Dear Linux folks,
as reported in the channel #radeon on <irc.freenode.net>, with the
laptop Asus U38N-C4010H with an AMD Radeon HD 7600G
(Trinity A8-4555M) I am unable to get something displayed on the screen
with modesetting enabled. The backlight of the screen is on, but nothing
is shown on the screen. Booting with `radeon.modeset=0` on the Linux
kernel command line works. I was able to reproduce this problem with
Grml with Linux 3.10 and 3.11 and Debian Sid/unstable with Linux 3.12.6.
Attaching a VGA monitor to the mini VGA connector using an adapter,
nothing was shown on the monitor either.
The following is the output I get when starting with `radeon.modeset=0`
and then doing `sudo modprobe -r radeon` and `sudo modprobe radeon
modeset=1`.
Jan 11 06:42:24 myhostname kernel: [ 1060.871165] [drm] radeon kernel modesetting enabled.
Jan 11 06:42:24 myhostname kernel: [ 1060.871244] checking generic (d0000000 1f0000) vs hw (d0000000 10000000)
Jan 11 06:42:24 myhostname kernel: [ 1060.871247] fb: conflicting fb hw usage radeondrmfb vs EFI VGA - removing generic driver
Jan 11 06:42:24 myhostname kernel: [ 1060.871322] Console: switching to colour dummy device 80x25
Jan 11 06:42:24 myhostname kernel: [ 1060.871836] [drm] initializing kernel modesetting (ARUBA 0x1002:0x9908 0x1043:0x1557).
Jan 11 06:42:24 myhostname kernel: [ 1060.871882] [drm] register mmio base: 0xFEB00000
Jan 11 06:42:24 myhostname kernel: [ 1060.871884] [drm] register mmio size: 262144
Jan 11 06:42:24 myhostname kernel: [ 1060.871913] [drm] ACPI VFCT contains a BIOS for 00:01.0 1002:9908, size 19968
Jan 11 06:42:24 myhostname kernel: [ 1060.871925] ATOM BIOS: 113
Jan 11 06:42:24 myhostname kernel: [ 1060.871997] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
Jan 11 06:42:24 myhostname kernel: [ 1060.872000] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 - 0x000000006FFFFFFF
Jan 11 06:42:24 myhostname kernel: [ 1060.872003] [drm] Detected VRAM RAM=768M, BAR=256M
Jan 11 06:42:24 myhostname kernel: [ 1060.872005] [drm] RAM width 64bits DDR
Jan 11 06:42:24 myhostname kernel: [ 1060.872088] [TTM] Zone kernel: Available graphics memory: 1581256 kiB
Jan 11 06:42:24 myhostname kernel: [ 1060.872091] [TTM] Initializing pool allocator
Jan 11 06:42:24 myhostname kernel: [ 1060.872101] [TTM] Initializing DMA pool allocator
Jan 11 06:42:24 myhostname kernel: [ 1060.872129] [drm] radeon: 768M of VRAM memory ready
Jan 11 06:42:24 myhostname kernel: [ 1060.872133] [drm] radeon: 1024M of GTT memory ready.
Jan 11 06:42:24 myhostname kernel: [ 1060.874660] radeon 0000:00:01.0: firmware: direct-loading firmware radeon/TAHITI_uvd.bin
Jan 11 06:42:24 myhostname kernel: [ 1060.874989] [drm] GART: num cpu pages 262144, num gpu pages 262144
Jan 11 06:42:24 myhostname kernel: [ 1060.882325] [drm] Loading ARUBA Microcode
Jan 11 06:42:24 myhostname kernel: [ 1060.882749] radeon 0000:00:01.0: firmware: direct-loading firmware radeon/ARUBA_pfp.bin
Jan 11 06:42:24 myhostname kernel: [ 1060.883100] radeon 0000:00:01.0: firmware: direct-loading firmware radeon/ARUBA_me.bin
Jan 11 06:42:24 myhostname kernel: [ 1060.883456] radeon 0000:00:01.0: firmware: direct-loading firmware radeon/ARUBA_rlc.bin
Jan 11 06:42:24 myhostname kernel: [ 1060.884967] [drm] PCIE GART of 1024M enabled (table at 0x0000000000276000).
Jan 11 06:42:24 myhostname kernel: [ 1060.885159] radeon 0000:00:01.0: WB enabled
Jan 11 06:42:24 myhostname kernel: [ 1060.885166] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000030000c00 and cpu addr 0xffff880129f11c00
Jan 11 06:42:24 myhostname kernel: [ 1060.885905] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc90011db5a18
Jan 11 06:42:24 myhostname kernel: [ 1060.885910] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000030000c04 and cpu addr 0xffff880129f11c04
Jan 11 06:42:24 myhostname kernel: [ 1060.885914] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000030000c08 and cpu addr 0xffff880129f11c08
Jan 11 06:42:24 myhostname kernel: [ 1060.885918] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000030000c0c and cpu addr 0xffff880129f11c0c
Jan 11 06:42:24 myhostname kernel: [ 1060.885922] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000030000c10 and cpu addr 0xffff880129f11c10
Jan 11 06:42:24 myhostname kernel: [ 1060.885929] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
Jan 11 06:42:24 myhostname kernel: [ 1060.885931] [drm] Driver supports precise vblank timestamp query.
Jan 11 06:42:24 myhostname kernel: [ 1060.885958] radeon 0000:00:01.0: irq 52 for MSI/MSI-X
Jan 11 06:42:24 myhostname kernel: [ 1060.885982] radeon 0000:00:01.0: radeon: using MSI.
Jan 11 06:42:24 myhostname kernel: [ 1060.886266] [drm] radeon: irq initialized.
Jan 11 06:42:24 myhostname kernel: [ 1060.905813] [drm] ring test on 0 succeeded in 2 usecs
Jan 11 06:42:24 myhostname kernel: [ 1060.905876] [drm] ring test on 3 succeeded in 2 usecs
Jan 11 06:42:24 myhostname kernel: [ 1060.905885] [drm] ring test on 4 succeeded in 1 usecs
Jan 11 06:42:24 myhostname kernel: [ 1060.961514] [drm] ring test on 5 succeeded in 1 usecs
Jan 11 06:42:24 myhostname kernel: [ 1060.981502] [drm] UVD initialized successfully.
Jan 11 06:42:24 myhostname kernel: [ 1060.985538] [drm] Enabling audio 0 support
Jan 11 06:42:24 myhostname kernel: [ 1060.985544] [drm] Enabling audio 1 support
Jan 11 06:42:24 myhostname kernel: [ 1060.985549] [drm] Enabling audio 2 support
Jan 11 06:42:24 myhostname kernel: [ 1060.985553] [drm] Enabling audio 3 support
Jan 11 06:42:24 myhostname kernel: [ 1060.985557] [drm] Enabling audio 4 support
Jan 11 06:42:24 myhostname kernel: [ 1060.985560] [drm] Enabling audio 5 support
Jan 11 06:42:24 myhostname kernel: [ 1060.986106] [drm] ib test on ring 0 succeeded in 0 usecs
Jan 11 06:42:24 myhostname kernel: [ 1060.986644] [drm] ib test on ring 3 succeeded in 0 usecs
Jan 11 06:42:24 myhostname kernel: [ 1060.987175] [drm] ib test on ring 4 succeeded in 1 usecs
Jan 11 06:42:24 myhostname kernel: [ 1061.007977] [drm] ib test on ring 5 succeeded
Jan 11 06:42:24 myhostname kernel: [ 1061.032890] [drm] radeon atom DIG backlight initialized
Jan 11 06:42:24 myhostname kernel: [ 1061.032894] [drm] Radeon Display Connectors
Jan 11 06:42:24 myhostname kernel: [ 1061.032897] [drm] Connector 0:
Jan 11 06:42:24 myhostname kernel: [ 1061.032899] [drm] eDP-1
Jan 11 06:42:24 myhostname kernel: [ 1061.032901] [drm] HPD1
Jan 11 06:42:24 myhostname kernel: [ 1061.032904] [drm] DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c
Jan 11 06:42:24 myhostname kernel: [ 1061.032906] [drm] Encoders:
Jan 11 06:42:24 myhostname kernel: [ 1061.032908] [drm] LCD1: INTERNAL_UNIPHY2
Jan 11 06:42:24 myhostname kernel: [ 1061.032909] [drm] Connector 1:
Jan 11 06:42:24 myhostname kernel: [ 1061.032911] [drm] VGA-1
Jan 11 06:42:24 myhostname kernel: [ 1061.032912] [drm] HPD2
Jan 11 06:42:24 myhostname kernel: [ 1061.032915] [drm] DDC: 0x6540 0x6540 0x6544 0x6544 0x6548 0x6548 0x654c 0x654c
Jan 11 06:42:24 myhostname kernel: [ 1061.032916] [drm] Encoders:
Jan 11 06:42:24 myhostname kernel: [ 1061.032917] [drm] CRT1: INTERNAL_UNIPHY2
Jan 11 06:42:24 myhostname kernel: [ 1061.032919] [drm] CRT1: NUTMEG
Jan 11 06:42:24 myhostname kernel: [ 1061.032920] [drm] Connector 2:
Jan 11 06:42:24 myhostname kernel: [ 1061.032922] [drm] HDMI-A-1
Jan 11 06:42:24 myhostname kernel: [ 1061.032923] [drm] HPD3
Jan 11 06:42:24 myhostname kernel: [ 1061.032925] [drm] DDC: 0x6550 0x6550 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c
Jan 11 06:42:24 myhostname kernel: [ 1061.032926] [drm] Encoders:
Jan 11 06:42:24 myhostname kernel: [ 1061.032928] [drm] DFP1: INTERNAL_UNIPHY
Jan 11 06:42:25 myhostname kernel: [ 1061.082355] [drm] Internal thermal controller without fan control
Jan 11 06:42:25 myhostname kernel: [ 1061.082493] [drm] radeon: power management initialized
Jan 11 06:42:26 myhostname kernel: [ 1062.360915] [drm] fb mappable at 0xD1488000
Jan 11 06:42:26 myhostname kernel: [ 1062.360922] [drm] vram apper at 0xD0000000
Jan 11 06:42:26 myhostname kernel: [ 1062.360926] [drm] size 8294400
Jan 11 06:42:26 myhostname kernel: [ 1062.360928] [drm] fb depth is 24
Jan 11 06:42:26 myhostname kernel: [ 1062.360931] [drm] pitch is 7680
Jan 11 06:42:26 myhostname kernel: [ 1062.361231] fbcon: radeondrmfb (fb0) is primary device
Jan 11 06:42:28 myhostname kernel: [ 1064.675993] Console: switching to colour frame buffer device 240x67
Jan 11 06:42:28 myhostname kernel: [ 1064.681973] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
Jan 11 06:42:28 myhostname kernel: [ 1064.681976] radeon 0000:00:01.0: registered panic notifier
Jan 11 06:42:28 myhostname kernel: [ 1064.682222] [drm] Initialized radeon 2.34.0 20080528 for 0000:00:01.0 on minor 0
The screen turns off shortly (backlight too) and then only the backlight
comes back up.
Any help is appreciated.
Thanks,
Paul
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