On Mon, 2011-03-21 at 01:40 -0400, John Lindgren wrote: > Hi, > > I want to report a bug in the Linux kernel 2.6.38. Loading the radeon > module causes the console to go completely blank (laptop backlight on, > but nothing displayed). The system still responds to ctrl-alt-del and > reboots. This is a regression from the previous kernel, 2.6.37.4, where > kernel mode setting works flawlessly. > > With radeon.modeset=0, or with the module blacklisted, the system boots > fine, and I can use X, but without the powersaving features available > through KMS. You should probably report that to the appropriate freedesktop mailing lists & bugzilla. I am not directly involved in the dev. of KMS. Cheers, Ben. > System: Toshiba Satellite A305-S6916 > Graphics: ATI Radeon Mobility HD 3650 > Kernel: 2.6.38 (x86_64) > > Kernel log when loading the module: > > Mar 21 00:57:38 localhost kernel: [drm] Initialized drm 1.1.0 20060810 > Mar 21 00:57:38 localhost kernel: [drm] radeon defaulting to kernel modesetting. > Mar 21 00:57:38 localhost kernel: [drm] radeon kernel modesetting enabled. > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: setting latency timer to 64 > Mar 21 00:57:38 localhost kernel: [drm] initializing kernel modesetting (RV635 0x1002:0x9591). > Mar 21 00:57:38 localhost kernel: [drm] register mmio base: 0xD6300000 > Mar 21 00:57:38 localhost kernel: [drm] register mmio size: 65536 > Mar 21 00:57:38 localhost kernel: ATOM BIOS: Tosh_IEC_Potomac_M86_DDR2 > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: VRAM: 512M 0x0000000000000000 - 0x000000001FFFFFFF (512M used) > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: GTT: 512M 0x0000000020000000 - 0x000000003FFFFFFF > Mar 21 00:57:38 localhost kernel: [drm] Detected VRAM RAM=512M, BAR=256M > Mar 21 00:57:38 localhost kernel: [drm] RAM width 128bits DDR > Mar 21 00:57:38 localhost kernel: [TTM] Zone kernel: Available graphics memory: 2027544 kiB. > Mar 21 00:57:38 localhost kernel: [TTM] Initializing pool allocator. > Mar 21 00:57:38 localhost kernel: [drm] radeon: 512M of VRAM memory ready > Mar 21 00:57:38 localhost kernel: [drm] radeon: 512M of GTT memory ready. > Mar 21 00:57:38 localhost kernel: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). > Mar 21 00:57:38 localhost kernel: [drm] Driver supports precise vblank timestamp query. > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: irq 49 for MSI/MSI-X > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: radeon: using MSI. > Mar 21 00:57:38 localhost kernel: [drm] radeon: irq initialized. > Mar 21 00:57:38 localhost kernel: [drm] GART: num cpu pages 131072, num gpu pages 131072 > Mar 21 00:57:38 localhost kernel: [drm] Loading RV635 Microcode > Mar 21 00:57:38 localhost kernel: radeon 0000:01:00.0: WB enabled > Mar 21 00:57:38 localhost kernel: [drm] ring test succeeded in 1 usecs > Mar 21 00:57:38 localhost kernel: [drm] radeon: ib pool ready. > Mar 21 00:57:38 localhost kernel: [drm] ib test succeeded in 0 usecs > Mar 21 00:57:38 localhost kernel: [drm] Enabling audio support > Mar 21 00:57:38 localhost kernel: HDMI hot plug event: Pin=3 Presence_Detect=0 ELD_Valid=0 > > > If there is any more info I can provide, please ask. > > -- John Lindgren -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
