Bug#854771: linux kernel 4.9 causes vt and xserver freeze/not display
Package: linux-image-4.9.0-1-amd64
Version: 4.9.6-3
Everything works under kernel 4.8, but have display problems
with x-server, virtual terminals when booting 4.9. Diffs reveal
that the two kernels load different firmware for the graphics card.
Symptoms:
graphics card is wired up to drive three displays.
When xserver/gdm greater starts, third screen never
lights up; monitor states "no input signal".
virtual terminal switching (alt-pf1 through alt-pf6) fails
to change the display. The vt switch did occur: I can
blindly login to a virtual terminal, and run commands
in it; display stays frozen.
Killing/starting X11 fails to do anything at all to display:
no blinking, no refresh; display is frozen.
Graphics hardware:
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Tonga PRO [Radeon R9 285/380] (rev f1)
Diffing the failed and the good boots, I see different firmware
being loaded for these two kernels. Failing boot loads
amdgpu/tonga_k_smc.bin while the working boot loads
amdgpu/tonga_smc.bin
Failing boot looks like this:
cat /var/log/kern.log |grep firmware
Feb 9 21:52:37 fanny kernel: [ 4.240162] GHES: APEI firmware first
mode is enabled by WHEA _OSC.
Feb 9 21:52:37 fanny kernel: [ 10.419654] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_mc.bin
Feb 9 21:52:37 fanny kernel: [ 10.448529] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_pfp.bin
Feb 9 21:52:37 fanny kernel: [ 10.462440] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_me.bin
Feb 9 21:52:37 fanny kernel: [ 10.468253] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_ce.bin
Feb 9 21:52:37 fanny kernel: [ 10.475209] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_rlc.bin
Feb 9 21:52:37 fanny kernel: [ 10.477127] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_mec.bin
Feb 9 21:52:37 fanny kernel: [ 10.478621] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_mec2.bin
Feb 9 21:52:37 fanny kernel: [ 10.480364] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_sdma.bin
Feb 9 21:52:37 fanny kernel: [ 10.480600] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_sdma1.bin
Feb 9 21:52:37 fanny kernel: [ 10.482542] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_uvd.bin
Feb 9 21:52:37 fanny kernel: [ 10.482548] [drm] Found UVD firmware
Version: 1.65 Family ID: 10
Feb 9 21:52:37 fanny kernel: [ 10.483839] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_vce.bin
Feb 9 21:52:37 fanny kernel: [ 10.483844] [drm] Found VCE firmware
Version: 52.8 Binary ID: 3
Feb 9 21:52:37 fanny kernel: [ 10.681430] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_k_smc.bin
Working boot looks like this:
cat /var/log/kern.log |grep firmware
Feb 9 21:56:39 fanny kernel: [ 4.123908] GHES: APEI firmware first
mode is enabled by WHEA _OSC.
Feb 9 21:56:39 fanny kernel: [ 9.326443] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_mc.bin
Feb 9 21:56:39 fanny kernel: [ 9.738087] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_pfp.bin
Feb 9 21:56:39 fanny kernel: [ 9.738518] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_me.bin
Feb 9 21:56:39 fanny kernel: [ 9.738820] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_ce.bin
Feb 9 21:56:39 fanny kernel: [ 9.739161] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_rlc.bin
Feb 9 21:56:39 fanny kernel: [ 9.745141] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_mec.bin
Feb 9 21:56:39 fanny kernel: [ 9.746675] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_mec2.bin
Feb 9 21:56:39 fanny kernel: [ 9.747554] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_sdma.bin
Feb 9 21:56:39 fanny kernel: [ 9.747784] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_sdma1.bin
Feb 9 21:56:39 fanny kernel: [ 9.749821] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_uvd.bin
Feb 9 21:56:39 fanny kernel: [ 9.749828] [drm] Found UVD firmware
Version: 1.65 Family ID: 10
Feb 9 21:56:39 fanny kernel: [ 9.751288] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_vce.bin
Feb 9 21:56:39 fanny kernel: [ 9.751293] [drm] Found VCE firmware
Version: 52.8 Binary ID: 3
Feb 9 21:56:39 fanny kernel: [ 9.854098] amdgpu 0000:04:00.0:
firmware: direct-loading firmware amdgpu/tonga_smc.bin
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