** Attachment added: "lspci -vv working" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1386973/+attachment/4299509/+files/lspci_working.txt
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1386973 Title: Ubuntu 14.10 soft lockup with ATI Radeon R7 250 X Status in xorg-server package in Ubuntu: New Bug description: I have a VGA controller Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde XT [Radeon HD 7770/8760 / R7 250X]. When I boot from the Utopic DVD I get to the language menu and I can select try ubuntu without installing, but after a few sencods I get "BUG: soft lockup - CPU#0 stuck for 22s!'" and the message just repeats every 22 secods forever. I tried setting nomodeset using the F6 menu, but I got exactly the same result. This is Ubuntu 14.10 64 bits which basically seems unable to boot with that hardware. The experience was the same with 14.04, but I thought 14.10 would be better. In 14.04 disabling the video card and booting off the integrated graphics let me set nomodeset in /etc/default/grub and I was able boot with the R7 250X with the VESA driver. Installed Catalyst afterwards. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1386973/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp