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[Rickytoo <896648@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Release 11.10

Live CD enabled a large range of resolutions support by my graphics card
and monitor. Following the install, a single resolution (1280x1024) is
available in Displays.

My graphics card doesn't appear to be recognised reliably;
sudo lshw -C video - most often produces no output
lspci | grep VGA - most often produces no output
one time they did produce appropriate output, at that time I was able to set resolutions appropriately, but subsequently lost it on rebooting. I use this graphics card in dual boot with Vista quite reliably.

The one time 'sudo lshw -C video' produced output:
  *-display               
       description: VGA compatible controller
       product: Radeon HD 4770 [RV740]
       vendor: ATI Technologies Inc
       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:46 memory:d0000000-dfffffff memory:fe8e0000-fe8effff ioport:c000(size=256) memory:fe8c0000-fe8dffff

sudo get-edid|parse-edid - gives:
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 0xc0278 "ATI ATOMBIOS"

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:fc
	Identifier "HM204DA/DTA"
	VendorName "IVM"
	ModelName "HM204DA/DTA"
	# Block type: 2:0 3:fc
	# Block type: 2:0 3:fd
	HorizSync 30-142
	VertRefresh 50-200
	# Max dot clock (video bandwidth) 390 MHz
	# EDID version 3 GTF given: contact author
	# DPMS capabilities: Active off:yes  Suspend:yes  Standby:yes

	Mode 	"1280x1024"	# vfreq 85.001Hz, hfreq 91.376kHz
		DotClock	159.360000
		HTimings	1280 1376 1512 1744
		VTimings	1024 1025 1028 1075
		Flags	"+HSync" "+VSync"
	EndMode
	# Block type: 2:0 3:fc
	# Block type: 2:0 3:fd
	Mode 	"2048x1536"	# vfreq 85.000Hz, hfreq 137.020kHz
		DotClock	388.040000
		HTimings	2048 2216 2440 2832
		VTimings	1536 1537 1540 1612
		Flags	"+HSync" "+VSync"
	EndMode
EndSection
The identifier and frequency ranges are correct - thats as much as I can say.

Thanks.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
.tmp.unity.support.test.1:
 
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,snap,vpswitch,regex,mousepoll,gnomecompat,imgpng,grid,resize,move,place,animation,wall,fade,unitymtgrabhandles,scale,expo,workarounds,session,ezoom,unityshell]
CompositorRunning: None
Date: Sat Nov 26 18:00:28 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: System manufacturer System Product Name
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic root=UUID=85cb0fb2-5f2e-425a-a9e3-4f949f3b1ace ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/07/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2102
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5Q
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2102:bd04/07/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5Q:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oneiric resolution running-unity ubuntu

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https://bugs.launchpad.net/bugs/896648

Title:
  Monitor resolution

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