On 9/8/26 13:31, Ville Syrjälä wrote:
> On Tue, Aug 04, 2026 at 06:01:54AM +0000, Haram Choi wrote:
>> I think I have found the commit. It is not in drivers/pci at all, and
>> my previous suspicion of 94555ea9a048 was wrong. Apologies to Simon
>> for the noise.
>>
>> The regression is:
>>
>> cc6ed470caa2 ("drm/i915/vga: Avoid VGA arbiter during
>> intel_vga_disable() for iGPUs")
>> Ville Syrjala <[email protected]>, 2025-12-08
>>
>> I have added Ville, intel-gfx and dri-devel to Cc.
>[...]
>
> Sounds to me like the best fix would be to explicitly enable
> 16 bit decoding on the bridges on these machines. That would
> guarantee that apple-gmux works regardless of which GPU
> drivers are loaded, and in which order.
Was this regression ever addressed? From the outside it looks like it
feel through the cracks, but well, it easy to miss something from where
I stand.
Ciao, Thorsten
