[Bug 45503] New: [drm:radeon_get_bios] *ERROR* Unable to locate a BIOS ROM

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=45503

             Bug #: 45503
           Summary: [drm:radeon_get_bios] *ERROR* Unable to locate a BIOS
                    ROM
    Classification: Unclassified
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: mlambda@gmail.com


Created attachment 56455
  --> https://bugs.freedesktop.org/attachment.cgi?id=56455
dmesg with kernel 3.2.2

On my HP Pavilion dv7 6104eg notebook with kernel 3.3-rc2 I get the following
error:
----------------------------------------
[   10.341795] [drm] radeon defaulting to kernel modesetting.
[   10.341797] [drm] radeon kernel modesetting enabled.
[   10.341809] VGA switcheroo: detected switching method \_SB_.PCI0.GFX0.ATPX
handle
[   10.341851] radeon 0000:01:00.0: enabling device (0000 -> 0003)
[   10.342036] [drm] initializing kernel modesetting (TURKS 0x1002:0x6740
0x103C:0x3389).
[   10.342074] [drm] register mmio base: 0xC6500000
[   10.342075] [drm] register mmio size: 131072
[   10.342077] vga_switcheroo: enabled
[   10.342166] radeon atpx: version is 1
[   10.365217] radeon 0000:01:00.0: Invalid ROM contents
[   10.365319] radeon 0000:01:00.0: Invalid ROM contents
[   10.365368] [drm:radeon_get_bios] *ERROR* Unable to locate a BIOS ROM
[   10.365408] radeon 0000:01:00.0: Fatal error during GPU init
[   10.365444] [drm] radeon: finishing device.
[   10.365447] [TTM] Memory type 2 has not been initialized.
[   10.366516] radeon 0000:01:00.0: no bo for sa manager
[   10.366540] vga_switcheroo: disabled
[   10.366663] radeon: probe of 0000:01:00.0 failed with error -22
----------------------------------------

I want to switch off the discrete Radeon GPU with vga_switcheroo when using
Linux as it gets quite hot and causes the fan to run permanently. This used to
work with kernel 3.2.2 without any problems.

Please tell me which additional information you need to resolve the issue!

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