Also affects 201305-13641 This system will enter the low-graphic mode when booting with 12.04.4 USB Console (Ctrl+Alt+F1) works fine.
14.04 Trusty dailylive works fine on this system too. 00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8610G] [1002:990f] 01:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A] [1002:6660] Some error message could be found in dmesg: [ 21.267329] [drm] radeon: irq initialized. [ 21.287395] [drm] ring test on 0 succeeded in 1 usecs [ 21.287404] [drm] ring test on 1 succeeded in 1 usecs [ 21.287410] [drm] ring test on 2 succeeded in 1 usecs [ 21.287474] [drm] ring test on 3 succeeded in 2 usecs [ 21.287484] [drm] ring test on 4 succeeded in 1 usecs [ 21.289263] [drm] ib test on ring 0 succeeded in 0 usecs [ 21.289347] [drm] ib test on ring 1 succeeded in 0 usecs [ 21.289536] [drm] ib test on ring 2 succeeded in 0 usecs [ 21.289632] [drm] ib test on ring 3 succeeded in 0 usecs [ 21.289736] [drm] ib test on ring 4 succeeded in 1 usecs [ 21.290020] [drm] Radeon Display Connectors [ 21.290029] [drm] Internal thermal controller without fan control [ 21.290114] [drm] radeon: power management initialized [ 21.290120] radeon 0000:01:00.0: No connectors reported connected with modes [ 21.290123] [drm] Cannot find any crtc or sizes - going 1024x768 [ 21.292543] [drm] fb mappable at 0xE1150000 [ 21.292544] [drm] vram apper at 0xE0000000 [ 21.292546] [drm] size 3145728 [ 21.292547] [drm] fb depth is 24 [ 21.292548] [drm] pitch is 4096 [ 21.292795] radeon 0000:01:00.0: fb1: radeondrmfb frame buffer device [ 21.293009] [drm:radeon_acpi_init] *ERROR* Cannot find a backlight controller [ 21.293079] [drm] Initialized radeon 2.34.0 20080528 for 0000:01:00.0 on minor 1 ** Attachment added: "dmesg-201305-13641.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1290745/+attachment/4027775/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1290745 Title: [Radeon HD 8670A][1002:6660] Unable to load into live desktop after clicked "Try Ubuntu" on 12.04.4 bootable usb drive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1290745/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
