[Bug 71267] sna: (Haswell) X-server freezes when enabling DP at docking station

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71267

--- Comment #154 from Anastas Stoyanovsky <anastas.stoyanovsky at calumetspecialty.com> ---
(In reply to comment #153)
> Dual display is confirmed working after firmware upgrade.
> 
> I'm dual booting Arch Linux (uname -r: kernel 3.12.9-2-ARCH) and Windows 7
> on a Thinkpad T440 and using the Thinkpad Pro Dock; after installing dock
> firmware version 2.17.00 linked above on Windows and rebooting into Arch,
> dual display (monitor model Acer V236HL) is confirmed working over DVI,
> including extended desktop.
> 
> Thank you to everyone that contributed to this fix.

Elaboration: I have not applied any patches to the kernel at all. The firmware
upgrade was enough in my case.

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