Antoine Pairet, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.13-rc4 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Summary changed: - Please blacklist ATI XPRESS 1250 from Kernel mode-setting + 1002:7942 Please blacklist ATI XPRESS 1250 from Kernel mode-setting ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Changed in: linux (Ubuntu) Assignee: Andy Whitcroft (apw) => (unassigned) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/558378 Title: 1002:7942 Please blacklist ATI XPRESS 1250 from Kernel mode-setting Status in “linux” package in Ubuntu: Incomplete Bug description: Please add ATI Technologies Inc Radeon Xpress 1250 [1002:7942] to the kernel drm KMS blacklist. Testing has shown that KMS support for the ati xpress 1250 is inadequate, often resulting in a regression where the system hangs during boot up. Testers have found that booting with radeon.modeset=0 restores the system functionality. This is why this particular video card should be blacklisted. As suggested by Brice Harrington in bug #542208, comment 17, it is better to keep one report per chip. [initial bug report: symptoms of what happens when one tries to boot with kms enabled] Here are some details of what happens: 1. setting nomodeset option 2. editing boot option, removing quiet and splash 3. Selecting Try Ubuntu 4. System begins to boot, lots of messages are printed on the screen 5. After 2-3 seconds, screen goes black although disk activity continues 6. Screen keeps being black and the computer is unusable ProblemType: Bug AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 3992 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xd0000000 irq 16' Mixer name : 'Realtek ALC262' Components : 'HDA:11c13026,2117144d,00100700 HDA:10ec0262,144dc511,00100002' Controls : 18 Simple ctrls : 12 Date: Thu Apr 8 11:35:16 2010 DistroRelease: Ubuntu 10.04 LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318) MachineType: SAMSUNG ELECTRONICS CO., LTD. R19/R20/R21 Package: linux-image-2.6.32-16-generic 2.6.32-16.25 ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz nosplash -- nomodeset console-setup/layoutcode=fr console-setup/variantcode=oss ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-16.25-generic Regression: Yes RelatedPackageVersions: linux-firmware 1.32 Reproducible: Yes RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux TestedUpstream: No Uname: Linux 2.6.32-16-generic x86_64 dmi.bios.date: 07/18/2007 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: 14SH dmi.board.name: R19/R20/R21 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr14SH:bd07/18/2007:svnSAMSUNGELECTRONICSCO.,LTD.:pnR19/R20/R21:pvr09SH:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR19/R20/R21:rvr:cvnSAMSUNGELECTRONICSCO.,LTD.:ct1:cvrN/A: dmi.product.name: R19/R20/R21 dmi.product.version: 09SH dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. 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