Dear Maintainer, hello Kenneth, Kenneth, if you still experience this issue, please check if dmesg contains messages about missing firmwares. E.g. by this command: dmesg | grep -i firmware
At least in this bug a similar backtrace was shown and the user reported it got solved by installing "firmware-amd-graphics and amd64-microcode": https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1005929 Otherwise below is a reconstructed backtrace containing the line numbers. It might still be good to report this issue to upstream vesa driver? https://gitlab.freedesktop.org/xorg/driver/xf86-video-vesa/-/issues Kind regard, Bernhard #2 ...0e5 in inl at /usr/include/x86_64-linux-gnu/sys/io.h:83 #3 ...f1a in x86emuOp_in_word_AX_DX at ../../../../../../hw/xfree86/int10/../x86emu/ops.c:10364 #4 ...024 in X86EMU_exec at ../../../../../../hw/xfree86/int10/../x86emu/decode.c:135 #5 ...995 in xf86ExecX86int10 at ../../../../../../hw/xfree86/int10/xf86x86emu.c:39 #6 ...486 in VBESetVBEMode at ../../../../../../hw/xfree86/int10/vbe.c:473 #7 ...200 in VESASetMode at ../../src/vesa.c:1247 #8 ...405 in VESAEnterVT at ../../src/vesa.c:1166 #9 ...0f7 in CMapEnterVT at ../../../../../../hw/xfree86/common/xf86cmap.c:475 #10 ...e01 in xf86VTEnter at ../../../../../../hw/xfree86/common/xf86Events.c:456 #11 ...233 in WakeupHandler at ../../../../dix/dixutils.c:427 #12 ...578 in WaitForSomething at ../../../../os/WaitFor.c:210 #13 ...463 in Dispatch at ../../../../dix/dispatch.c:492 #14 ...6bc in dix_main at ../../../../dix/main.c:272 (gdb) list /usr/include/x86_64-linux-gnu/sys/io.h:83 78 static __inline unsigned int 79 inl (unsigned short int __port) 80 { 81 unsigned int _v; 82 83 __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (__port)); 84 return _v; 85 } 86 87 static __inline unsigned int