Dear Maintainer, I tried to add source line information to the Xorg backtrace:
fdd in inl at /usr/include/x86_64-linux-gnu/sys/io.h:83 (pci_device_linux_sysfs_read32+93) f1a in x86emuOp_in_word_AX_DX at ../../../../../../hw/xfree86/int10/../x86emu/ops.c:10364 024 in X86EMU_exec at ../../../../../../hw/xfree86/int10/../x86emu/decode.c:135 995 in xf86ExecX86int10 at ../../../../../../hw/xfree86/int10/xf86x86emu.c:39 486 in VBESetVBEMode at ../../../../../../hw/xfree86/int10/vbe.c:473 200 in VESASetMode at ../../src/vesa.c:1247 405 in VESAEnterVT at ../../src/vesa.c:1166 127 in CMapEnterVT at ../../../../../../hw/xfree86/common/xf86cmap.c:475 e31 in xf86VTEnter at ../../../../../../hw/xfree86/common/xf86Events.c:456 243 in WakeupHandler at ../../../../dix/dixutils.c:427 6b8 in WaitForSomething at ../../../../os/WaitFor.c:210 473 in Dispatch at ../../../../dix/dispatch.c:492 6cc in dix_main at ../../../../dix/main.c:272
[ 6.584] Current Operating System: Linux keats 4.19.0-5-amd64 #1 SMP Debian 4.19.37-6 (2019-07-18) x86_64
The used kernel version is not from current testing. Could that be the reason why the vesa driver gets selected at all in the first place? Kind regards, Bernhard