I seem to be having very flakey behavior with nvidia-graphics-switch
in that sometimes it works but most times it seems to leave the
X-server in a status that won't restart
I use the command as follows:
stop prefdm; nvidia-graphics-switch XX-XX-XX; start prefdm
(note I find that if I don't "sandwich" it between stopping and
starting prefdm, then the existing nvidia module can't be removed and
replaced since it is in use).
This is what happens typically:
1. First time through:
I get an error (on debugging nvidia-graphics-switch):
FATAL: Module char_major_195 not found.
So, the new nvidia modules isn't loaded.
3. Subsequent times:
Either it works or more frequently I keep getting the following error:
when running "start prefdm":
start: prefdm respawning too fast, stopped
It's unclear to me what eventually causes it to work:
---------------------------
The Xorg.0.log shows:
(EE) NVIDIA: Failed to load the NVIDIA kernel module. Please check
your
(EE) NVIDIA: system's kernel log for additional error messages.
(II) UnloadModule: "nvidia"
(II) Unloading /usr/lib/xorg/modules/drivers/nvidia_drv.so
(EE) Failed to load module "nvidia" (module-specific error, 0)
(EE) No drivers available.
Yet, 'lsmod | grep nvidia' shows the module is indeed loaded (at least
after the second time)
----------------------------------------------------------
Note:
# uname -r
2.6.32.23-170.fc12.i686
# rpm -qa | grep 2.6.32.23-170 | grep nvidia
nvidia-graphics260.19.12-kmdl-2.6.32.23-170.fc12-260.19.12-129.fc12.i686
nvidia-graphics260.19.21-kmdl-2.6.32.23-170.fc12-260.19.21-130.fc12.i686
nvidia-graphics256.53-kmdl-2.6.32.23-170.fc12-256.53-128.fc12.i686
nvidia-graphics195.36.15-kmdl-2.6.32.23-170.fc12-195.36.15-121.fc12.i686
And for completeness:
# rpm -qa | grep nvidia
nvidia-graphics260.19.12-kmdl-2.6.32.23-170.fc12-260.19.12-129.fc12.i686
nvidia-graphics-devices-1.0-6.fc12.noarch
nvidia-graphics-helpers-0.0.29-32.1.fc12.i686
nvidia-graphics195.36.15-libs-195.36.15-121.fc12.i686
nvidia-graphics195.36.15-195.36.15-121.fc12.i686
nvidia-graphics260.19.12-260.19.12-129.fc12.i686
nvidia-graphics260.19.21-260.19.21-130.fc12.i686
nvidia-graphics260.19.21-kmdl-2.6.32.23-170.fc12-260.19.21-130.fc12.i686
nvidia-graphics256.53-kmdl-2.6.32.21-166.fc12-256.53-127.fc12.i686
nvidia-graphics256.53-kmdl-2.6.32.23-170.fc12-256.53-128.fc12.i686
nvidia-graphics-260.19.21-53.i386
nvidia-graphics195.36.15-kmdl-2.6.32.23-170.fc12-195.36.15-121.fc12.i686
nvidia-graphics260.19.12-libs-260.19.12-129.fc12.i686
nvidia-graphics256.53-256.53-128.fc12.i686
nvidia-graphics260.19.21-libs-260.19.21-130.fc12.i686
nvidia-graphics195.36.15-kmdl-2.6.32.21-166.fc12-195.36.15-121.fc12.i686
nvidia-graphics256.53-libs-256.53-128.fc12.i686
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