I'd like to perform a bisect to figure out what commit caused this regression. We need to identify the earliest kernel where the issue started happening as well as the latest kernel that did not have this issue.
Can you test the following kernels and post back? We are looking for the first kernel version that exhibits this bug: v3.16.3: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.3-utopic/ v3.16.4: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.4-utopic/ v3.16.5: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.5-utopic/ You don't have to test every kernel, just up until the kernel that first has this bug. Thanks in advance! ** Tags added: performing-bisect -- 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/1407505 Title: No UMS support in radeon module Status in linux package in Ubuntu: Incomplete Bug description: System: Kubuntu (adm64) 14.10. Last update: 4-Jan-2015 No proprietary drivers. No 3rd party software. The last kernel I was able to run on my Utopic system is 3.16.0-17-generic. Every update thereafter failed. The last one I tried is -28. From syslog for -28 kernel: Jan 4 14:22:41 aldebaran kernel: [ 1.712424] [drm] Initialized drm 1.1.0 20060810 Jan 4 14:22:41 aldebaran kernel: [ 1.736322] [drm] VGACON disable radeon kernel modesetting. Jan 4 14:22:41 aldebaran kernel: [ 1.736375] [drm:radeon_init] *ERROR* No UMS support in radeon module! Jan 4 14:22:41 aldebaran kernel: [ 10.340446] [drm] VGACON disable radeon kernel modesetting. Jan 4 14:22:41 aldebaran kernel: [ 10.340448] [drm:radeon_init] *ERROR* No UMS support in radeon module! Jan 4 14:22:41 aldebaran kernel: [ 101.573768] [drm] VGACON disable radeon kernel modesetting. Jan 4 14:22:41 aldebaran kernel: [ 101.573771] [drm:radeon_init] *ERROR* No UMS support in radeon module! From syslog for -17 kernel: Jan 4 14:27:56 aldebaran kernel: [ 1.676277] [drm] Initialized drm 1.1.0 20060810 Jan 4 14:27:56 aldebaran kernel: [ 1.698850] [drm] radeon kernel modesetting enabled. Jan 4 14:27:56 aldebaran kernel: [ 1.698924] fb: switching to radeondrmfb from VESA VGA Jan 4 14:27:56 aldebaran kernel: [ 1.699341] [drm] initializing kernel modesetting (TURKS 0x1002:0x6758 0x1043:0x03EA). Jan 4 14:27:56 aldebaran kernel: [ 1.699351] [drm] register mmio base: 0xFDDC0000 Jan 4 14:27:56 aldebaran kernel: [ 1.699352] [drm] register mmio size: 131072 Jan 4 14:27:56 aldebaran kernel: [ 1.699877] [drm] Detected VRAM RAM=1024M, BAR=256M Jan 4 14:27:56 aldebaran kernel: [ 1.699878] [drm] RAM width 128bits DDR Jan 4 14:27:56 aldebaran kernel: [ 1.700079] [drm] radeon: 1024M of VRAM memory ready Jan 4 14:27:56 aldebaran kernel: [ 1.700081] [drm] radeon: 1024M of GTT memory ready. Jan 4 14:27:56 aldebaran kernel: [ 1.700092] [drm] Loading TURKS Microcode Jan 4 14:27:56 aldebaran kernel: [ 1.700180] [drm] Internal thermal controller with fan control Jan 4 14:27:56 aldebaran kernel: [ 1.700714] [drm] radeon: power management initialized Jan 4 14:27:56 aldebaran kernel: [ 1.700815] [drm] GART: num cpu pages 262144, num gpu pages 262144 Jan 4 14:27:56 aldebaran kernel: [ 1.701896] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0 Jan 4 14:27:56 aldebaran kernel: [ 1.711628] [drm] PCIE GART of 1024M enabled (table at 0x0000000000273000). Jan 4 14:27:56 aldebaran kernel: [ 1.713260] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). Jan 4 14:27:56 aldebaran kernel: [ 1.713262] [drm] Driver supports precise vblank timestamp query. Jan 4 14:27:56 aldebaran kernel: [ 1.713314] [drm] radeon: irq initialized. Jan 4 14:27:56 aldebaran kernel: [ 1.729572] [drm] ring test on 0 succeeded in 1 usecs Jan 4 14:27:56 aldebaran kernel: [ 1.729629] [drm] ring test on 3 succeeded in 1 usecs Jan 4 14:27:56 aldebaran kernel: [ 1.934934] [drm] ring test on 5 succeeded in 1 usecs Jan 4 14:27:56 aldebaran kernel: [ 1.934938] [drm] UVD initialized successfully. Jan 4 14:27:56 aldebaran kernel: [ 1.935061] [drm] ib test on ring 0 succeeded in 0 usecs Jan 4 14:27:56 aldebaran kernel: [ 1.935081] [drm] ib test on ring 3 succeeded in 0 usecs Jan 4 14:27:56 aldebaran kernel: [ 2.105144] [drm] ib test on ring 5 succeeded Jan 4 14:27:56 aldebaran kernel: [ 2.105738] [drm] Radeon Display Connectors Jan 4 14:27:56 aldebaran kernel: [ 2.105740] [drm] Connector 0: Jan 4 14:27:56 aldebaran kernel: [ 2.105741] [drm] DP-1 Jan 4 14:27:56 aldebaran kernel: [ 2.105742] [drm] HPD4 Jan 4 14:27:56 aldebaran kernel: [ 2.105743] [drm] DDC: 0x6480 0x6480 0x6484 0x6484 0x6488 0x6488 0x648c 0x648c Jan 4 14:27:56 aldebaran kernel: [ 2.105744] [drm] Encoders: Jan 4 14:27:56 aldebaran kernel: [ 2.105745] [drm] DFP1: INTERNAL_UNIPHY2 Jan 4 14:27:56 aldebaran kernel: [ 2.105745] [drm] Connector 1: Jan 4 14:27:56 aldebaran kernel: [ 2.105746] [drm] HDMI-A-1 Jan 4 14:27:56 aldebaran kernel: [ 2.105747] [drm] HPD2 Jan 4 14:27:56 aldebaran kernel: [ 2.105748] [drm] DDC: 0x6470 0x6470 0x6474 0x6474 0x6478 0x6478 0x647c 0x647c Jan 4 14:27:56 aldebaran kernel: [ 2.105748] [drm] Encoders: Jan 4 14:27:56 aldebaran kernel: [ 2.105749] [drm] DFP2: INTERNAL_UNIPHY2 Jan 4 14:27:56 aldebaran kernel: [ 2.105750] [drm] Connector 2: Jan 4 14:27:56 aldebaran kernel: [ 2.105751] [drm] DVI-I-1 Jan 4 14:27:56 aldebaran kernel: [ 2.105751] [drm] HPD1 Jan 4 14:27:56 aldebaran kernel: [ 2.105752] [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c Jan 4 14:27:56 aldebaran kernel: [ 2.105753] [drm] Encoders: Jan 4 14:27:56 aldebaran kernel: [ 2.105754] [drm] DFP3: INTERNAL_UNIPHY Jan 4 14:27:56 aldebaran kernel: [ 2.105754] [drm] CRT1: INTERNAL_KLDSCP_DAC1 Jan 4 14:27:56 aldebaran kernel: [ 2.154011] [drm] fb mappable at 0xD0474000 Jan 4 14:27:56 aldebaran kernel: [ 2.154013] [drm] vram apper at 0xD0000000 Jan 4 14:27:56 aldebaran kernel: [ 2.154014] [drm] size 9216000 Jan 4 14:27:56 aldebaran kernel: [ 2.154014] [drm] fb depth is 24 Jan 4 14:27:56 aldebaran kernel: [ 2.154015] [drm] pitch is 7680 Jan 4 14:27:56 aldebaran kernel: [ 2.154154] fbcon: radeondrmfb (fb0) is primary device Jan 4 14:27:56 aldebaran kernel: [ 2.154213] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device Jan 4 14:27:56 aldebaran kernel: [ 2.160162] [drm] Initialized radeon 2.39.0 20080528 for 0000:01:00.0 on minor 0 - I've tried regenerating /boot/grub/grub.cfg but there are no differences with previous file. - The kernel command line is the same for both kernels. Regards Philippe To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1407505/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
