I have the same problem (kernel 2.6.31-17-generic, xserver-xorg-video-intel
2:2.9.0-1ubuntu):
a...@biblioteket:~$ sudo dmidecode -s system-product-name
Macmini1,1
a...@biblioteket:~$ sudo lspci -vvs 00:2.0
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
943/940GML Express Integrated Graphics Controller (rev 03)
Subsystem: Intel Corporation Device 7270
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 90380000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at 20f0 [size=8]
Region 2: Memory at 80000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at 90400000 (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 driver in use: i915
Kernel modules: i915
a...@biblioteket:~$
a...@biblioteket:~$ sudo get-edid | parse-edid
parse-edid: parse-edid version 2.0.0
get-edid: get-edid version 2.0.0
Performing real mode VBE call
Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
Function supported
Call successful
VBE version 300
VBE string at 0x11100 "Intel(r) 82945GM Chipset Family Graphics Chip
Accelerated VGA BIOS"
VBE/DDC service about to be called
Report DDC capabilities
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
Function supported
Call successful
Monitor and video card combination does not support DDC1 transfers
Monitor and video card combination supports DDC2 transfers
0 seconds per 128 byte EDID block transfer
Screen is not blanked during DDC transfer
Reading next EDID block
VBE/DDC service about to be called
Read EDID
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
Function supported
Call successful
parse-edid: EDID checksum passed.
# EDID version 1 revision 3
Section "Monitor"
# Block type: 2:0 3:ff
# Block type: 2:0 3:fd
# Block type: 2:0 3:fc
Identifier "DELL SP2309W"
VendorName "DEL"
ModelName "DELL SP2309W"
# Block type: 2:0 3:ff
# Block type: 2:0 3:fd
HorizSync 30-92
VertRefresh 56-85
# Max dot clock (video bandwidth) 170 MHz
# Block type: 2:0 3:fc
# DPMS capabilities: Active off:yes Suspend:yes Standby:yes
Mode "2048x1152" # vfreq 59.909Hz, hfreq 70.992kHz
DotClock 156.750000
HTimings 2048 2096 2128 2208
VTimings 1152 1155 1160 1185
Flags "-HSync" "+VSync"
EndMode
# Block type: 2:0 3:ff
# Block type: 2:0 3:fd
# Block type: 2:0 3:fc
EndSection
a...@biblioteket:~$
--
[i915] 23" external Dell VGA monitor at full resolution not possible with
Desktop Effects enabled
https://bugs.launchpad.net/bugs/426380
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