[PATCH v4] Fix divide-by-zero regression on DP MST unplug with nouveau

-[ end trace ]--- Fix this by avoiding the divide if bpp is 0. Fixes: c1d6a22b7219 ("drm/dp: Add helpers to calculate the link BW overhead") Cc: sta...@vger.kernel.org Acked-by: Imre Deak Signed-off-by: Chris Bainbridge --- drivers/gpu/drm/display/drm_dp_helper.c | 7

[PATCH v3] Fix divide-by-zero regression on DP MST unplug with nouveau

-[ end trace ]--- Fix this by avoiding the divide if bpp is 0. Fixes: c1d6a22b7219 ("drm/dp: Add helpers to calculate the link BW overhead") Cc: sta...@vger.kernel.org Acked-by: Imre Deak Signed-off-by: Chris Bainbridge --- drivers/gpu/drm/display/drm_dp_helper.c | 6 +++

[PATCH v2] Fix divide-by-zero regression on DP MST unplug with nouveau

-[ end trace ]--- Fix this by avoiding the divide if bpp is 0. Fixes: c1d6a22b7219 ("drm/dp: Add helpers to calculate the link BW overhead") Signed-off-by: Chris Bainbridge Acked-by: Imre Deak --- drivers/gpu/drm/display/drm_dp_helper.c | 7 +++ 1 file changed, 7 ins

Re: [Intel-gfx] [v4.6-10530-g28165ec7a99b] i915: *ERROR* "CPU pipe/PCH transcoder" A FIFO underrun

On 25 May 2016 at 08:31, Sedat Dilek wrote: > Hi Daniel, > > with latest Linus Git I see this with my Intel SandyBridge GPU... > > [ 17.629014] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] > *ERROR* CPU pipe A FIFO underrun > [ 17.630652] [drm:intel_set_pch_fifo_underrun_reporting [i915]]

Re: [Intel-gfx] i915 corrupting memory on shutdown since 4.4?

I eventually traced the filesystem corruption to a bug in the Apple firmware which can cause memory corruption after Linux is booted: https://bugzilla.kernel.org/show_bug.cgi?id=111781 On 29 January 2016 at 12:37, Chris Wilson wrote: > The timer error is definitely interesting The timer error bi

[Intel-gfx] i915 corrupting memory on shutdown since 4.4?

Hi, I'm using 4.5-rc1 and before that 4.4. Twice in the past month I've rebooted and the root btrfs partition has become corrupted and unbootable. I was wondering if the cause could be i915 and if so is there any better way to track it down? In test 200 reboots gave only 3 errors, but the third e

[Intel-gfx] [PATCH] drm/i915: disable non-sequential pfits on ivb/hsw

been non-sequentially assigned at boot time. Link: https://bugs.freedesktop.org/show_bug.cgi?id=93523 Signed-off-by: Chris Bainbridge --- drivers/gpu/drm/i915/intel_display.c | 26 ++ 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915