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[Bug 426380] Re: [i915] 23" external Dell VGA monitor at full resolution not possible with Desktop Effects enabled

 

I have the same problem (kernel 2.6.31-17-generic, xserver-xorg-video-intel 2:2.9.0-1ubuntu):
aw@biblioteket:~$ sudo dmidecode -s system-product-name
Macmini1,1
aw@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

aw@biblioteket:~$


aw@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
aw@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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