Debian 8.3 64位,显卡驱动有问题,图片和文本有锯齿

已经安装了驱动,ati的。
@debian:~$ uname -a
Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u4 (2016-02-29) x86_64 GNU/Linux

root@debian:/home/asm# sudo lspci -knn
00:00.0 Host bridge [0600]: Intel Corporation 4th Gen Core Processor DRAM Controller [8086:0c00] (rev 06)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: hsw_uncore
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller [8086:0c01] (rev 06)
Kernel driver in use: pcieport
00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Generation Core Processor Family Integrated Graphics Controller [8086:041e] (rev 06)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: i915
00:03.0 Audio device [0403]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller [8086:0c0c] (rev 06)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: snd_hda_intel
00:14.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI [8086:8c31] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: xhci_hcd
00:16.0 Communication controller [0780]: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 [8086:8c3a] (rev 04)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: mei_me
00:1a.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 [8086:8c2d] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: ehci-pci
00:1b.0 Audio device [0403]: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller [8086:8c20] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 [8086:8c10] (rev d5)
Kernel driver in use: pcieport
00:1c.2 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 [8086:8c14] (rev d5)
Kernel driver in use: pcieport
00:1c.3 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 [8086:8c16] (rev d5)
Kernel driver in use: pcieport
00:1c.5 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #6 [8086:8c1a] (rev d5)
Kernel driver in use: pcieport
00:1d.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 [8086:8c26] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge [0601]: Intel Corporation C220 Series Chipset Family H81 Express LPC Controller [8086:8c5c] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] [8086:8c02] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller [8086:8c22] (rev 05)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
01:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M] [1002:6660] (rev 83)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: fglrx_pci
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in use: rtsx_pci
04:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:804a]
Kernel driver in use: bcma-pci-bridge
05:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)
Subsystem: Hewlett-Packard Company Device [103c:2b3c]
Kernel driver in u

lshw -numeric -class video
*-display
description: Display controller
product: Sun XT [Radeon HD 8670A/8670M/8690M] [1002:6660]
vendor: Advanced Micro Devices, Inc. [AMD/ATI] [1002]
physical id: 0
bus info: pci@0000:01:00.0
version: 83
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list rom
configuration: driver=fglrx_pci latency=0
resources: irq:53 memory:e0000000-efffffff memory:f7b00000-f7b3ffff ioport:e000(size=256) memory:f7b40000-f7b5ffff
*-display
description: VGA compatible controller
product: 4th Generation Core Processor Family Integrated Graphics Controller [8086:41E]
vendor: Intel Corporation [8086]
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:50 memory:f7400000-f77fffff memory:d0000000-dfffffff ioport:f000(size=64)

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