linux-kernel - Re: radeon Disabling GPU acceleration (WB disabled?)

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Date:   Tue, 22 Oct 2019 18:09:26 +0200
From:   Michel Dänzer <michel@...nzer.net>
To:     Meelis Roos <mroos@...ux.ee>
Cc:     dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: radeon Disabling GPU acceleration (WB disabled?)

On 2019-10-20 11:21 p.m., Meelis Roos wrote:
> I tried 5.2, 5.3 and 5.4-rc4 on my old Fujitsu RX220 with integrated
> Radeon RV100. Dmesg tells that GPU acceleration is disabled. I do not
> know if it has been enabled in the past - no old kernels handy at the
> moment.
> 
> From dmesg it looks like something with MTRR maybe: WB disabled.

That's harmless.


> [    8.535975] [drm] Driver supports precise vblank timestamp query.
> [    8.535981] radeon 0000:00:05.0: Disabling GPU acceleration

This looks like drm_irq_install returns an error in radeon_irq_kms_init.


-- 
Earthling Michel Dänzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer