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Bumblebee-Project / bbswitch

Disable discrete graphics (currently nvidia only)
GNU General Public License v2.0
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Document `acpi_rev_override` kernel parameter #174

Open demurgos opened 6 years ago

demurgos commented 6 years ago

This commit adds documentations for the acpi_rev_override kernel parameter. Setting this parameter is necessary on some computers to avoid black screen at boot time.

See Bumblebee-Project/bbswitch#148

gsgatlin commented 6 years ago

Looks good to me.

demurgos commented 6 years ago

/cc @Lekensteyn @ArchangeGabriel You seem to be active maintainers with write access to the repo. Could you take a look at this PR?

Lekensteyn commented 6 years ago

Hi @demurgos, thanks for the PR! Any modifications should go through the "develop" branch first: https://github.com/Bumblebee-Project/Bumblebee/wiki/Branching-Model (at least, that is how we used to do it).

While the suggestion might work for some Dell models, it is not a general solution, see https://bugzilla.kernel.org/show_bug.cgi?id=156341 and related issues. The problem is also not limited to bbswitch, it also happens when using nouveau (or no module at all) with runtime PM enabled.

So, I am not sure if this is the best place to document this.