I'm now getting radeon GPU lockup with the Ubuntu 5.11.0-25 and 5.11.0-27 kernels. The 5.8.0-63 kernel and all previous work fine.
$ lspci | grep ATI 05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV620 GL [FirePro 2450] 06:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] RV620 GL [FirePro 2450] I use three (of four possible) 1600x1200 LCD monitors on the four FirePro outputs. Selected lines from /var/log/syslog are attached. These are the actual repeating lockup lines: Aug 17 15:20:44 linux kernel: [ 7403.029720] radeon 0000:06:00.0: GPU lockup (current fence id 0x0000000000000001 last fence id 0x0000000000000002 on ring 0) Aug 17 15:20:44 linux kernel: [ 7403.541687] radeon 0000:06:00.0: ring 0 stalled for more than 11304msec The last two lines "GPU lockup" and "ring 0 stalled" repeat over and over. The keyboard and the X11 display won't respond. I can ssh into the machine, and I can type "reboot", but it hangs somewhere in the shutdown (or else it is waiting for something longer than I'm willing to wait). The system reboots when I type ALT-SYSRQ-B on the keyboard, and I select the 5.8.0-63 kernel and everything is fine. ** Attachment added: "Selected drm and radeon lines from syslog" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1863390/+attachment/5518846/+files/radeon.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1863390 Title: GPU lockup ring 0 stalled for more than X msec To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1863390/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
