Hi,
since I upgraded to Fedora 35 I immediately noticed drawing glitches in
a virtual machine (virt-manager) and since an update to Firefox 94.0
also there (for example when opening menus), thus I guess it has
something to do with the graphics drivers or something like that. I run
X.org under MATE and I had never any such issue before the upgrade to
f35 (I do run many virtual machines for various testing reasons, thus
I'd surely notice). I tried to record the screen, but the created video
does not exhibit the problem.
The graphics stack is kinda foggy for me, I know basically nothing
about it. I do not know where to start the investigation and what to
look for.
Any suggestion, please?
Thanks and bye,
Milan
P.S.: The hwinfo says:
47: PCI 02.0: 0300 VGA compatible controller (VGA)
[Created at pci.386]
Unique ID: _Znp.46Z08LJqVYC
SysFS ID: /devices/pci0000:00/0000:00:02.0
SysFS BusID: 0000:00:02.0
Hardware Class: graphics card
Device Name: "Onboard IGD"
Model: "Intel UHD Graphics 630 (Mobile)"
Vendor: pci 0x8086 "Intel Corporation"
Device: pci 0x3e9b "UHD Graphics 630 (Mobile)"
SubVendor: pci 0x1028 "Dell"
SubDevice: pci 0x0905
Driver: "i915"
Driver Modules: "i915"
Memory Range: 0xeb000000-0xebffffff (rw,non-prefetchable)
Memory Range: 0x80000000-0x8fffffff (ro,non-prefetchable)
I/O Ports: 0x4000-0x403f (rw)
Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled)
IRQ: 148 (249285 events)
Module Alias: "pci:v00008086d00003E9Bsv00001028sd00000905bc03sc00i00"
Driver Info #0:
Driver Status: i915 is active
Driver Activation Cmd: "modprobe i915"
Config Status: cfg=new, avail=yes, need=no, active=unknown
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