I suspect this is some “deep down inside” power management related stuff, but that’s just a hunch.
As you can imagine, this is annoying as heck & if I didn’t have an external monitor the thing would be useless. The issue starts at some point during the boot process, way before any GUI is running. I think I’ve seen some i915 messages at that point in time.
Sometimes I can make it “go away” by turning the internal LCD off and on again a couple of times (KDE display settings).
When booting a rescue live system (non-suse, somewhat older kernel), this issue is non-existent (and wasn’t on TW before).
Any pointers? I don’t care much for VGA power management, so if this can be turned off completely by some i915 kernel parameter, I’m totally fine with that.
System:
Host: linux-1p8x Kernel: 6.6.3-1-default arch: x86_64 bits: 64 (TW: 20231204)
Desktop: KDE Plasma v: 5.27.9 Distro: openSUSE Tumbleweed 20231204
CPU:
Info: quad core model: Intel Core i7-7700T bits: 64 type: MT MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 816 min/max: 800/3800 cores: 1: 800 2: 800 3: 800 4: 817
5: 900 6: 811 7: 800 8: 800
Graphics:
Device-1: Intel HD Graphics 630 driver: i915 v: kernel
Display: x11 server: X.Org v: 21.1.9 with: Xwayland v: 23.2.2 driver: X:
loaded: modesetting unloaded: fbdev,vesa dri: iris gpu: i915 resolution:
1: 1920x1080~60Hz 2: 1920x1080~60Hz
API: EGL v: 1.5 drivers: iris,swrast platforms: x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 23.2.1
renderer: Mesa Intel HD Graphics 630 (KBL GT2)
API: Vulkan v: 1.3.268 drivers: intel,llvmpipe surfaces: xcb,xlib