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Users / Re: Video: Black screen but sound!
« on: August 25, 2011, 11:01:26 pm »
Exactly what I suspected... Alpha rendering in NVidia is broken since
works:
libnvidia-tls.so.260.19.29 => /usr/lib/nvidia-glx-260/tls/libnvidia-tls.so.260.19.29 (0x00352000)
libnvidia-tls.so.270.41.06 => /usr/lib/tls/libnvidia-tls.so.270.41.06 (0x0056e000)
libnvidia-glcore.so.260.19.29 => /usr/lib/nvidia-glx-260/libnvidia-glcore.so.260.19.29 (0x02e64000)
libnvidia-glcore.so.270.41.06 => /usr/lib/libnvidia-glcore.so.270.41.06 (0x12952000)
broken:
libnvidia-tls.so.260.19.29 => /usr/lib/nvidia-glx-260/tls/libnvidia-tls.so.260.19.29 (0x00649000)
libnvidia-tls.so.280.13 => /usr/lib/tls/libnvidia-tls.so.280.13 (0x0056e000)
libnvidia-glcore.so.280.13 => /usr/lib/libnvidia-glcore.so.280.13 (0x1621b000)
libnvidia-glcore.so.260.19.29 => /usr/lib/nvidia-glx-260/libnvidia-glcore.so.260.19.29 (0x023c5000)
@totallymaxed: did you have a chance to further pinpoint the problem in the Orbiter?
IMO it seems that the driver is discarding the alpha byte. I recall a bug in older nvidia drivers that handled values of 255 wrong, maybe we are being hit by something like this.
works:
libnvidia-tls.so.260.19.29 => /usr/lib/nvidia-glx-260/tls/libnvidia-tls.so.260.19.29 (0x00352000)
libnvidia-tls.so.270.41.06 => /usr/lib/tls/libnvidia-tls.so.270.41.06 (0x0056e000)
libnvidia-glcore.so.260.19.29 => /usr/lib/nvidia-glx-260/libnvidia-glcore.so.260.19.29 (0x02e64000)
libnvidia-glcore.so.270.41.06 => /usr/lib/libnvidia-glcore.so.270.41.06 (0x12952000)
broken:
libnvidia-tls.so.260.19.29 => /usr/lib/nvidia-glx-260/tls/libnvidia-tls.so.260.19.29 (0x00649000)
libnvidia-tls.so.280.13 => /usr/lib/tls/libnvidia-tls.so.280.13 (0x0056e000)
libnvidia-glcore.so.280.13 => /usr/lib/libnvidia-glcore.so.280.13 (0x1621b000)
libnvidia-glcore.so.260.19.29 => /usr/lib/nvidia-glx-260/libnvidia-glcore.so.260.19.29 (0x023c5000)
@totallymaxed: did you have a chance to further pinpoint the problem in the Orbiter?
IMO it seems that the driver is discarding the alpha byte. I recall a bug in older nvidia drivers that handled values of 255 wrong, maybe we are being hit by something like this.