Please include output as requested on https://github.com/ValveSoftware/steam-for-linux/.
There are many issues with both dual monitors and mouse connection issues.
Check out my post on issue 103:
I did a bunch of work with fullscreen and multimon. I believe I got most of these issues so this should hopefully be fixed. Please let me know precise repro steps with info on your configuration if this still happens. Thanks.
TF2 Beta is STILL unplayble for me, cannot navigate via mouse
Processor Information:
Vendor: GenuineIntel
Speed: 2603 Mhz
2 logical processors
2 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Unsupported
SSE42: Unsupported
Network Information:
Network Speed:
Operating System Version:
Ubuntu 12.04.1 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 3.7.1-030701-generic
X Server vendor: The X.Org Foundation
X Server release: 11103000
Video Card:
Driver: NVIDIA Corporation GeForce 8400 GS/PCIe/SSE2
Driver Version: 3.3.0 NVIDIA 310.19
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 59 Hz
VendorID: 0x10de
DeviceID: 0x6e4
Number of Monitors: 2
Number of Logical Video Cards: 1
Primary Display Resolution: 1440 x 900
Desktop Resolution: 2720 x 1024
Primary Display Size: 16.06" x 10.04" (18.94" diag)
40.8cm x 25.5cm (48.1cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 512 MB
Supported MSAA Modes: 2x 4x 8x 16x
Sound card:
Audio device:
Memory:
RAM: 3953 Mb
Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 269505 Mb
Largest Free Hard Disk Block: 4342 Mb
Installed software:
Recent Failure Reports:
@fifunja have you done an apt-get update/upgrade yet?
yes, replaced the Steam deb and I update my OS every day
either TF2 or TF2 opens in a small GL window and I cannot change the settings - ingame mouse is completely displaced from the actual pointer, cannot select options
nVidia 8400 GS + driver 310.19, dual monitor setup, OS Ubuntu 12.04.1 amd64, kernel 3.7.1