https://bugs.freedesktop.org/show_bug.cgi?id=94153
Bug ID: 94153 Summary: Unresponsive system on boot with radeon + HD 3870 Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: blocker Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: g47qk@ukr.net
Created attachment 121755 --> https://bugs.freedesktop.org/attachment.cgi?id=121755&action=edit dmesg.log saved via the serial port
I'm using a HD 3870 with Debian 9 Stretch x64 (Testing). When booting to a command line, when drivers are loaded, the screen goes into power saving mode, and the system becomes unresponsive.
Booting with `nomodeset' works OK. If I run "#modprobe radeon modeset=1", the screen goes power saving mode, the system stops responding and the caps lock key no longer works (kernel panic?).
I've also tested with a Fedora 23 Workstation Live-CD (64-bit), Ubuntu 15.10 Desktop (64-bit) Live-CD, SystemRescueCd-x86-4.7.0 with the same results (unresponsive on driver load).
I've tested a ATI X1600 Pro in the same system, and everything works fine.
#lspci -nnn | grep VGA 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV670 [Radeon HD 3870] [1002:9501]