Created attachment 100614 [details] Relevant dmesg Kernel: 3.15.0-rc7-00118-ga4bf79e As soon as the radeon module gets loaded with dpm=1 (the default) and Xorg is started the system crashes.
Created attachment 100615 [details] Videobios via od -x /sys/class/drm/card0/device/rom
looks like the vbios didn't get dumped properly. Try this: (as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom
Created attachment 100616 [details] Next try. This time without od.
(In reply to comment #3) > Created attachment 100616 [details] > Next try. This time without od. That worked. thanks!
Looking at strings from vbios: >113-MSITV303MS.1D0 C63101 CURACAO XT GDDR5 64MX32 2GB 150E/150M This is the 4G variant: http://www.msi.com/product/vga/R9_270X_GAMING_4G.html
I also tried with Kernel 3.15.0-rc8-00105-gc593e89 Same effect
Probably this is the same problem I reported here (exact same model): https://bugs.freedesktop.org/show_bug.cgi?id=76490
*** This bug has been marked as a duplicate of bug 76490 ***
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