opera developer /dev/nvidia0 (Operation not permitted)

mwojtkow

mwojtkow

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
clear_uniforms_before_first_program_use
disable_post_sub_buffers_for_onscreen_surfaces
init_gl_position_in_vertex_shader
init_vertex_attributes
use_current_program_after_successful_link
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/libpepflashplayer.so --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