Bug 97931

Summary: GPU lockup with Radeon HD 4670
Product: Drivers Reporter: joe.r.floss.user
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Status: NEW ---    
Severity: normal CC: alexdeucher, szg00000
Priority: P1    
Hardware: x86-64   
OS: Linux   
Kernel Version: 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3 (2015-04-23) x86_64 GNU/Linux Subsystem:
Regression: No Bisected commit-id:
Attachments: xserver-xorg package info
Kernel log for GPU lockup
dmesg output
Xorg.log
Info related to the xserver-xorg package

Description joe.r.floss.user 2015-05-08 15:55:05 UTC 
Created attachment 176201 [details]
xserver-xorg package info

Hello,

I have a bug that regularly happens when running FlightGear (which uses OpenGL a lot). The kernel messages are very similar to those from bug 68571 ("GPU lockup on AMD Radeon HD6850 with DPM=1"). The symptoms are: screen goes blank for a few seconds, reappears, goes blank again, reappears garbled, alternates between blank and garbled a few times, and if I don't reboot quickly enough, I seem to recall (not sure about this one) that the whole system may crash in a way that requires a hard reset. My kernel command line is:

BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-amd64 root=UUID=... ro init=/bin/systemd ipv6.disable=1

This bug is present on Debian unstable, I had it yesterday; it is also present in the just-released jessie. I am attaching the kernel log from yesterday's occurrence of the bug. My graphics adapter is:

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV730 XT [Radeon HD 4670] (prog-if 00 [VGA controller])
        Subsystem: PC Partner Limited / Sapphire Technology Device e100
        Flags: bus master, fast devsel, latency 0, IRQ 50
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at fb9e0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at be00 [size=256]
        [virtual] Expansion ROM at fb900000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
        Kernel driver in use: radeon

If there is something I can test to help solve this bug, please say so. I wonder if there are graphics adapters with decent OpenGL support using free drivers that don't suffer from this kind of bug...

Thanks
Comment 1 Alex Deucher 2015-05-08 15:57:03 UTC 
Please attach your xorg log and dmesg output.
Comment 2 joe.r.floss.user 2015-05-08 15:58:51 UTC 
Created attachment 176211 [details]
Kernel log for GPU lockup

Kernel log obtained with [AMD/ATI] RV730 XT [Radeon HD 4670] (driver: radeon)
Comment 3 joe.r.floss.user 2015-05-08 16:05:15 UTC 
dmesg output is now attached. As for the Xorg log, I don't have one corresponding to the lockup, unfortunately. I can attach a current one, or wait for the next lockup and make sure I keep the log this time. Sorry, and thanks for your help!
Comment 4 joe.r.floss.user 2015-05-09 09:50:23 UTC 
Created attachment 176271 [details]
dmesg output
Comment 5 joe.r.floss.user 2015-05-09 09:51:50 UTC 
Created attachment 176281 [details]
Xorg.log
Comment 6 joe.r.floss.user 2015-05-09 09:53:07 UTC 
Created attachment 176291 [details]
Info related to the xserver-xorg package
Comment 7 joe.r.floss.user 2015-05-09 09:59:01 UTC 
Hello,

I had the lockup again this morning. I attached 3 files corresponding to this lockup: dmesg output, Xorg.log and data gathered by reportbug for the xserver-xorg package (which includes versions of related packages).

I could work in a virtual console after the lockup once I stopped kdm, however restarting it was useless because it immediately started with garbled display.

Thanks