splash+KMS+radeon causes screen to freeze

[Alexander Ponyatykh]

I have Radeon HD 7970 video card and I'm using open source radeon driver.
If I try to boot with kernel parameters "quiet splash", system boots normally at first, splash screen is shown, but when it's time to start X server, screen instead shows garbage (http://s014.radikal.ru/i327/1504/3a/281b75b0ef2d.jpg), turns off and on several times, then shows quickly changing pattern (http://s020.radikal.ru/i704/1504/88/b9d2169bca29.jpg). The system don't respond to Ctrl-Alt-F?, but I still can connect using ssh. "reboot" doesn't work. kern.log has following error messages:

Apr 14 15:01:52 gurren kernel: [ 35.081980] [drm:si_dpm_set_power_state] *ERROR* si_restrict_performance_levels_before_switch failed
Apr 14 15:01:59 gurren kernel: [ 42.601562] radeon 0000:01:00.0: Saved 193 dwords of commands on ring 0.
Apr 14 15:01:59 gurren kernel: [ 42.601606] radeon 0000:01:00.0: GPU softreset: 0x0000016C
Apr 14 15:01:59 gurren kernel: [ 42.601608] radeon 0000:01:00.0: GRBM_STATUS = 0xA0003028
Apr 14 15:01:59 gurren kernel: [ 42.601609] radeon 0000:01:00.0: GRBM_STATUS_SE0 = 0x00000006
Apr 14 15:01:59 gurren kernel: [ 42.601610] radeon 0000:01:00.0: GRBM_STATUS_SE1 = 0x00000006
Apr 14 15:01:59 gurren kernel: [ 42.601611] radeon 0000:01:00.0: SRBM_STATUS = 0x200206C0
Apr 14 15:01:59 gurren kernel: [ 42.601645] radeon 0000:01:00.0: SRBM_STATUS2 = 0x00000000
Apr 14 15:01:59 gurren kernel: [ 42.601646] radeon 0000:01:00.0: R_008674_CP_STALLED_STAT1 = 0x00000000
Apr 14 15:01:59 gurren kernel: [ 42.601647] radeon 0000:01:00.0: R_008678_CP_STALLED_STAT2 = 0x00000000
Apr 14 15:01:59 gurren kernel: [ 42.601648] radeon 0000:01:00.0: R_00867C_CP_BUSY_STAT = 0x00000802
Apr 14 15:01:59 gurren kernel: [ 42.601649] radeon 0000:01:00.0: R_008680_CP_STAT = 0x800000E3
Apr 14 15:01:59 gurren kernel: [ 42.601650] radeon 0000:01:00.0: R_00D034_DMA_STATUS_REG = 0x44C83506
Apr 14 15:01:59 gurren kernel: [ 42.601651] radeon 0000:01:00.0: R_00D834_DMA_STATUS_REG = 0x44E83566
Apr 14 15:01:59 gurren kernel: [ 42.601652] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000000
Apr 14 15:01:59 gurren kernel: [ 42.601653] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x00000000
Apr 14 15:02:00 gurren kernel: [ 43.280219] radeon 0000:01:00.0: Wait for MC idle timedout !
Apr 14 15:02:00 gurren kernel: [ 43.280222] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x0000DDFF
Apr 14 15:02:00 gurren kernel: [ 43.280273] radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00100540
Apr 14 15:02:00 gurren kernel: [ 43.281420] radeon 0000:01:00.0: GRBM_STATUS = 0x00003028
Apr 14 15:02:00 gurren kernel: [ 43.281421] radeon 0000:01:00.0: GRBM_STATUS_SE0 = 0x00000006
Apr 14 15:02:00 gurren kernel: [ 43.281422] radeon 0000:01:00.0: GRBM_STATUS_SE1 = 0x00000006
Apr 14 15:02:00 gurren kernel: [ 43.281423] radeon 0000:01:00.0: SRBM_STATUS = 0x200006C0
Apr 14 15:02:00 gurren kernel: [ 43.281457] radeon 0000:01:00.0: SRBM_STATUS2 = 0x00000000
Apr 14 15:02:00 gurren kernel: [ 43.281458] radeon 0000:01:00.0: R_008674_CP_STALLED_STAT1 = 0x00000000
Apr 14 15:02:00 gurren kernel: [ 43.281459] radeon 0000:01:00.0: R_008678_CP_STALLED_STAT2 = 0x00000000
Apr 14 15:02:00 gurren kernel: [ 43.281460] radeon 0000:01:00.0: R_00867C_CP_BUSY_STAT = 0x00000000
Apr 14 15:02:00 gurren kernel: [ 43.281461] radeon 0000:01:00.0: R_008680_CP_STAT = 0x00000000
Apr 14 15:02:00 gurren kernel: [ 43.281462] radeon 0000:01:00.0: R_00D034_DMA_STATUS_REG = 0x44C83D57
Apr 14 15:02:00 gurren kernel: [ 43.281463] radeon 0000:01:00.0: R_00D834_DMA_STATUS_REG = 0x44C83D57
Apr 14 15:02:00 gurren kernel: [ 43.281543] radeon 0000:01:00.0: GPU reset succeeded, trying to resume
Apr 14 15:02:05 gurren kernel: [ 48.292813] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
Apr 14 15:02:05 gurren kernel: [ 48.292816] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing C973 (len 254, WS 0, PS 4) @ 0xC99D
Apr 14 15:02:05 gurren kernel: [ 48.292817] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing C009 (len 106, WS 0, PS 8) @ 0xC05E
Apr 14 15:02:05 gurren kernel: [ 48.296773] [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e
Apr 14 15:02:05 gurren kernel: [ 48.296775] [drm] PCIE gen 3 link speeds already enabled
Apr 14 15:02:05 gurren kernel: [ 48.558122] radeon 0000:01:00.0: Wait for MC idle timedout !
Apr 14 15:02:05 gurren kernel: [ 48.688713] radeon 0000:01:00.0: Wait for MC idle timedout !
Apr 14 15:02:05 gurren kernel: [ 48.690354] [drm] PCIE GART of 1024M enabled (table at 0x0000000000276000).
Apr 14 15:02:05 gurren kernel: [ 48.690440] radeon 0000:01:00.0: WB enabled
Apr 14 15:02:05 gurren kernel: [ 48.690442] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x00000000c0000c00 and cpu addr 0xffff88020f636c00
Apr 14 15:02:05 gurren kernel: [ 48.690443] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x00000000c0000c04 and cpu addr 0xffff88020f636c04
Apr 14 15:02:05 gurren kernel: [ 48.690444] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x00000000c0000c08 and cpu addr 0xffff88020f636c08
Apr 14 15:02:05 gurren kernel: [ 48.690445] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x00000000c0000c0c and cpu addr 0xffff88020f636c0c
Apr 14 15:02:05 gurren kernel: [ 48.690446] radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x00000000c0000c10 and cpu addr 0xffff88020f636c10
Apr 14 15:02:05 gurren kernel: [ 48.690813] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc90005ab5a18
Apr 14 15:02:05 gurren kernel: [ 48.968423] [drm:r600_ring_test] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)
Apr 14 15:02:05 gurren kernel: [ 48.968425] [drm:si_resume] *ERROR* si startup failed on resume

If I ether add "nomodeset" or remove "splash" from kernel command line system boots normally.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-34-generic 3.16.0-34.47
ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ranma 5617 F.... pulseaudio
 /dev/snd/controlC1: ranma 5617 F.... pulseaudio
CurrentDesktop: KDE
Date: Tue Apr 14 16:43:04 2015
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
MachineType: ASUS All Series
ProcFB:
 0 radeondrmfb
 1 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.16.0-34-generic root=UUID=cb5dacd2-d63f-4cf5-a9fa-0ec0f85ec4b4 ro rootflags=subvol=@ drm.debug=0x06
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-34-generic N/A
 linux-backports-modules-3.16.0-34-generic N/A
 linux-firmware 1.138.1
RfKill:

SourcePackage: linux
UpgradeStatus: Upgraded to utopic on 2014-10-29 (166 days ago)
dmi.bios.date: 04/23/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0329
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97-C
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0329:bd04/23/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ97-C:rvrRevX.0x:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS

[Alexander Ponyatykh (lazyranma)]

kern.log from unsuccessful boot

[Alexander Ponyatykh (lazyranma)]

kern.log from successful boot (without splash option)

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-vivid/

[Alexander Ponyatykh (lazyranma)]

Fixed in 4.0