Am 02.03.20 um 10:18 schrieb Gerd Hoffmann: > From: "Anton V. Boyarshinov" <[email protected]> > > To calculate screen size in centimeters we should calculate: > pixels/dpi*2.54 > but not > pixels*dpi/2540 > > Using wrong formula we actually get 65 DPI and very small fonts. > > Signed-off-by: Anton V. Boyarshinov <[email protected]> > Message-id: [email protected] > Signed-off-by: Gerd Hoffmann <[email protected]> > --- > hw/display/edid-generate.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/hw/display/edid-generate.c b/hw/display/edid-generate.c > index 75c945a94813..e58472fde501 100644 > --- a/hw/display/edid-generate.c > +++ b/hw/display/edid-generate.c > @@ -360,8 +360,8 @@ void qemu_edid_generate(uint8_t *edid, size_t size, > edid[20] = 0xa5; > > /* screen size: undefined */ > - edid[21] = info->prefx * info->dpi / 2540; > - edid[22] = info->prefy * info->dpi / 2540; > + edid[21] = info->prefx * 254 / 100 / info->dpi; > + edid[22] = info->prefy * 254 / 100 / info->dpi;
Gerd, the required rounding (see my previous e-mail) for both values is still missing. Cheers, Stefan
