, useful information could be extracted
from the EDID data, so maybe some looser checking could be used.
On Mon, Sep 10, 2012 at 8:49 PM, Bryce Harrington
1033...@bugs.launchpad.net wrote:
Sounds like bug 992346
** Changed in: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided = Medium
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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** Tags added: tv-out
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https://bugs.launchpad.net/bugs/1033695
Title:
External HDMI Monitor does not get detected / invalid EDID checksum
To manage
using the read-edid package I can get the following (needed to load the
'eeprom' module first):
Although it reports an invalid checksum this all seems like sensible
information.
decode-edid: using bus 3 (autodetected)
decode-edid: decode-edid version 1.1
parse-edid: parse-edid version 2.0.0
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https://bugs.launchpad.net/bugs/1033695
Title:
External HDMI Monitor does not get detected / invalid EDID checksum
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