redraw issues on i915 since 4.9-rc

From: Norbert Preining
Date: Fri Nov 04 2016 - 07:50:34 EST

Dear all,

since 4.9-rc series started I see heavy redraw problems on i915. Starting
or resizing for example the digikam window messes up completely the content.

I have seen this at least since rc2 (I often wait till rc2), and
confirm that 4.8.0 does not exhibit these problems.

A screenshot of the redraw problems is attached.

i915 0000:00:02.0: fb0: inteldrmfb frame buffer device

(II) Module modesetting: vendor="X.Org Foundation"
compiled for 1.18.4, module version = 1.18.4
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 20.0

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Sony Corporation Haswell-ULT Integrated Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 40
Memory at df400000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 1000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915

Debian/sid uptodate

Thanks a lot


PREINING Norbert + TeX Live & Debian Developer +
GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13

Attachment: digikam-screenshot.jpg
Description: JPEG image