So I've tried the mainline kernel kat@korat:~$ uname -a Linux korat 3.19.0-031900rc4-generic #201501112135 SMP Sun Jan 11 21:36:48 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
On my laptop and tried all the steps before to try and reproduce the lockup. MySQL workbench Google Chrome Fast switching between desktops Making lots of screenshots Running Spotify and I even tried the same Steam Game that I had a lockup with on my development machine. So my observations from this experiment are: * Mainline kernel (3.19-031900rc4) with opensource driver and AMD Radeon works ok Mobility Radeon HD 3650 (gaming framerate is still extremely low <10fps) * Mainline kernel (3.19-031900rc4) with fglrx driver and AMD Radeon HD7870 fails to build in DKMS see .txt attachment. Looks like a simple programming error. * Mainline and Signed Kernels (3.19-031900rc4, 3.13-044) Opensource driver with AMD Radeon HD7870 is broken black screen with the only way out ALT+SysReq+REISUB * Signed Kernel (3.13-044) with Opensource radeon driver with Mobility Radeon HD 3650 causes GPU lockups. * Signed Kernel (3.13-044) with AMD fglrx driver and AMD Radeon HD7870 causes lockups when running games with Steam * Signed Kernel (3.13-043) with AMD fglrx driver and AMD Radeon HD7870 works normally. ++ There are no Proprietary driver to test with for the Mobility Radeon HD 3650 so fgrlx was not tested with this videocard. hope this helps. ** Attachment added: "dkms rebuild log of fglrx" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1409393/+attachment/4297943/+files/fglrx_dkms.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1409393 Title: radeon GPU lockup CP stall To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1409393/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
