I can confirm this weird bug. Nvidia 8400M G can't work in the latest 13.04 (Ubuntu/Xubuntu), no matter what driver I install. Nouveau with stock kernel 3.8.x after few minutes of work drives to rubbish as shown up. Nouveau with kernel 3.9.x - the same result.
Stock kernel 3.8.x or 3.9.x and almost any NVIDIA driver (304.x, 310.x, 313.x) also won't work. System hangs up when specific OpenGL (???) is used - for example: glxinfo in terminal locks system, launching Firefox (fullscreen) locks system, and so on.
The only error that Nouveau reports:
kernel: nouveau E[ PFB][0000:01:00.0] trapped read at 0x0020361400 on channel 0x0000fb3a PGRAPH/TEXTURE/00 reason: PAGE_NOT_PRESENT
I can confirm this weird bug. Nvidia 8400M G can't work in the latest 13.04 (Ubuntu/Xubuntu), no matter what driver I install. Nouveau with stock kernel 3.8.x after few minutes of work drives to rubbish as shown up. Nouveau with kernel 3.9.x - the same result.
Stock kernel 3.8.x or 3.9.x and almost any NVIDIA driver (304.x, 310.x, 313.x) also won't work. System hangs up when specific OpenGL (???) is used - for example: glxinfo in terminal locks system, launching Firefox (fullscreen) locks system, and so on.
The only error that Nouveau reports:
kernel: nouveau E[ PFB][0000:01:00.0] trapped read at 0x0020361400 on channel 0x0000fb3a PGRAPH/TEXTURE/00 reason: PAGE_NOT_PRESENT