I had the same problem, at the same level. I quit and restarted the game and everything was fine again. It never happened again (I think I'm at 75% of the game).
Processor Information:
Vendor: GenuineIntel
Speed: 3100 Mhz
4 logical processors
4 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported
Network Information:
Network Speed:
Operating System Version:
"Fedora release 17 (Beefy Miracle)" (64 bit)
Kernel Name: Linux
Kernel Version: 3.7.9-104.fc17.x86_64
X Server Vendor: Fedora Project
X Server Release: 11204000
X Window Manager: Mutter
Steam Runtime Version: steam-runtime-release-i386_2013-02-27
Video Card:
Driver: NVIDIA Corporation GeForce GTX 550 Ti/PCIe/SSE2
Driver Version: 4.2.0 NVIDIA 304.64
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID: 0x10de
DeviceID: 0x1244
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 1920 x 1080
Primary Display Size: 18,78" x 10,55" (21,54" diag)
47,7cm x 26,8cm (54,7cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 1023 MB
Supported MSAA Modes: 2x 4x 8x 16x
Sound card:
Audio device: Intel CougarPoint HDMI
Memory:
RAM: 3935 Mb
Miscellaneous:
UI Language: English
LANG: fr_FR.utf8
Microphone: Not set
Total Hard Disk Space Available: 1185862 Mb
Largest Free Hard Disk Block: 11823 Mb
Installed software:
Recent Failure Reports:
Tried to restart and tried to run the game on a different windows manager but nothing changed. However a few levels after I went back to fullscreen mode and everything was fine. Finished the game without encountering the issue again, always in fullscreen mode.
Out of curiosity I went back to the problematic level and the problem is still there. However, since it's limited to a few levels and didn't ruin the gameplay, it's definitely a very low priority bug for me.
Can confirm same behaviour here, this is going to be one of those contact-the-gamedevs issues, not something Steam can resolve, so am going to close this.
Nothing extracted yet.
Description:
In Rochard some lighting are missing: shots, electrified floor, force fields, etc...
Problem showed at the first reverse-gravity level and level after that (I stopped there so I wouldn't know about next levels), all previous levels are fine. In windowed mode everything looks fine too.
screenshot with bug (fullscreen):
http://steamcommunity.com/sharedfiles/filedetails/?id=131449314
screenshot without (windowed):
http://steamcommunity.com/sharedfiles/filedetails/?id=131449547
System: