Praskání zvuku a celková nízká odezva systému

Zdravím lidi,

kdysi dávno za velký peníz jsem si pořídil notebook od firmy ACER TravelMate240. Dnes tam mám nainstalovanou distribuci FC6, grafické prostředí gnome. Při přehrávání zvuku slyším praskání a u přehrávání videa z WOW v rozlišení 1024x768 se zpožďuje zvuk. . Přehrávač MPlayer


Ovladače ALSA: 1.0.14rc2
Lib ALSA: 1.0.13-1.fc6
Utils ALSA: 1.0.13.1.fc6

Výstup z 'lspci -vvv' zvuk


00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
        Subsystem: Acer Incorporated [ALI] Unknown device 0039
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 10
        Region 0: I/O ports at 1c00 [size=256]
        Region 1: I/O ports at 18c0 [size=64]
        Region 2: Memory at e0100c00 (32-bit, non-prefetchable) [size=512]
        Region 3: Memory at e0100800 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

Výstup z 'lspci'


00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:00.1 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:00.3 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
02:04.0 CardBus bridge: Texas Instruments PCI1520 PC card Cardbus Controller (rev 01)
02:04.1 CardBus bridge: Texas Instruments PCI1520 PC card Cardbus Controller (rev 01)
02:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

Výstup z 'mplayer -v'


MPlayer dev-SVN-rUNKNOWN-4.1.1 (C) 2000-2006 MPlayer Team
CPU: Intel(R) Celeron(R) CPU 2.40GHz (Family: 15, Model: 2, Stepping: 9)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Výstup z '/proc/interrupts'

           CPU0       
  0:    8993414    XT-PIC-XT        timer
  1:         12    XT-PIC-XT        i8042
  2:          0    XT-PIC-XT        cascade
  7:          3    XT-PIC-XT        parport0
  8:          1    XT-PIC-XT        rtc
  9:      10608    XT-PIC-XT        acpi
 10:   11569818    XT-PIC-XT        yenta, yenta, uhci_hcd:usb3, Intel 82801DB-ICH4
 11:     966053    XT-PIC-XT        uhci_hcd:usb1, uhci_hcd:usb2, ehci_hcd:usb4, eth0, i915@pci:0000:00:02.0
 12:        133    XT-PIC-XT        i8042
 14:     118755    XT-PIC-XT        ide0
 15:      81247    XT-PIC-XT        ide1
NMI:          0 
LOC:          0 
ERR:          0
MIS:          0

Výstup z programu 'glxgears'

libGL warning: 3D driver claims to not support visual 0x4b
1179 frames in 5.0 seconds = 235.698 FPS
1723 frames in 5.0 seconds = 344.501 FPS
1675 frames in 5.0 seconds = 334.855 FPS
1735 frames in 5.0 seconds = 346.925 FPS
1726 frames in 5.0 seconds = 345.034 FPS
1592 frames in 5.0 seconds = 318.308 FPS
1608 frames in 5.0 seconds = 321.516 FPS
1665 frames in 5.0 seconds = 332.967 FPS
1638 frames in 5.0 seconds = 327.515 FPS
1611 frames in 5.0 seconds = 322.171 FPS

Celý systém se mi zdá být latentně zbrzděný co se týče grafického prostředí.
Druhá otázka by byla na testy benchmarků. Jaký doporučujete co se týče výkonnosti systému a zvlášť grafiky.

Díky za názory a postřehy.

Dotaz: Praskání zvuku a celková nízká odezva systému