Date: Fri, 16 Jul 2010 19:18:30 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-stable@FreeBSD.org Cc: David DEMELIER <demelier.david@gmail.com> Subject: Re: Strange video mode output with VESA Message-ID: <201007161918.32195.jkim@FreeBSD.org> In-Reply-To: <201007161522.54572.jkim@FreeBSD.org> References: <877004.53626.qm@web59106.mail.re1.yahoo.com> <AANLkTinQI1UZUlmVluv10Obr5ibrKFu29qbYynkcrOzz@mail.gmail.com> <201007161522.54572.jkim@FreeBSD.org>
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--Boundary-00=_IjOQMTqa4EQrJwW Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Content-Disposition: inline On Friday 16 July 2010 03:22 pm, Jung-uk Kim wrote: > On Friday 16 July 2010 03:00 pm, David DEMELIER wrote: > > 2010/6/19 paradox <ddkprog@yahoo.com>: > > >>On Wednesday 02 June 2010 04:25 pm, David DEMELIER wrote: > > >>> Hi there, > > >>> > > >>> I was so happy to see that VESA is available for amd64, but > > >>> unfortunately it does not work really well for me. Take a > > >>> look at this picture : > > >>> > > >>> http://img717.imageshack.us/img717/7311/dsc00399h.jpg > > >>> > > >>> My laptop is a 15,6" so the best resolution is 1366x768, I > > >>> tried this > > >>> > > >>> : vidcontrol MODE_496. As you can see on the picture all the > > >>> : lines are > > >>> > > >>> completely everywhere, if I mouse the cursor they move away > > >>> (I'm not drunk!). > > >>> > > >>> I have SC_PIXEL_MODE in my kernel config. > > >>> > > >>> The console terminal is okay until I don't excess 1280x960x32 > > >>> video mode. > > >>> > > >>> Do you have any idea to fix this ? > > >> > > >>It is kinda known problem. 占쏙옙If the mode has larger bytes per > > >> scan line than the minimum, few characters per line are lost > > >> when the screen is scrolled up or down, i.e., framebuffer > > >> copies of whole screen. 占쏙옙When you move the mouse onto the > > >> line, entire line is redrawn and restored. 占쏙옙That's what you > > >> are seeing. 占쏙옙Ed might have a better idea how to fix it > > >> (CC'ed). > > >> > > >>Jung-uk Kim > > > > > > this is incorrent calculate the scan lines in the vesa driver > > > Jung-uk Kim should to fix it > > > > But Jung-uk Kim said Ed' should fix it so we are in an infinite > > loop :- > > No, I didn't say that. What I meant was "Ed may be a better > qualified person to fix syscons vs. terminal emulator interaction > issues." :-( Can you please try the attached patch? --Boundary-00=_IjOQMTqa4EQrJwW Content-Type: text/plain; charset="utf-8"; name="scvgarndr.c.diff" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="scvgarndr.c.diff" --- sys/dev/syscons/scvgarndr.c 2010-03-24 11:40:18.000000000 -0400 +++ sys/dev/syscons/scvgarndr.c 2010-07-16 19:05:12.000000000 -0400 @@ -728,12 +728,15 @@ vm_offset_t e; u_char *f; u_short col1, col2, color; - int line_width, pixel_size; + int line_width, off_width; + int font_size, pixel_size; int i, j, k; int a; line_width = scp->sc->adp->va_line_width; pixel_size = scp->sc->adp->va_info.vi_pixel_size; + off_width = line_width - scp->xpixel * pixel_size; + font_size = scp->font_size; d = VIDEO_MEMORY_POS(scp, from, 8 * pixel_size); @@ -752,9 +755,9 @@ } e = d; - f = &(scp->font[sc_vtb_getc(&scp->vtb, i) * scp->font_size]); + f = &(scp->font[sc_vtb_getc(&scp->vtb, i) * font_size]); - for (j = 0; j < scp->font_size; ++j, ++f) { + for (j = 0; j < font_size; ++j, ++f) { for (k = 0; k < 8; ++k) { color = *f & (1 << (7 - k)) ? col1 : col2; vga_drawpxl(e + pixel_size * k, color); @@ -766,8 +769,8 @@ d += 8 * pixel_size; if ((i % scp->xsize) == scp->xsize - 1) - d += scp->xoff * 16 * pixel_size + - (scp->font_size - 1) * line_width; + d += off_width + scp->xoff * pixel_size * font_size + + (font_size - 1) * line_width; } } --Boundary-00=_IjOQMTqa4EQrJwW--
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