Blank screen on X server startup with 256.35 using Quadro NVS 290 on F13 x86_64
I'm running F13 for x86_64 on an Intel Xeon machine w/ 12GB memory. Kernel version is 220.127.116.11-147.fc13.x86_64. When starting the X server using the nvidia 256.35 driver, the screen goes blank, the keyboard goes dead, and the monitor enters power-save mode. When I connect from another machine, top shows me that the X server is using 100% cpu.
If I use akmod-nvidia-195.36.24-1.fc13.5.x86_64 from RPM Fusion, the problem does not occur. However, all later releases of akmod-nvidia from RPM Fusion cause the screen to go blank on startup. I fetched the SRPMs for the working akmod-nvidia and the next release up (which exhibited the blank screen on start-up problem). The only difference between these versions is the addition of the patch NVIDIA_kernel-195.36.24-6120611.diff.txt published by zander in the thread Intel-VT + 195.36.24 = Blank screen. Study of the 256.35 kernel module sources show that this patch is included there too. A reverse patch does not apply cleanly, however.
The patch below allows me to run 256.35 without getting the blank screen. This is definitely not a good fix, but will hopefully point someone in the right direction:
Full bug report attached.
Re: Blank screen on X server startup with 256.35 using Quadro NVS 290 on F13 x86_64
The problem that I reported earlier still exists in 256.52.
I have found, however, that specifying "intel_iommu=off" on the kernel command line makes the problem go away. I would rather not have to do this though.
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