Created attachment 115031 [details] dmesg output with drm.debug=0x0e Reported at openSUSE bugzilla https://bugzilla.novell.com/show_bug.cgi?id=841822 The original bug report: Toshiba P775D-S7230 AMD APU A4, resume from suspend leaves screen "black". WHen I compiled and installed the proprietary AMD driver (13.8B2), it works fine. Same behavior on 12.3 as well. Reproducible: Always Steps to Reproduce: 1. Make sure AMD FOSS driver is loaded 2. Suspend (to ram or disk) 3. Resume 4. Screen is blank, machine is "resumed" Actual Results: The machine appears to be in a working state, but the screen is black Expected Results: Full function resume from suspend with video Compiling and installing the AMD proprietary driver (13.8B2) works. === The problem is seen without X, too. Reproduced on (openSUSE) 12.3 means that kernel 3.7 had already the problem. openSUSE 13.1 uses 3.11.x kernel, and the reporter tested 3.12 kernel, too. The full dmesg with drm.debug=0x0e after S4 resume is attached.
Try the kernel parameters: nomodeset vga=0 (for X, load radeon with modeset=1, e.g. via modprobe.d options) With my system, at least resume from hibernation then works with an active display. Did not find a fix to suspend to ram, though. (Also running AMD A4 here)
May be related to: https://bugzilla.kernel.org/show_bug.cgi?id=61691
Hi, I am experiencing the same issue with an AMD A6 CPU. I tried with 3.13 and now 3.14 kernel but the problem persists. I am also running opensuse 13.1. I attached my dmesg before and after with drm.debug=0x0e. Please let me know if I can help with additional information.
Created attachment 131711 [details] dmesg befor suspend
Created attachment 131721 [details] dmesg after suspend
This is a duplicate of: https://bugs.freedesktop.org/show_bug.cgi?id=42960