[Bug 71267] sna: (Haswell) X-server freezes when enabling DP at docking station
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sat Jan 18 11:56:34 PST 2014
https://bugs.freedesktop.org/show_bug.cgi?id=71267
--- Comment #77 from jacek s <jacek at strongowski.com> ---
Hello,
I have the same problem, maybe I can contribute with some more data to solve
this.
If I can provide any more data, let me know how and I will.
OS: Ubuntu 10.13 (GNOME) + apt-get upgrade
Hardware:
Lenovo docking station Thinkpad Ultradock
Lenovo x240 (only VGA and mini DP output)
Behaviour regarding screens/docking stations:
1)
Docking station connected to AC adapter.
Docking station connected via HDMI<->HDMI to an LCD screen.
OS loaded(booted) , user logged in.
Result:
When I dock the laptop screen freezes, nothing moves, I dont see anything I
type.
When I undock the laptop everything unfreezes and I see everything I've typed
when it was frozen. I can repeat it all the time.
2)
Docking station connected to AC adapter.
Docking station connected via DiplayPort<->DVI to an LCD screen.
OS loaded(booted) , user logged in
Result:
Same as above
3)
Docking station connected to AC adapter.
Docking station connected via DiplayPort<->DVI to an LCD screen.
I dock the laptop when its off and then start it.
Result:
Initial sequence visible, then screen goes blank (backlight on).
When I undock it I see user login screen.Operational.
4)
Docking station connected to AC adapter.
Docking station connected via HDMI<->DVI to an LCD screen.
I dock the laptop when its off and then start it.
Result:
Same as above
5)
Docking station NOT connected to AC adapter.
Docking station connected via HDMI<->HDMI to an LCD screen.
Result:
When I dock the laptop it do not freezes, remains operational but nothing
happens with the screen.
6)Docking station NOT connected to AC adapter.
Docking station connected via DVI<->HDMI to an LCD screen.
Result:
Same as above.
7) Connecting laptop directly thru miniDP or VGA was not tested yet.
Best Regards
Jacek
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