起動後に画面が断続的に破損する

Arch Linuxを実行してください。時々起動すると（Grubで行を選択した後）、通常は起動メッセージが表示されますが、次の内容が表示されます。

ディスプレイドライバの問題のようですが、奇妙なことには時々発生し、残りの時間には正しく起動して正常に表示されます。

ノートパソコンのラベルによると、「グラフィックスバイATI Mobility Radeon X700」となっています。

出力lspci -k：

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD/ATI] RX480/RX482 Host Bridge (rev 01)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
00:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RS4xx PCI Express Port [ext gfx]
        Kernel driver in use: pcieport
        Kernel modules: shpchp
00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC4xx/RS4xx PCI Express Port 1
        Kernel driver in use: pcieport
        Kernel modules: shpchp
00:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] RC4xx/RS4xx PCI Express Port 2
        Kernel driver in use: pcieport
        Kernel modules: shpchp
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller (rev 80)
        Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller
        Kernel driver in use: ohci-pci
        Kernel modules: ohci_pci
00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller (rev 80)
        Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB Host Controller
        Kernel driver in use: ohci-pci
        Kernel modules: ohci_pci
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB2 Host Controller (rev 80)
        Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 USB2 Host Controller
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 SMBus Controller (rev 81)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        Kernel driver in use: piix4_smbus
        Kernel modules: i2c_piix4
00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 IDE Controller (rev 80)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        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] IXP SB4x0 High Definition Audio Controller (rev 01)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 PCI-ISA Bridge (rev 80)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] IXP SB4x0 PCI-PCI Bridge (rev 80)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
        Kernel modules: amd64_edac_mod
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
        Kernel driver in use: k8temp
        Kernel modules: k8temp
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV410/M26 [Mobility Radeon X700]
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        Kernel driver in use: radeon
        Kernel modules: radeon
04:00.0 Ethernet controller: LSI Corporation ET-131x PCI-E Ethernet Controller (rev 01)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        Kernel driver in use: et131x
        Kernel modules: et131x
05:04.0 CardBus bridge: O2 Micro, Inc. OZ711MP1/MS1 MemoryCardBus Controller (rev 21)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        Kernel driver in use: yenta_cardbus
        Kernel modules: yenta_socket
05:04.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 01)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
        Kernel driver in use: sdhci-pci
        Kernel modules: sdhci_pci
05:04.3 Bridge: O2 Micro, Inc. Integrated MS/xD Controller (rev 01)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Device 0361
05:04.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
        Subsystem: O2 Micro, Inc. Firewire (IEEE 1394)
        Kernel driver in use: firewire_ohci
        Kernel modules: firewire_ohci
05:09.0 Network controller: Ralink corp. RT2500 Wireless 802.11bg (rev 01)
        Subsystem: Micro-Star International Co., Ltd. [MSI] Unknown 802.11g mini-PCI Adapter
        Kernel driver in use: rt2500pci
        Kernel modules: rt2500pci

別のドライバを使用する必要がありますか？