Thanks, fixed video playing/youtube problems on my Toshiba Tecra A8 (i945 GM).
Seems this problem affects many Intel GPU...
Detailed:
#lspci -vvnn
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS,
943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)
Subsystem: Toshiba America Info Systems Device [1179:0005]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at ffd80000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at cff8 [size=8]
Region 2: Memory at e0000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at ffd40000 (32-bit, non-prefetchable) [size=256K]
Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0
Enable-
Address: 00000000 Data: 0000
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: intelfb
r...@drag0njoe-laptop:~# cat /proc/mtrr
reg00: base=0x0feda0000 ( 4077MB), size= 128KB, count=1: write-back
reg01: base=0x07f800000 ( 2040MB), size= 8MB, count=1: uncachable
reg02: base=0x0fff00000 ( 4095MB), size= 1MB, count=1: write-protect
reg03: base=0x000000000 ( 0MB), size= 2048MB, count=1: write-back
r...@drag0njoe-laptop:~# echo "base=0xe0000000 size=0x10000000
type=write-combining" > /proc/mtrr
r...@drag0njoe-laptop:~# cat /proc/mtrr
reg00: base=0x0feda0000 ( 4077MB), size= 128KB, count=1: write-back
reg01: base=0x07f800000 ( 2040MB), size= 8MB, count=1: uncachable
reg02: base=0x0fff00000 ( 4095MB), size= 1MB, count=1: write-protect
reg03: base=0x000000000 ( 0MB), size= 2048MB, count=1: write-back
reg04: base=0x0e0000000 ( 3584MB), size= 256MB, count=1: write-combining
--
[i915GM] MTRR entry missing since jaunty - is this intentional?
https://bugs.launchpad.net/bugs/314928
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