Garbage on screen with F20 & F21 - ATI free drivers

[Frederic Muller]

Hi!

I got a garbaged screen since a big xorg update about 3 weeks agoon F20.
I usually don't complain as problems tend to get fixed very fast. Though
this one didn't and I decided to upgrade to F21...to notice the problem
is there too. I haven't found any recent bug describing the issue and
was therefore posting here wondering if it was me or not.

A bit more information about this issue:
- "effect" visible at http://snag.gy/AGPaq.jpg
- lpci -v
bash-4.3$  lspci -v
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] RS780 Host Bridge
	Subsystem: Advanced Micro Devices, Inc. [AMD] RS780 Host Bridge
	Flags: bus master, 66MHz, medium devsel, latency 0
	Capabilities: <access denied>

00:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780 PCI to PCI
bridge (ext gfx port 0) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 24
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: feb00000-febfffff
	Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:09.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI
to PCI bridge (PCIE port 4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0, IRQ 25
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000e000-0000efff
	Prefetchable memory behind bridge: 00000000fdf00000-00000000fdffffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 SATA Controller [IDE mode] (prog-if 01 [AHCI 1.0])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 22
	I/O ports at c000 [size=8]
	I/O ports at b000 [size=4]
	I/O ports at a000 [size=8]
	I/O ports at 9000 [size=4]
	I/O ports at 8000 [size=16]
	Memory at feaffc00 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
	Memory at feafe000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB
OHCI1 Controller (prog-if 10 [OHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
	Memory at feafd000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17
	Memory at feaff800 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
	Memory at feafc000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB
OHCI1 Controller (prog-if 10 [OHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
	Memory at feafb000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB
EHCI Controller
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 19
	Memory at feaff400 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci

00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus
Controller (rev 3c)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: 66MHz, medium devsel
	Capabilities: <access denied>
	Kernel modules: i2c_piix4, sp5100_tco

00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 IDE Controller (prog-if 8a [Master SecP PriP])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
	I/O ports at 01f0 [size=8]
	I/O ports at 03f4
	I/O ports at 0170 [size=8]
	I/O ports at 0374
	I/O ports at ff00 [size=16]
	Capabilities: <access denied>
	Kernel driver in use: pata_atiixp
	Kernel modules: pata_atiixp, pata_acpi, ata_generic

00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00
Azalia (Intel HDA)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, slow devsel, latency 64, IRQ 16
	Memory at feaf4000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 LPC host controller
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, 66MHz, medium devsel, latency 0

00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to
PCI Bridge (prog-if 01 [Subtractive decode])
	Flags: bus master, 66MHz, medium devsel, latency 64
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=64

00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI]
SB7x0/SB8x0/SB9x0 USB OHCI2 Controller (prog-if 10 [OHCI])
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 4396
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
	Memory at feafa000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor HyperTransport Configuration
	Flags: fast devsel
	Capabilities: <access denied>

00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor Address Map
	Flags: fast devsel

00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor DRAM Controller
	Flags: fast devsel

00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor Miscellaneous Control
	Flags: fast devsel
	Capabilities: <access denied>
	Kernel driver in use: k10temp
	Kernel modules: k10temp

00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h
Processor Link Control
	Flags: fast devsel

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Juniper XT [Radeon HD 6770] (prog-if 00 [VGA controller])
	Subsystem: PC Partner Limited / Sapphire Technology Device 1484
	Flags: bus master, fast devsel, latency 0, IRQ 27
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Memory at febc0000 (64-bit, non-prefetchable) [size=128K]
	I/O ports at d000 [size=256]
	Expansion ROM at feba0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: radeon
	Kernel modules: radeon

01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Juniper
HDMI Audio [Radeon HD 5700 Series]
	Subsystem: PC Partner Limited / Sapphire Technology Device aa58
	Flags: bus master, fast devsel, latency 0, IRQ 28
	Memory at febf8000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
	Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7715
	Flags: bus master, fast devsel, latency 0, IRQ 26
	I/O ports at e800 [size=256]
	Memory at fdfff000 (64-bit, prefetchable) [size=4K]
	Memory at fdff8000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169
- dmesg.log unfound... but I think it has disappeared.

Let me know if you need anything else.

Thank you.

Fred