[Bug 99881] Lockup/Freezes on Laptop with switchable graphics

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=99881

--- Comment #9 from Matthew Fox <matthew@tech3.me> ---
(In reply to Michel Dänzer from comment #8)
> Please attach the corresponding Xorg log file.

Hi,

The only Xorg logs I have are for my new session. They weren't in /var/log/ but

/home/matthew/.local/share/xorg/Xorg.1.log
/var/lib/gdm3/.local/share/xorg/Xorg.0.log

for some reason. They are attached.

Also attached is a dmesg log for my current session.

When I said:

With previous ubuntu/kernel versions, the main issue was the freezing which
would happen every seven seconds with the corresponding dmesg block. This would
continue ad infinitum, although on rare occasions it would stop after many
freezes. However with my current kernel this pattern doesn't seem to occur - it
freezes a few times before the freezing stops and the freezes do not occur at
regular intervals.

- this seems to be true of my current kernel. From the current dmesg.log, the
'Disabling via vga_switcheroo' happened at 14, 33, 41 and finally 48 (seven
seconds apart, except 14-33):

[   14.146303] snd_hda_intel 0000:02:00.1: Disabling via vga_switcheroo
[   15.586313] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[   15.588655] [drm] PCIE GART of 512M enabled (table at 0x000000000014C000).
[   15.588728] radeon 0000:02:00.0: WB enabled
[   15.588731] radeon 0000:02:00.0: fence driver on ring 0 use gpu addr
0x0000000020000c00 and cpu addr 0xffff90180fa71c00
[   15.588733] radeon 0000:02:00.0: fence driver on ring 3 use gpu addr
0x0000000020000c0c and cpu addr 0xffff90180fa71c0c
[   15.589099] radeon 0000:02:00.0: fence driver on ring 5 use gpu addr
0x000000000005c418 and cpu addr 0xffffbdbf41a1c418
[   15.605265] [drm] ring test on 0 succeeded in 1 usecs
[   15.605270] [drm] ring test on 3 succeeded in 2 usecs
[   15.791907] [drm] ring test on 5 succeeded in 1 usecs
[   15.791914] [drm] UVD initialized successfully.
[   15.791956] [drm] ib test on ring 0 succeeded in 0 usecs
[   15.791986] [drm] ib test on ring 3 succeeded in 0 usecs
[   16.482332] [drm] ib test on ring 5 succeeded
[   16.515177] snd_hda_intel 0000:02:00.1: Enabling via vga_switcheroo
[   16.619344] snd_hda_intel 0000:02:00.1: CORB reset timeout#2, CORBRP = 65535

[   33.089549] snd_hda_intel 0000:02:00.1: Disabling via vga_switcheroo
[   33.389563] snd_hda_intel 0000:02:00.1: Cannot lock devices!
[   34.733597] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[   34.735932] [drm] PCIE GART of 512M enabled (table at 0x000000000014C000).
[   34.736006] radeon 0000:02:00.0: WB enabled
[   34.736009] radeon 0000:02:00.0: fence driver on ring 0 use gpu addr
0x0000000020000c00 and cpu addr 0xffff90180fa71c00
[   34.736011] radeon 0000:02:00.0: fence driver on ring 3 use gpu addr
0x0000000020000c0c and cpu addr 0xffff90180fa71c0c
[   34.736378] radeon 0000:02:00.0: fence driver on ring 5 use gpu addr
0x000000000005c418 and cpu addr 0xffffbdbf41a1c418
[   34.753251] [drm] ring test on 0 succeeded in 1 usecs
[   34.753256] [drm] ring test on 3 succeeded in 2 usecs
[   34.939919] [drm] ring test on 5 succeeded in 1 usecs
[   34.939926] [drm] UVD initialized successfully.
[   34.939969] [drm] ib test on ring 0 succeeded in 0 usecs
[   34.940006] [drm] ib test on ring 3 succeeded in 0 usecs
[   35.617560] [drm] ib test on ring 5 succeeded
[   35.650390] snd_hda_intel 0000:02:00.1: Enabling via vga_switcheroo
[   35.753848] snd_hda_intel 0000:02:00.1: CORB reset timeout#2, CORBRP = 65535

[   41.025246] snd_hda_intel 0000:02:00.1: Disabling via vga_switcheroo
[   41.325632] snd_hda_intel 0000:02:00.1: Cannot lock devices!
[   42.665278] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[   42.667593] [drm] PCIE GART of 512M enabled (table at 0x000000000014C000).
[   42.667666] radeon 0000:02:00.0: WB enabled
[   42.667670] radeon 0000:02:00.0: fence driver on ring 0 use gpu addr
0x0000000020000c00 and cpu addr 0xffff90180fa71c00
[   42.667671] radeon 0000:02:00.0: fence driver on ring 3 use gpu addr
0x0000000020000c0c and cpu addr 0xffff90180fa71c0c
[   42.668038] radeon 0000:02:00.0: fence driver on ring 5 use gpu addr
0x000000000005c418 and cpu addr 0xffffbdbf41a1c418
[   42.684185] [drm] ring test on 0 succeeded in 1 usecs
[   42.684189] [drm] ring test on 3 succeeded in 2 usecs
[   42.870780] [drm] ring test on 5 succeeded in 1 usecs
[   42.870784] [drm] UVD initialized successfully.
[   42.870821] [drm] ib test on ring 0 succeeded in 0 usecs
[   42.870850] [drm] ib test on ring 3 succeeded in 0 usecs
[   43.553259] [drm] ib test on ring 5 succeeded
[   43.582109] snd_hda_intel 0000:02:00.1: Enabling via vga_switcheroo
[   43.685717] snd_hda_intel 0000:02:00.1: CORB reset timeout#2, CORBRP = 65535

[   48.960919] snd_hda_intel 0000:02:00.1: Disabling via vga_switcheroo
[   49.261324] snd_hda_intel 0000:02:00.1: Cannot lock devices!

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