[Bug 56139] [bisected] kernel 3.7.0-rc1 breaks 6950 (boot/grub2 and suspend/resume) (CAYMAN)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56139

John Lenz <lenz at math.uic.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |lenz at math.uic.edu

--- Comment #46 from John Lenz <lenz at math.uic.edu> ---
Hi, I recently started having the same problem. I am running Arch Linux x86_64
with the 3.7.5 kernel.

After bisecting to 7c6b6eb9c4dbf21b3358bd1e68b9f1880e364a4b a google search
found me this bug.  Should maybe have searched for the bug ahead of time to
save me some work :)

I can confirm that changing grub.cfg to use "set gfxpayload=text" fixes the
problem, I haven't tested any of the proposed patches yet, although would be
available to test some.  Just a little about my setup.

lspci

00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge
(int gfx)
00:02.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (ext
gfx port 0)
00:0a.0 PCI bridge: Advanced Micro Devices [AMD] RS780/RS880 PCI to PCI bridge
(PCIE port 5)
00:11.0 SATA controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
SATA Controller [IDE mode]
00:12.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
USB OHCI0 Controller
00:12.1 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0 USB OHCI1
Controller
00:12.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
USB EHCI Controller
00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
USB OHCI0 Controller
00:13.1 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0 USB OHCI1
Controller
00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
USB EHCI Controller
00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev
3a)
00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
IDE Controller
00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel
HDA)
00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC
host controller
00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI
Bridge
00:14.5 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0
USB OHCI2 Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor
HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address
Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor
Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link
Control
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS780D
[Radeon HD 3300]
01:05.1 Audio device: Advanced Micro Devices [AMD] nee ATI RS780 HDMI Audio
[Radeon HD 3000-3300 Series]
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Turks
[Radeon HD 6670]
02:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Turks/Whistler HDMI
Audio [Radeon HD 6000 Series]
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI
Express Gigabit Ethernet controller (rev 02)
04:0e.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000
Controller (PHY/Link)


I have three monitors connected: two monitors connected to the onboard HD 3300
and one monitor connected to the pci card HD 6670.  During the bios and grub,
the two monitors connected to the onboard card are blank (ctrc off) while the
monitor for the 6670 is showing the bios and grub.  Then I see the boot
messages for the kernel and then systemd scroll by for about one second before
the monitor connected to the 6670 goes black and starts kind of flashing. 
Strangely enough, even though I can't see anything, I can log in on the console
and run startx.  This starts X and X appears normally on the two monitors
connected to the onboard card, just the monitor connected to the 6670 is still
flashing and not displaying X.

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