[Bug 79261] [snb] [Samsung NP530U3C-A02CL] [drm:ilk_display_irq_handler] *ERROR* Pipe A FIFO underrun

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=79261

mb_pub at gmx.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mb_pub at gmx.de

--- Comment #7 from mb_pub at gmx.de ---
After upgrading from Debian Wheezy to Jessie (I know it's not stable yet) I get
the same error on my Dell Inspiron 5520 notebook. It continues to boot normally
after displaying the message, though.


Hardware:

Processor : Intel Core i5-3210M (up to 3.1 GHz)
Graphics : 1GB AMD Radeon HD 7670M
Wireless : Dell Wireless 1704 Card


$ uname -a
Linux X3 3.16-2-amd64 #1 SMP Debian 3.16.3-2 (2014-09-20) x86_64 GNU/Linux


$ dmesg | grep drm
[   17.637007] [drm] Initialized drm 1.1.0 20060810
[   18.048278] [drm] Memory usable by graphics device = 2048M
[   18.048281] [drm] Replacing VGA console driver
[   18.073579] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   18.073580] [drm] Driver supports precise vblank timestamp query.
[   18.104481] [drm] radeon kernel modesetting enabled.
[   18.115093] fbcon: inteldrmfb (fb0) is primary device
[   18.389167] [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo
underrun on pch transcoder A
[   18.389179] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO
underrun
[   18.813312] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[   18.839696] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor
0
[   18.839823] [drm] initializing kernel modesetting (TURKS 0x1002:0x6840
0x1028:0x056A).
[   18.839838] [drm] register mmio base: 0xC0000000
[   18.839840] [drm] register mmio size: 131072
[   19.836124] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off
[   22.568383] [drm] Detected VRAM RAM=1024M, BAR=256M
[   22.568385] [drm] RAM width 128bits DDR
[   22.568626] [drm] radeon: 1024M of VRAM memory ready
[   22.568628] [drm] radeon: 1024M of GTT memory ready.
[   22.568654] [drm] Loading TURKS Microcode
[   22.644354] [drm] Internal thermal controller with fan control
[   22.645392] [drm] radeon: power management initialized
[   22.660834] [drm] GART: num cpu pages 262144, num gpu pages 262144
[   22.662066] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[   22.664838] [drm] PCIE GART of 1024M enabled (table at 0x0000000000273000).
[   22.665737] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   22.665739] [drm] Driver supports precise vblank timestamp query.
[   22.665813] [drm] radeon: irq initialized.
[   22.682383] [drm] ring test on 0 succeeded in 1 usecs
[   22.682439] [drm] ring test on 3 succeeded in 1 usecs
[   22.868281] [drm] ring test on 5 succeeded in 1 usecs
[   22.868286] [drm] UVD initialized successfully.
[   22.868626] [drm] ib test on ring 0 succeeded in 0 usecs
[   22.868671] [drm] ib test on ring 3 succeeded in 0 usecs
[   23.019138] [drm] ib test on ring 5 succeeded
[   23.020019] [drm] Radeon Display Connectors
[   23.027433] [drm] Cannot find any crtc or sizes - going 1024x768
[   23.028503] [drm] fb mappable at 0xA0474000
[   23.028504] [drm] vram apper at 0xA0000000
[   23.028505] [drm] size 3145728
[   23.028506] [drm] fb depth is 24
[   23.028506] [drm]    pitch is 4096
[   23.028569] radeon 0000:01:00.0: fb1: radeondrmfb frame buffer device
[   23.028582] [drm] Initialized radeon 2.39.0 20080528 for 0000:01:00.0 on
minor 1
[   40.478604] [drm] enabling PCIE gen 2 link speeds, disable with
radeon.pcie_gen2=0
[   40.482258] [drm] PCIE GART of 1024M enabled (table at 0x0000000000273000).
[   40.499434] [drm] ring test on 0 succeeded in 1 usecs
[   40.499493] [drm] ring test on 3 succeeded in 1 usecs
[   40.685328] [drm] ring test on 5 succeeded in 1 usecs
[   40.685334] [drm] UVD initialized successfully.
[   40.685394] [drm] ib test on ring 0 succeeded in 0 usecs
[   40.685446] [drm] ib test on ring 3 succeeded in 1 usecs
[   40.856125] [drm] ib test on ring 5 succeeded

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.