Is there a way of disabling DRM? Or changing i915 config parameters?

28 June 2021, 19:48:52

Is there a way of disabling DRM? Short of "nomodeset", I mean? The vesa driver is probably ancient. AFAIK glamor acceleration is mandatory with modesetting.

Is is possible to change timeout parameters in the kernel config? I haven't touched them yet, I don't know enough.

Code: [Select]

CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1

I can't exclude the possibility that the many hard freezes damaged my harddisk (fsck finds nothing), but I still don't see how that would affect only newer kernels.

Re: Is there a way of disabling DRM? Or changing i915 config parameters?

Reply #1 – 28 June 2021, 21:33:19

Quote from: nokangaroo – on 28 June 2021, 19:48:52

Is there a way of disabling DRM?

Set CONFIG_DRM_I915=n in your kernel config and recompile. Alternatively, blacklist the drm module, but don't expect much to work afterwards. As you said, it's mandatory for modesetting.