[SOLVED] Radeon driver crash after upgrading to 3.14.14

emailer33 · n00b Joined: 10 Sep 2006 Posts: 18

Yesterday I upgraded to 3.14.14 kernel (copying .config from the old kernel, and make menuconfig to check any major changes), I went to reboot and my system would crash to a blackscreen on boot. I narrowed it down to the radeon module, as when I would modprobe it I immediately got a black screen and the system would become unresponsive. I could not ssh into it, nor would the SysRq key combination reboot (REISUB).

Here is /var/log/messages when I login and issue 'modprobe radeon'

DONAHUE · Posted: Tue Sep 23, 2014 12:22 am Post subject:

did you

emailer33 · n00b Joined: 10 Sep 2006 Posts: 18

Yes. I actually ran that exact command off of another forum post that resulted in rebuilding:

DONAHUE · Posted: Sat Sep 27, 2014 1:48 am Post subject:

if you have enabled radeon in a kernel and installed ati-drivers to that same kernel you should be extremely lucky if either ever works. Either ati-drivers (fglrx) or radeon; not both. Both in my experience =-neither.
My fglrx kernel config:

SeeksTheMoon · Apprentice Joined: 24 Sep 2003 Posts: 163

I don't know if it is the same problem but my computer also has problems after upgrading to a Radeon SI: black random flickers 20s long or so while browsing the web and stuff like that... (it is like a hangup)
It helped to use bleeding edge software everywhere: git kernel, llvm, mesa, xf86-video-ati and xserver. Now it is down from flickering every five minutes to a flicker per day or so.

The fglrx driver may be good for gaming but it sucks on the desktop, the opensource driver is much better for the desktop experience but does not work that well for gaming. The card works awesome on Windows though.

Ant P. · Watchman Joined: 18 Apr 2009 Posts: 6920

That sounds like an actual hangup. If you check dmesg it should have printed a message about resetting the card after a crash. I've seen it happen a lot while messing around with compute shaders and other experimental stuff (particularly WebGL).

emailer33 · n00b Joined: 10 Sep 2006 Posts: 18

Well I was finally able to get more out of it by issuing 'modprobe radeon; sync' and reading the messages file from a usb boot disk.

SeeksTheMoon · Apprentice Joined: 24 Sep 2003 Posts: 163

Which version of radeon-ucode or linux-firmware do you use? Could the package be too old?
It could also be a kernel problem. I had lockups and such two times with new kernel releases, waited a week for the next release which then worked.
Did you try vanilla-sources or a newer kernel? Maybe it is a gentoo patch that introduces some console graphics bs.

(If you are going to use kernel 3.15 you will also need to load radeon/PITCAIRN_mc2.bin according to https://wiki.gentoo.org/wiki/Radeon, it probably does not hurt to add the file.)

kurisu · Posted: Mon Sep 29, 2014 7:03 pm Post subject:

It's a shot in the dark, but this could be related to Dynamic Power Management (dpm). What happens if you add

emailer33 · n00b Joined: 10 Sep 2006 Posts: 18

kurisu · Posted: Wed Oct 08, 2014 1:19 am Post subject:

Excellent. With the difference that I have a Radeon HD 8670D (A10-6700 APU) I experience the exact same issue since upgrading from stable gentoo-sources 3.12 to 3.14. As a brief look on kernel upstream reveals, fixes are obviously in the works or already implemented in later releases. However, running Gentoo's stable branch exclusively, I haven't tried newer kernel versions yet. For the time being, I'm fine with dpm being manually disabled.

kernelOfTruth · Posted: Thu Oct 09, 2014 11:02 pm Post subject:

related & for reference:

https://bugs.freedesktop.org/show_bug.cgi?id=81644
https://bugs.freedesktop.org/show_bug.cgi?id=79980

Juniper is not a radeonsi class card, I believe

but I've read about related hangups, hardlocks and crashes about those cards also
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Hardcore Gentoo Linux user since 2004

schnitz81 · n00b Joined: 05 Dec 2011 Posts: 10 Location: Sweden

I'd like to contribute with an additional workaround in case someone else is having trouble. To me, the dpm setting made no difference and I kept getting the "Packet0 not allowed!" in the kernel log. But after days of frustration and lockups, I figured out that my GPU issues was due to the power profile.

First, try the radeon.dpm=0 mentioned earlier in the thread.

If you're still getting lockups you might need to set your power profile to "high". First, find the power_profile file in the /sys/ subfolders:

kurisu · Posted: Wed Oct 15, 2014 9:12 pm Post subject:

Fixed for me with =sys-kernel/gentoo-sources-3.16.5 which is currently being stabilized. Seems like dpm is now working for my gpu as expected: