[Bug 65761] HD 7970M Hybrid - hangs and errors and rmmod causes crash

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https://bugzilla.kernel.org/show_bug.cgi?id=65761

--- Comment #36 from Hohahiu <rakothedin@gmail.com> ---
(In reply to Alex Deucher from comment #35)
> (In reply to Christoph Haag from comment #33)
> > But I have an awful lot of this block in dmesg, I guess from every time
> > starting X:
> 
> Those are the messages from the driver each time the card is powered off or
> on.
> 
> > 
> > [Feb 6 13:39] [drm] Disabling audio 0 support
> > [  +0,000004] [drm] Disabling audio 1 support
> > [  +0,000002] [drm] Disabling audio 2 support
> > [  +0,000001] [drm] Disabling audio 3 support
> > [  +0,000001] [drm] Disabling audio 4 support
> > [  +0,000002] [drm] Disabling audio 5 support
> 
> Card is powered off.
> 
> 
> > [  +1,257992] [drm] probing gen 2 caps for device 8086:151 = 261ad01/e
> > [  +0,000005] [drm] PCIE gen 3 link speeds already enabled
> > [  +0,004127] [drm] PCIE GART of 1024M enabled (table at 0x0000000000478000).
> > [  +0,000102] radeon 0000:01:00.0: WB enabled
> > [  +0,000004] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr
> > 0x0000000080000c00 and cpu addr 0xffff8807fd9f8c00
> > [  +0,000003] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr
> > 0x0000000080000c04 and cpu addr 0xffff8807fd9f8c04
> > [  +0,000002] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr
> > 0x0000000080000c08 and cpu addr 0xffff8807fd9f8c08
> > [  +0,000002] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr
> > 0x0000000080000c0c and cpu addr 0xffff8807fd9f8c0c
> > [  +0,000002] radeon 0000:01:00.0: fence driver on ring 4 use gpu addr
> > 0x0000000080000c10 and cpu addr 0xffff8807fd9f8c10
> > [  +0,000390] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr
> > 0x0000000000075a18 and cpu addr 0xffffc90008b35a18
> > [  +0,144839] [drm] ring test on 0 succeeded in 2 usecs
> > [  +0,000004] [drm] ring test on 1 succeeded in 1 usecs
> > [  +0,000003] [drm] ring test on 2 succeeded in 1 usecs
> > [  +0,000059] [drm] ring test on 3 succeeded in 2 usecs
> > [  +0,000007] [drm] ring test on 4 succeeded in 1 usecs
> > [  +0,187260] [drm] ring test on 5 succeeded in 2 usecs
> > [  +0,000004] [drm] UVD initialized successfully.
> > [  +0,001745] [drm] Enabling audio 0 support
> > [  +0,000001] [drm] Enabling audio 1 support
> > [  +0,000000] [drm] Enabling audio 2 support
> > [  +0,000001] [drm] Enabling audio 3 support
> > [  +0,000001] [drm] Enabling audio 4 support
> > [  +0,000001] [drm] Enabling audio 5 support
> > [  +0,000035] [drm] ib test on ring 0 succeeded in 0 usecs
> > [  +0,000029] [drm] ib test on ring 1 succeeded in 0 usecs
> > [  +0,000029] [drm] ib test on ring 2 succeeded in 0 usecs
> > [  +0,000019] [drm] ib test on ring 3 succeeded in 0 usecs
> > [  +0,000018] [drm] ib test on ring 4 succeeded in 0 usecs
> > [  +0,158619] [drm] ib test on ring 5 succeeded
> 
> Card is powered back on.

Thanks for explanation. In my case sometimes the card is powered on and off a
lot of times without any explicit use.

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