[Nouveau] [Bug 56615] [NVD9] Unable to start X on ThinkPad T420s laptop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56615

--- Comment #25 from Mark Cave-Ayland <mark.cave-ayland at ilande.co.uk> ---
Hi all,

Sorry to prod an old bug once again, however as I'd seem some possibly relevant
fixes go through the mailing list I thought I'd try the latest drm-nouveau-next
checkout and see if my problem was fixed. Unfortunately it still doesn't work
for me :(

On the plus side, I noticed that if I use a DisplayPort to HDMI cable to
connect to a borrowed HD monitor (1920x1080) then nouveau now works as expected
which is a great milestone! However if I try and use my standard Dell HD
monitor (2560x1440) with a direct DisplayPort cable then nouveau still doesn't
work for me with the same symptoms as described earlier in this bug report.

I noticed that there is quite a lot of verbose debugging in dmesg in the latest
checkout, so I'll attach that below in the hope someone can work out why I
can't use my Dell monitor with direct DisplayPort connection.


Many thanks,

Mark.

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