ubuntu-x-swat team mailing list archive

[Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>]

Weird, I'm not sure how you got that file out of apport, but it's not
the right format of stuff... it just has all the files we need
concatenated together.  Our tools expect to have the individual files
uploaded as separate attachments.  Ah well.

Btw, thanks for doing all the troubleshooting in filing this defect
report, it helps a lot.

Anyway, something is really loused up bad with your monitor EDID:

 [   28.220068] [drm:edid_is_valid] *ERROR* Raw EDID:
 [   28.220109] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.220111] <3>00 00 00 00 00 00 00 00 00 00 00 00 1f 00 00 00  ................
 [   28.220113] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0f  ................
 [   28.220114] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.220116] <3>00 00 00 3f 00 00 00 00 00 00 00 00 00 00 00 00  ...?............
 [   28.220118] <3>00 00 00 07 07 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.220120] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.220122] <3>7f 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00  ................
 [   28.220123] 
 [   28.242499] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
 [   28.279284] [drm:edid_is_valid] *ERROR* Raw EDID:
 [   28.279325] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279327] <3>00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279329] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279331] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279333] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279334] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279336] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 [   28.279338] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

That probably goes along with your observation #2.

It's quite interesting that disabling KMS makes it work.  That suggests
there is an error in the EDID handling code in the kernel, at least for
this specific gfx card and monitor combination.  I don't think we should
shut off KMS for this, because I think the issue is particular to your
specific graphics card.

Issue #1 sounds like X trying to probe for EDID, and getting confused by
the non-existence of the phantom DVI port.

#3 sounds like it might be a power management issue.  Possibly it's
unrelated to the above, but my money would be that PM is getting
confused by the non-existent DVI port as well.  That might need a
separate fix, but lets see if it disappears once the phantom DVI issue
is sorted.

I'm refiling to the kernel since this will need a DVI quirk in the
kernel drm code.    Since disabling KMS lets you work around the issue,
it seems there is not an X task to do here.


** Package changed: xserver-xorg-video-ati (Ubuntu) => linux (Ubuntu)

** Summary changed:

- [RV690] flicker on startup, dead black screen after some time with lucid if KMS enabled
+ [RV690] flicker on startup, dead black screen after some time with lucid if KMS enabled (Needs DVI quirk)

-- 
[RV690] flicker on startup, dead black screen after some time with lucid if KMS enabled (Needs DVI quirk)
https://bugs.launchpad.net/bugs/561301
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