[drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed

[alicektx]

Hello linrunner,
using TLP 0.9, Mint 18, and kernel 4.10.0-19-generic, on Lenovo Ideapad 300 with hybrid graphics (Intel & Radeon).

I get the following error message when the laptop boots on AC:

May 23 02:59:31 Lenovo-300-17ISK kernel: [ 26.336643] [drm:r600_ring_test [radeon]] ERROR radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)
May 23 02:59:31 Lenovo-300-17ISK kernel: [ 26.336690] [drm:si_resume [radeon]] ERROR si startup failed on resume

That is the default TLP configuration, unchanged. What i further tried out:

1. I changed / enabled RUNTIME_PM_BLACKLIST="03:00.0"
   [where 03:00.0 is according to lspci:
   Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330] (rev 83)].
2. Then, in addition to the above, i also further removed 'radeon' from "RUNTIME_PM_DRIVER_BLACKLIST=".
   In both cases, same behavior - only when uninstalling TLP, boot & logs appear to be ok again....

However, i noticed that i get no such error messages when I boot on battery instead of AC.

One more note: on older 4.4x kernels, no such errors as well - so i'm kinda puzzled now...is it a matter of 4.10, tlp or possibly a combination of both?
tlp-log.zip

I've attached a couple of kern / syslog files in case it's of any help...

All the best & thanks in advance for your reply.

PS: Sorry, forgot mentioning above: in the logs, after May 23 07:05:19 is with TLP temporarily uninstalled.

[linrunner]

Hi,

the most important part is missing: the full output of

sudo tlp-stat

after AC boot and – for comparison – on BAT too. Thanks.

Via Gist – no attachments please.

[alicektx]

Hi linrunner,
here is on battery, right after boot:
https://gist.github.com/alicektx/69ea23dd91e81aa5e1900d8e70601af5

And after booting on AC:
https://gist.github.com/alicektx/81ae88facd79f21ed7aeb6024dc39ad4

I've further tested with "radeon.nopm=0" parameter passed to grub, in which case, the warnings that appear with TLP on AC disappear (however, at the penalty of the battery lasting afterwards for at least 40% less time than before). So maybe it's also a 4.10x kernel version problem and not a TLP issue per se?

Thanks in advance for any further help / assistance.

[linrunner]

The great majority of issues with TLP are in fact bugs in a kernel driver's pm features.

(1) RUNTIME_PM_BLACKLIST="03:00.0" is not configured currently. But this is not important, because driver blacklisting via RUNTIME_PM_DRIVER_BLACKLIST="radeon ..." actually works as the AC output shows:

sys/bus/pci/devices/0000:03:00.0/power/control = auto (0x038000, Display controller, radeon)

"auto" is the driver default and shows that TLP didn't touch the setting. All other devices are "on".

(2) TLP uses DPM too

+++ Radeon Graphics
/sys/class/drm/card1/device/power_dpm_state = performance
/sys/class/drm/card1/device/power_dpm_force_performance_level = off

and this seems to be the root of your error message. You may remove your boot option and try either to disable DPM on AC by commenting

#RADEON_DPM_STATE_ON_AC=performance

or try the BAT setting

RADEON_DPM_STATE_ON_AC=battery

[alicektx]

Hi linrunner,
deeply thanks for all of your help & support, i really appreciate it, and also sorry for being somewhat late in my reply - as i had to further google quite a bit to get an idea of why / when those specific errors pop up.

None of the TLP tweaks above seem to remove the errors unfortunately - however, i'm convinced 110% this behavior is merely 'triggered' by TLP, and the underlying problem certainly lies very deep elsewhere. By far the most interesting & very similar bug report / thread that i stumbled upon was in Arch's forums here (with kernel 4.8x, yet the very same radeon card...):
https://bbs.archlinux.org/viewtopic.php?id=218909
Thereby i'm closing this...

All the best & thanks again for all!

[HeadstrongCatgirl]

Hi. I've encountered the same problem with the same laptop on ubuntu 16.04.