I've been having trouble with an intermittently flickering screen on
my laptop for the past few weeks. About half the time, it's minor,
just flickering for a few seconds, but it can get worse, lasting
for a minute or two and blanking large (nearly all) of the screen.
The worst incidents will end with the following in the log:
Jul 24 15:44:50 homelap7 kernel: i915 0000:00:02.0: [drm] HPD interrupt storm detected on connector eDP-1: switching from hotplug detection to polling
After this, the flickering stops.
Searching, I noticed issues like this associated with the i915
driver over the past few years, so I though I'd ask if there
might be a cause in recent Tumbleweed releases. Otherwise, I
guess I'm off to the local computer repair shop.
Here's some hopefully-relevant information about the graphics
> hwinfo --gfxcard
24: PCI 02.0: 0300 VGA compatible controller (VGA)
[Created at pci.386]
Unique ID: _Znp._LgIsmf7zU8
SysFS ID: /devices/pci0000:00/0000:00:02.0
SysFS BusID: 0000:00:02.0
Hardware Class: graphics card
Model: "Intel UHD Graphics 620 (Whiskey Lake)"
Vendor: pci 0x8086 "Intel Corporation"
Device: pci 0x3ea0 "UHD Graphics 620 (Whiskey Lake)"
SubVendor: pci 0x1558 "CLEVO/KAPOK Computer"
SubDevice: pci 0x1323
Driver Modules: "i915"
Memory Range: 0x6022000000-0x6022ffffff (rw,non-prefetchable)
Memory Range: 0x4000000000-0x400fffffff (ro,non-prefetchable)
I/O Ports: 0x4000-0x403f (rw)
Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled)
IRQ: 131 (15907724 events)
Module Alias: "pci:v00008086d00003EA0sv00001558sd00001323bc03sc00i00"
Driver Info #0:
Driver Status: i915 is active
Driver Activation Cmd: "modprobe i915"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Primary display adapter: #24