[Bug 543021] Re: KMS broken with Radeon HD 4670 (RV730XT) and Samsung 305T

*** This bug is a duplicate of bug 564559 ***
https://bugs.launchpad.net/bugs/564559

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: linux (Ubuntu)
Status: New => Confirmed

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https://bugs.launchpad.net/bugs/543021

Title:
KMS broken with Radeon HD 4670 (RV730XT) and Samsung 305T

Status in linux package in Ubuntu:
Confirmed

Bug description:
Upon upgrading from Karmic to Lucid Beta1, no mode gets set for my
monitor. Although I successfully reach the login screen (I can hear
the GDM ready sound), my monitor just flashes its test-pattern as if
disconnected. If during the boot I hold SHIFT to enter the GRUB2 menu
and boot with the "nomodeset" option, my monitor and video card work
fine. I'm using the free "radeon" driver, not the proprietary ATI
driver.

I'll test with another monitor to see if this issue is always present,
or if it's unique to this card+monitory combination. My Samsung 305T
is a less common resolution (2560x1600), so that might be the issue.

ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jderose 2070 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfb9f8000 irq 22'
Mixer name : 'Analog Devices AD1989B'
Components : 'HDA:11d4989b,10438372,00100300'
Controls : 48
Simple ctrls : 27
Card1.Amixer.info:
Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfbbfc000 irq 34'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100100'
Controls : 4
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [off]
Date: Sat Mar 20 15:41:56 2010
DistroRelease: Ubuntu 10.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=b899b5f2-13b2-43e2-af7f-5606ca403ced
MachineType: System manufacturer System Product Name
Package: linux-image-2.6.32-16-generic 2.6.32-16.25
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-16-generic root=/dev/mapper/main-root ro quiet splash nomodeset
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
Regression: Yes
RelatedPackageVersions: linux-firmware 1.33
Reproducible: Yes
RfKill:

SourcePackage: linux
TestedUpstream: No
Uname: Linux 2.6.32-16-generic x86_64
dmi.bios.date: 05/18/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0711
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P6T WS PRO
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.:bvr0711:bd05/18/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6TWSPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

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