[Bug 76490] New: No output after radeon module is loaded (R9 270X)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

          Priority: medium
            Bug ID: 76490
          Assignee: dri-devel at lists.freedesktop.org
           Summary: No output after radeon module is loaded (R9 270X)
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: mail at geleia.net
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Radeon
           Product: DRI

Created attachment 96217
  --> https://bugs.freedesktop.org/attachment.cgi?id=96217&action=edit
kernel log

The screen goes black after the radeon module is loaded. The only way I can get
any output is to blacklist the radeon module, load it via modprobe and then
change the resolution with xrandr from another computer via ssh.

I seem to get some sort of lockup if I don't blacklist the module, because then
I get a black screen at startup and I cannot even ssh into the machine. I tried
to enable netconsole from the kernel command line but I can't get it to work
(do I have to compile it statically?).

I tried this with 3.14-rc6. For reference, I'm including the log output I get
after I load the radeon module.

This card is an MSI R9 270X Gaming 4G.

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