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Issue Report:TF2 Error - Required OpenGL extension "GL_EXT_texture_sRGB_decode" is not supported. Please update your OpenGL driver.
I'm getting this error message each time i try to run TF2.
System configuration:
Processor Information:
Vendor: AuthenticAMD
Speed: 3000 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 (32 bit)
Kernel Name: Linux
Kernel Version: 3.2.0-33-generic-pae
X Server vendor: The X.Org Foundation
X Server release: 11103000

Video Card:
Driver: ATI Technologies Inc. ATI Radeon HD 3870

Driver Version: 3.3.11627 Compatibility Profile Context
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 59 Hz
VendorID: 0x1002
DeviceID: 0x9501
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 1920 x 1080
Primary Display Size: 19.96" x 11.22" (22.87" diag)
50.7cm x 28.5cm (58.1cm diag)
Primary VRAM Not Detected

Sound card:
Audio device: Analog Devices AD1988B

Memory:
RAM: 5035 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 22527 Mb
Largest Free Hard Disk Block: 2854 Mb
Terminal logs
Game update: AppID 440 "Team Fortress 2", ProcID 4747, IP 0.0.0.0:0
saving roaming config store to 'sharedconfig.vdf'
roaming config store 2 saved successfully
SDL video target is 'x11'
SDL video target is 'x11'
This system supports the OpenGL extension GL_EXT_framebuffer_object.
This system supports the OpenGL extension GL_EXT_framebuffer_blit.
This system supports the OpenGL extension GL_EXT_framebuffer_multisample.
This system DOES NOT support the OpenGL extension GL_APPLE_fence.
This system DOES NOT support the OpenGL extension GL_NV_fence.
This system supports the OpenGL extension GL_ARB_sync.
This system supports the OpenGL extension GL_EXT_draw_buffers2.
This system supports the OpenGL extension GL_EXT_bindable_uniform.
This system DOES NOT support the OpenGL extension GL_APPLE_flush_buffer_range.
This system supports the OpenGL extension GL_ARB_map_buffer_range.
This system supports the OpenGL extension GL_ARB_vertex_buffer_object.
This system supports the OpenGL extension GL_ARB_occlusion_query.
This system DOES NOT support the OpenGL extension GL_APPLE_texture_range.
This system DOES NOT support the OpenGL extension GL_APPLE_client_storage.
This system DOES NOT support the OpenGL extension GL_ARB_uniform_buffer.
This system supports the OpenGL extension GL_ARB_vertex_array_bgra.
This system supports the OpenGL extension GL_EXT_vertex_array_bgra.
This system supports the OpenGL extension GL_ARB_framebuffer_object.
This system DOES NOT support the OpenGL extension GL_GREMEDY_string_marker.
This system DOES NOT support the OpenGL extension GL_ARB_debug_output.
This system supports the OpenGL extension GL_EXT_direct_state_access.
This system DOES NOT support the OpenGL extension GL_NV_bindless_texture.
This system supports the OpenGL extension GL_AMD_pinned_memory.
This system DOES NOT support the OpenGL extension GL_EXT_framebuffer_multisample_blit_scaled.
This system DOES NOT support the OpenGL extension GL_EXT_texture_sRGB_decode.
This system DOES NOT support the OpenGL extension GL_NVX_gpu_memory_info.
This system supports the OpenGL extension GL_ATI_meminfo.
This system supports the OpenGL extension GL_EXT_texture_compression_s3tc.
This system DOES NOT support the OpenGL extension GLX_EXT_swap_control_tear.
GL_NV_bindless_texture: DISABLED
GL_AMD_pinned_memory: DISABLED
GL_EXT_texture_sRGB_decode: NOT AVAILABLE
Required OpenGL extension "GL_EXT_texture_sRGB_decode" is not supported. Please update your OpenGL driver.
Screenshot: http://steamcommunity.com/sharedfiles/filedetails/?id=110211708

This feature is pretty common for users with AMD graphics card pre HD5xxx as i can see.

EDIT: AMD created their steam linux forum too, you may want to check it http://devgurus.amd.com/community/steam-linux/
Last edited by パルスオーディオ; Dec 16, 2012 @ 12:39am
Steam for Linux > Limited Beta > Topic Details