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aux/vga: do not set mode 3 unless connected

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This commit is contained in:
ftrvxmtrx 2015-01-02 13:29:58 +01:00
parent 8b9badd6a6
commit 7848fe5970
1 changed files with 3 additions and 3 deletions
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6
sys/src/cmd/aux/vga/vesa.c
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@ -990,11 +990,11 @@ setdisplay(Vbe *vbe, int display)
if(display == 0)
return 0;
/* switch to common mode before trying */
vbesetmode(vbe, 3);
cx = 1<<(display-1);
if(vbe->dspcon & cx){
/* switch to common mode before trying */
vbesetmode(vbe, 3);
vbesetup(vbe, &u, 0x5F64);
u.bx = 0;
u.cx = cx;