I have a problem when I'm navigating Big Picture with keyboard. It looks like it always triggers actions for enter two times.
For example when I'm here

After pressing enter navigation goes here

instead of

It happens everywhere - not only in the example described above. When I'm using my mouse or gamepad everything is fine.
I'm using Steam Beta, Built: Feb 18 2014, at 10:55:11
My system information:

Processor Information:
Vendor: GenuineIntel
CPU Family: 0x6
CPU Model: 0x3a
CPU Stepping: 0x9
CPU Type: 0x0
Speed: 2501 Mhz
4 logical processors
2 physical processors
HyperThreading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported

Network Information:
Network Speed:

Operating System Version:
Ubuntu 13.10 (64 bit)
Kernel Name: Linux
Kernel Version: 3.11.0-15-generic
X Server Vendor: The X.Org Foundation
X Server Release: 11405000
X Window Manager: Compiz
Steam Runtime Version: steam-runtime-release_2014-02-05

Video Card:
Driver: Intel Open Source Technology Center Mesa DRI Intel(R) Ivybridge Mobile x86/MMX/SSE2>

Driver Version: 3.0 Mesa 10.2.0-devel
OpenGL Version: 3.0
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID: 0x8086
DeviceID: 0x166
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1600 x 900
Desktop Resolution: 1600 x 900
Primary Display Size: 15,04" x 8,46" (17,24" diag)
38,2cm x 21,5cm (43,8cm diag)
Primary VRAM Not Detected

Sound card:
Audio device: Intel PantherPoint HDMI

Memory:
RAM: 7852 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 42579 Mb
Largest Free Hard Disk Block: 34189 Mb

Installed software:

Recent Failure Reports: