Estou usando ele há mais de seis meses, e não encontrei bug nenhum, ele usa o Composite e o Gala, se não me engano, para os efeitos da Área de Trabalho, as atualizações são diárias, mas não estão comprometendo o sistema, na minha opinião é o OS baseado no Ubuntu mais leve e prático que existe, baixo consumo, alto desempenho, eu particularmente estou gostando muito, ele é baseado no Precise Pangolin.

Para adicionar á informação do colega Renan, eu também uso as seguintes ferramentas  Htop  Sysinfo  Psensor  Gkrellm  GsmartControl

JFMMF

Se você desinstalar o abiword automaticamente o libreoffice assume a função de abrir os arquivos. Mesmo vale para gnumeric.

Olá a todos, gostaria de mudar a resolução de tela de meu monitor, no caso gostaria de deixar 1152x864 60hz porém só consigo deixar essa resolução se ficar em 75 hz.  Como faço para adicionar um novo tipo de resolução pois de acordo o xrandr...

Screen 0: minimum 8 x 8, current 1152 x 864, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
DVI-I-0 connected 1152x864+0+0 (normal left inverted right x axis y axis) 310mm x 230mm
   1024x768       85.0 +   75.0     70.1     60.0 
   1280x1024      60.0 
   1152x864       75.0*
   800x600        85.1     75.0     72.2     60.3     56.2 
   640x480        85.0     75.0     72.8     59.9 
TV-0 disconnected (normal left inverted right x axis y axis)
VGA-1 disconnected (normal left inverted right x axis y axis)

ele não permite deixar 60 hz na resolução que quero (sim meu monitor suporta, uso essa resolução no Windows, minha placa de vídeo é Nvidia 8600 GT e o monitor é Samsung syncmaster 793 df).

Já editei várias vezes o arquivo /etc/X11/xorg.conf com algumas dicas que achei nas pesquisas do Google e nada, por favor, me ajudem, pois minha mãe tbm usa o pc ^^

Seu monitor funciona normalmente em outro sistema operacional?

Instalei o ubuntu 13.04 no meu Notbook, mas quando eu ligo,  depois do sistema iniciar a tela fica preta! Se eu ligo com o cabo HDMI na tv ele funciona normal (mas só na TV)


ubuntu                   
    description: Notebook
    product: HP Pavilion dm4 Notebook PC (A0Y14LA#AC4)
    vendor: Hewlett-Packard
    version: 067F210000242F10000620100
    serial: BRG234F7N9
    width: 64 bits
    capabilities: smbios-2.7 dmi-2.7 vsyscall32
    configuration: boot=normal chassis=notebook family=103C_5335KV G=N L=CON B=HP S=PAV X=MIN sku=A0Y14LA#AC4 uuid=F7243A99-7722-DF71-4477-2B2012CD76D0
  *-core
       description: Motherboard
       product: 1651
       vendor: Hewlett-Packard
       physical id: 0
       version: KBC Version 07.26
       serial: vide_mainboard
       slot: Base Board Chassis Location
     *-firmware
          description: BIOS
          vendor: Hewlett-Packard
          physical id: 0
          version: F.15
          date: 03/21/2012
          size: 1MiB
          capacity: 2496KiB
          capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification
     *-memory
          description: System Memory
          physical id: 1a
          slot: System board or motherboard
          size: 6GiB
        *-bank:0
             description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)
             product: SH564568FH8NZPHSCG
             physical id: 0
             serial: 04D0FF51
             slot: Bottom-Slot 1(top)
             size: 2GiB
             width: 64 bits
             clock: 1333MHz (0.8ns)
        *-bank:1
             description: SODIMM DDR3 Synchronous 1333 MHz (0,8 ns)
             product: SH564128FH8NZPHSCG
             physical id: 1
             serial: 04543692
             slot: Bottom-Slot 2(under)
             size: 4GiB
             width: 64 bits
             clock: 1333MHz (0.8ns)
     *-cpu
          description: CPU
          product: Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz
          vendor: Intel Corp.
          physical id: 25
          bus info: cpu@0
          version: Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz
          slot: CPU1
          size: 800MHz
          capacity: 800MHz
          width: 64 bits
          clock: 1333MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq
          configuration: cores=2 enabledcores=2 threads=4
        *-cache:0
             description: L1 cache
             physical id: 27
             slot: L1 Cache
             size: 32KiB
             capacity: 32KiB
             capabilities: synchronous internal write-through instruction
        *-cache:1
             description: L2 cache
             physical id: 28
             slot: L2 Cache
             size: 256KiB
             capacity: 256KiB
             capabilities: synchronous internal write-through unified
        *-cache:2
             description: L3 cache
             physical id: 29
             slot: L3 Cache
             size: 3MiB
             capacity: 3MiB
             capabilities: synchronous internal write-through unified
     *-cache
          description: L1 cache
          physical id: 26
          slot: L1 Cache
          size: 32KiB
          capacity: 32KiB
          capabilities: synchronous internal write-through data
     *-pci
          description: Host bridge
          product: 2nd Generation Core Processor Family DRAM Controller
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 09
          width: 32 bits
          clock: 33MHz
        *-pci:0
             description: PCI bridge
             product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
             vendor: Intel Corporation
             physical id: 1
             bus info: pci@0000:00:01.0
             version: 09
             width: 32 bits
             clock: 33MHz
             capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:40 ioport:4000(size=4096) memory:c2600000-c35fffff ioport:a0000000(size=268435456)
           *-display
                description: VGA compatible controller
                product: Seymour [Radeon HD 6400M Series]
                vendor: Hynix Semiconductor (Hyundai Electronics)
                physical id: 0
                bus info: pci@0000:01:00.0
                version: 00
                width: 64 bits
                clock: 33MHz
                capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
                configuration: driver=radeon latency=0
                resources: irq:44 memory:a0000000-afffffff memory:c2600000-c261ffff ioport:4000(size=256) memory:c2620000-c263ffff
        *-pci:1
             description: PCI bridge
             product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
             vendor: Intel Corporation
             physical id: 1.1
             bus info: pci@0000:00:01.1
             version: 09
             width: 32 bits
             clock: 33MHz
             capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:41
        *-pci:2
             description: PCI bridge
             product: Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
             vendor: Intel Corporation
             physical id: 1.2
             bus info: pci@0000:00:01.2
             version: 09
             width: 32 bits
             clock: 33MHz
             capabilities: pci pm msi pciexpress normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:42
        *-display
             description: VGA compatible controller
             product: 2nd Generation Core Processor Family Integrated Graphics Controller
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 09
             width: 64 bits
             clock: 33MHz
             capabilities: msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:45 memory:c0000000-c03fffff memory:b0000000-bfffffff ioport:5000(size=64)
        *-communication
             description: Communication controller
             product: 6 Series/C200 Series Chipset Family MEI Controller #1
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 04
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=mei latency=0
             resources: irq:46 memory:c3604000-c360400f
        *-usb:0
             description: USB controller
             product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
             vendor: Intel Corporation
             physical id: 1a
             bus info: pci@0000:00:1a.0
             version: 05
             width: 32 bits
             clock: 33MHz
             capabilities: pm debug ehci bus_master cap_list
             configuration: driver=ehci_hcd latency=0
             resources: irq:16 memory:c3609000-c36093ff
        *-multimedia
             description: Audio device
             product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
             vendor: Intel Corporation
             physical id: 1b
             bus info: pci@0000:00:1b.0
             version: 05
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi pciexpress bus_master cap_list
             configuration: driver=snd_hda_intel latency=0
             resources: irq:48 memory:c3600000-c3603fff
        *-pci:3
             description: PCI bridge
             product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci@0000:00:1c.0
             version: b5
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:17 memory:c2500000-c25fffff
           *-network
                description: Wireless interface
                product: Centrino Wireless-N 1030
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:09:00.0
                logical name: wlan0
                version: 34
                serial: 4c:eb:42:9b:5f:cd
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=3.5.0-23-generic firmware=18.168.6.1 ip=192.168.0.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
                resources: irq:47 memory:c2500000-c2501fff
        *-pci:4
             description: PCI bridge
             product: 6 Series/C200 Series Chipset Family PCI Express Root Port 3
             vendor: Intel Corporation
             physical id: 1c.2
             bus info: pci@0000:00:1c.2
             version: b5
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:18 ioport:3000(size=4096) memory:c1500000-c24fffff ioport:c0400000(size=16777216)
           *-generic
                description: Unassigned class
                product: RTS5116 PCI Express Card Reader
                vendor: Realtek Semiconductor Co., Ltd.
                physical id: 0
                bus info: pci@0000:0a:00.0
                logical name: scsi6
                version: 01
                width: 32 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list emulated scsi-host
                configuration: driver=rts_pstor latency=0
                resources: irq:18 memory:c1500000-c1500fff
              *-disk
                   description: SCSI Disk
                   product: xD/SD/M.S.
                   vendor: Generic-
                   physical id: 0.0.0
                   bus info: scsi@6:0.0.0
                   logical name: /dev/sdb
                   version: 1.00
                   serial: 3
                   capabilities: removable
                 *-medium
                      physical id: 0
                      logical name: /dev/sdb
        *-pci:5
             description: PCI bridge
             product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5
             vendor: Intel Corporation
             physical id: 1c.4
             bus info: pci@0000:00:1c.4
             version: b5
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:17 ioport:2000(size=4096) memory:c1400000-c14fffff
           *-network
                description: Ethernet interface
                product: AR8151 v2.0 Gigabit Ethernet
                vendor: Atheros Communications Inc.
                physical id: 0
                bus info: pci@0000:10:00.0
                logical name: eth0
                version: c0
                serial: b4:b5:2f:fa:81:fe
                capacity: 1Gbit/s
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI latency=0 link=no multicast=yes port=twisted pair
                resources: irq:49 memory:c1400000-c143ffff ioport:2000(size=128)
        *-usb:1
             description: USB controller
             product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: 05
             width: 32 bits
             clock: 33MHz
             capabilities: pm debug ehci bus_master cap_list
             configuration: driver=ehci_hcd latency=0
             resources: irq:20 memory:c3608000-c36083ff
        *-isa
             description: ISA bridge
             product: HM65 Express Chipset Family LPC Controller
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 05
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master cap_list
             configuration: latency=0
        *-storage
             description: SATA controller
             product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 05
             width: 32 bits
             clock: 66MHz
             capabilities: storage msi pm ahci_1.0 bus_master cap_list
             configuration: driver=ahci latency=0
             resources: irq:43 ioport:5088(size=8) ioport:5094(size=4) ioport:5080(size=8) ioport:5090(size=4) ioport:5060(size=32) memory:c3607000-c36077ff
        *-serial UNCLAIMED
             description: SMBus
             product: 6 Series/C200 Series Chipset Family SMBus Controller
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 05
             width: 64 bits
             clock: 33MHz
             configuration: latency=0
             resources: memory:c3605000-c36050ff ioport:5040(size=32)
     *-scsi:0
          physical id: 1
          logical name: scsi0
          capabilities: emulated
        *-disk
             description: ATA Disk
             product: ST750LM022 HN-M7
             vendor: Seagate
             physical id: 0.0.0
             bus info: scsi@0:0.0.0
             logical name: /dev/sda
             version: 2AR1
             serial: S2W4J5BC800680
             size: 698GiB (750GB)
             capabilities: partitioned partitioned:dos
             configuration: ansiversion=5 signature=000606ef
           *-volume:0
                description: Windows NTFS volume
                physical id: 1
                bus info: scsi@0:0.0.0,1
                logical name: /dev/sda1
                version: 3.1
                serial: fe0f-b731
                size: 98MiB
                capacity: 100MiB
                capabilities: primary bootable ntfs initialized
                configuration: clustersize=4096 created=2013-03-18 21:02:35 filesystem=ntfs label=Reservado pelo Sistema state=clean
           *-volume:1
                description: Windows NTFS volume
                physical id: 2
                bus info: scsi@0:0.0.0,2
                logical name: /dev/sda2
                logical name: /host
                version: 3.1
                serial: e8533efe-3fbe-ae41-9315-196dec67e077
                size: 698GiB
                capacity: 698GiB
                capabilities: primary ntfs initialized
                configuration: clustersize=4096 created=2013-03-18 21:02:37 filesystem=ntfs modified_by_chkdsk=true mount.fstype=fuseblk mount.options=rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096 mounted_on_nt4=true resize_log_file=true state=mounted upgrade_on_mount=true
     *-scsi:1
          physical id: 2
          logical name: scsi2
          capabilities: emulated
        *-cdrom
             description: DVD-RAM writer
             product: CDDVDW TS-U633J
             vendor: hp
             physical id: 0.0.0
             bus info: scsi@2:0.0.0
             logical name: /dev/cdrom
             logical name: /dev/cdrw
             logical name: /dev/dvd
             logical name: /dev/dvdrw
             logical name: /dev/sr0
             version: HH01
             capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
             configuration: ansiversion=5 status=nodisc
  *-battery
       description: Lithium Ion Battery
       product: MU06062
       vendor: Conexant (Rockwell)
       physical id: 1
       slot: Primary
       capacity: 62160mWh
       configuration: voltage=11,1V
  *-power UNCLAIMED
       description: OEM_Define1
       product: OEM_Define5
       vendor: OEM_Define2
       physical id: 2
       version: OEM_Define6
       serial: OEM_Define3
       capacity: 75mWh

Tenta usar o YouTube HTML5-Video 0.2, aqui funcionou.

No "Gerenciador de atualizações" (o ícone no painel inferior semelhante a um escudo), via Synaptic ou pondo no terminal

sudo software-properties-gtk

Tive o mesmo problema, mas logo desinstalei o Wine e problema resolvido.

Humm, tem uns vídeos que não tem ainda em html5 né. Entra em youtube.com/html5 e vê se os codecs estão todos em ordens (no Firefox sempre falta um, é normal).