[Bug 34822] New: Blank display on Toshiba laptop C670D-10C using AMD E-240 Palm chip

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=34822

           Summary: Blank display on Toshiba laptop C670D-10C using AMD
                    E-240 Palm chip
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.39-rc7
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: anisse at astier.eu
        Regression: No


Created an attachment (id=57132)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=57132)
dmesg using Linus' HEAD of May 10th 2011

On a Toshiba laptop using an AMD Fusion GPU (SoC: E-240), I am unable to have
screen turn on with KMS. It stays blank, even when starting the X server.

I tried with 2.6.38.5, Today's Linus tree, Yesterday's drm-2.6/drm-next, all to
the same result.

Here is the lspci:

00:00.0 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1510]
00:01.0 VGA compatible controller [0300]: ATI Technologies Inc Device
[1002:9803]
00:11.0 SATA controller [0106]: ATI Technologies Inc SB700/SB800 SATA
Controller [AHCI mode] [1002:4391] (rev 40)
00:12.0 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB OHCI0
Controller [1002:4397]
00:12.2 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB EHCI
Controller [1002:4396]
00:13.0 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB OHCI0
Controller [1002:4397]
00:13.2 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB EHCI
Controller [1002:4396]
00:14.0 SMBus [0c05]: ATI Technologies Inc SBx00 SMBus Controller [1002:4385]
(rev 42)
00:14.1 IDE interface [0101]: ATI Technologies Inc SB700/SB800 IDE Controller
[1002:439c] (rev 40)
00:14.2 Audio device [0403]: ATI Technologies Inc SBx00 Azalia (Intel HDA)
[1002:4383] (rev 40)
00:14.3 ISA bridge [0601]: ATI Technologies Inc SB700/SB800 LPC host controller
[1002:439d] (rev 40)
00:14.4 PCI bridge [0604]: ATI Technologies Inc SBx00 PCI to PCI Bridge
[1002:4384] (rev 40)
00:15.0 PCI bridge [0604]: ATI Technologies Inc Device [1002:43a0]
00:15.1 PCI bridge [0604]: ATI Technologies Inc Device [1002:43a1]
00:15.2 PCI bridge [0604]: ATI Technologies Inc Device [1002:43a2]
00:16.0 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB OHCI0
Controller [1002:4397]
00:16.2 USB Controller [0c03]: ATI Technologies Inc SB700/SB800 USB EHCI
Controller [1002:4396]
00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1700]
(rev 43)
00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1701]
00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1702]
00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1703]
00:18.4 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1704]
00:18.5 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1718]
00:18.6 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1716]
00:18.7 Host bridge [0600]: Advanced Micro Devices [AMD] Device [1022:1719]
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device
[10ec:8176] (rev 01)
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)

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