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Re: Upcoming Qt switch to OpenGL ES on arm64

On Sat, 2018-11-24 at 15:21 +0000, Simon McVittie wrote:
> Recent AMD GPUs use the "amdgpu" kernel driver and its accompanying Mesa
> user-space driver, which is an open source stack if you don't count the
> GPU firmware. It should be comparable to the situation on Intel integrated
> GPUs (but a lot faster and more featureful, and probably with more bugs,
> because the hardware is faster and more featureful). Expect to need a
> recent (buster/sid) kernel, particularly for newer hardware.

I installed an AMD RX550 based card last year.  It required updates to
the kernel, firmware, X driver, and Mesa, which are all available in

> Old ATI/AMD GPUs can use the radeon driver stack, which is also open
> source (except for firmware) and comparable to Intel integrated GPUs
> (generally faster and more featureful for hardware of equivalent age).
> I think there might be some intermediate models that are too new for
> radeon but too old for amdgpu; if they exist, those will be stuck with
> the proprietary fglrx driver, which as far as I can tell is like the
> NVidia proprietary driver, but worse. fglrx is no longer supported by
> Debian contrib/non-free.

I'm not aware of any gap.  In fact, at the kernel level, there is some
overlap where the newest models supported by radeon are also supported
(on an opt-in basis) by amdgpu.

The proprietary AMD graphics stack now depends on the amdgpu kernel
driver rather than replacing it.


Ben Hutchings
I'm always amazed by the number of people who take up solipsism because
they heard someone else explain it. - E*Borg on alt.fan.pratchett

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