Hi Russell, Can you make new gitlab: https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs ? Br, Jani > -----Original Message----- > From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Russell > King (Oracle) > Sent: lauantai 5. marraskuuta 2022 17.17 > To: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>; Joonas Lahtinen > <joonas.lahtinen@xxxxxxxxxxxxxxx>; Vivi, Rodrigo <rodrigo.vivi@xxxxxxxxx>; > Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx> > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: BUG: i915: flickering/temporary artifacts after resume > > Hi, > > I have a HP Pavilion 15" laptop that occasionally misbehaves after a resume from > suspend mode. The problem is obvious when the screen updates e.g. after > moving the mouse and the window focus changing, or when a terminal scrolls, I > get a ficker of random short horizontal white lines over the top of the windows > that then disappear. These appear to be predominantly focused towards the top > of the screen, although they do also occur lower down but less obviously. > > Soemtimes these artifacts don't disappear until the next update - I attempted to > capture them, but of course that provokes another screen update and they > disappear. > > When this problem occurs, suspending and resuming again doesn't appear to fix > the issue - only a reboot does. > > Environment: > > 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02) > (prog-if 00 [VGA controller]) > DeviceName: Intel Kabylake HD Graphics ULT GT2 > Subsystem: Hewlett-Packard Company HD Graphics 620 > Flags: bus master, fast devsel, latency 0, IRQ 130, IOMMU group 1 > Memory at a0000000 (64-bit, non-prefetchable) [size=16M] > Memory at 90000000 (64-bit, prefetchable) [size=256M] > I/O ports at 4000 [size=64] > Expansion ROM at 000c0000 [virtual] [disabled] [size=128K] > Capabilities: [40] Vendor Specific Information: Len=0c <?> > Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 > Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit- > Capabilities: [d0] Power Management version 2 > Capabilities: [100] Process Address Space ID (PASID) > Capabilities: [200] Address Translation Service (ATS) > Capabilities: [300] Page Request Interface (PRI) > Kernel driver in use: i915 > Kernel modules: i915 > > Debian Bullseye (stable), Xorg 1.20.11, libdrm 2.4.104, intel xorg driver > 2.99.917+git20200714. > > Kernel messages related to DRM: > > Linux version 5.10.0-19-amd64 (debian-kernel@xxxxxxxxxxxxxxxx) (gcc-10 (Debian 1 > 0.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian > 5.10.149-1 (2022-10-17) > ... > i915 0000:00:02.0: [drm] VT-d active for gfx access checking generic (90000000 > 408000) vs hw (a0000000 1000000) checking generic (90000000 408000) vs hw > (90000000 10000000) > fb0: switching to inteldrmfb from EFI VGA > Console: switching to colour dummy device 80x25 > i915 0000:00:02.0: vgaarb: deactivate vga console > i915 0000:00:02.0: vgaarb: changed VGA decodes: > olddecodes=io+mem,decodes=io+mem:owns=io+mem > i915 0000:00:02.0: firmware: direct-loading firmware i915/kbl_dmc_ver1_04.bin > i915 0000:00:02.0: [drm] Finished loading DMC firmware > i915/kbl_dmc_ver1_04.bin (v1.4) [drm] Initialized i915 1.6.0 20200917 for > 0000:00:02.0 on minor 0 > ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) > input: Video Bus as > /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input6 > fbcon: i915drmfb (fb0) is primary device > Console: switching to colour frame buffer device 170x48 > i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device mei_hdcp > 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops > i915_hdcp_component_ops [i915]) snd_hda_intel 0000:00:1f.3: bound > 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) (NULL device *): > firmware: direct-loading firmware i915/kbl_dmc_ver1_04.bin mei_hdcp > 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 ( ops > i915_hdcp_component_ops [i915]) > > The last two lines repeat each time the system is suspended/resumed. > > No errors or warnings appear to be logged either from the kernel nor in the Xorg > log file specific to i915 (there's the usual Xorg whinging about the system being > too slow... so an i5-7200U 2.5GHz isn't fast enough for Xorg!) > > It feels like some setting within the Intel GPU hardware that controls memory > access timing isn't being properly restored. > > Is this a known issue? > > Thanks. > > Russell. > > -- > RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ > FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
