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opera developer /dev/nvidia0 (Operation not permitted)

  • Hi

    After running opera-developer from bash on ubuntu 12.04 I got message:
    NVIDIA: could not open the device file /dev/nvidia0 (Operation not permitted)

    Opera starts to read quite often from the disk which slows down browser.
    How i can fix it ?
    Which permissions needs nvidia to run it properly ?

    Below some details from opera://gpu:

    Graphics Feature Status
    Canvas: Software only, hardware acceleration unavailable
    Flash 3D: Unavailable. Hardware acceleration unavailable
    Flash Stage3D: Unavailable. Hardware acceleration unavailable
    Flash Stage3D Baseline profile: Unavailable. Hardware acceleration unavailable
    Compositing: Hardware accelerated and threaded.
    Rasterization: Software only, hardware acceleration unavailable
    Video Decode: Software only, hardware acceleration unavailable
    Video Encode: Hardware accelerated
    WebGL: Hardware accelerated
    Driver Bug Workarounds
    Problems Detected
    Accelerated 2d canvas is unstable in Linux at the moment
    Disabled Features: accelerated_2d_canvas
    Stage3D is not supported on Linux: 129848
    Disabled Features: flash_stage3d
    Accelerated video decode is unavailable on Mac and Linux: 137247, 133828
    Disabled Features: accelerated_video_decode
    NVIDIA linux drivers are unstable when using multiple Open GL contexts and with low memory: 145600
    Disabled Features: flash_3d, accelerated_video_decode, flash_stage3d
    GPU rasterization is whitelisted on N4, N5, N7 and Moto X: 362779
    Disabled Features: gpu_rasterization
    Always call glUseProgram after a successful link to avoid a driver bug: 349137
    Applied Workarounds: use_current_program_after_successful_link
    Program link fails in NVIDIA Linux if gl_Position is not set: 286468
    Applied Workarounds: init_gl_position_in_vertex_shader
    Clear uniforms before first program use on all platforms: 124764, 349137
    Applied Workarounds: clear_uniforms_before_first_program_use
    Linux NVIDIA drivers don't have the correct defaults for vertex attributes: 351528
    Applied Workarounds: init_vertex_attributes
    Disable partial swaps on linux drivers: 339493
    Applied Workarounds: disable_post_sub_buffers_for_onscreen_surfaces
    Version Information
    Data exported 7/13/2014 6:30:43 PM
    Chrome version OPR/24.0.1543.0
    Operating system Linux 3.2.0-53-generic
    Software rendering list version 8.4
    Driver bug list version 5.6
    ANGLE commit id 78ec414d5052
    2D graphics backend Skia
    Command Line Args --ppapi-flash-path=/opt/google/chrome/PepperFlash/ --ppapi-flash-version=11.8.800.170 --flag-switches-begin --flag-switches-end --disable-direct-npapi-requests --enable-download-resumption --with-feature:enhanced-autofill
    Driver Information
    Initialization time 2294
    Sandboxed true
    GPU0 VENDOR = 0x10de, DEVICE= 0x0ca0
    Optimus false
    AMD switchable false
    Driver vendor NVIDIA
    Driver version 304.88