<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - No mouse cursor (invisible) with dual monitors and DVI/VGA "Y" cable, no display on DVI" href="https://bugs.freedesktop.org/show_bug.cgi?id=94259#c22">Comment # 22</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - No mouse cursor (invisible) with dual monitors and DVI/VGA "Y" cable, no display on DVI" href="https://bugs.freedesktop.org/show_bug.cgi?id=94259">bug 94259</a> from <a class="email" href="mailto:huangran@iscas.ac.cn" title="HuangRan <huangran@iscas.ac.cn>"> HuangRan</a> <pre>Hi Kevin, (In reply to Kevin Brace from <a href="show_bug.cgi?id=94259#c19">comment #19</a>) > Hi Eric, > > I think I have some explanations on why the cursor does not show up on your > screen. > The way VIA Technologies Chrome family of IGP (Integrated Graphics > Processor) works is that it contains 2 display controllers internally. > They call this IGA1 and IGA2 (I do not know what IGA stands for.). IGA should be VIA's display engine(I asked this from VIA's engineer before). As I worked for RADEON driver, each IGA should has its HW cursor and as you said, the IGA engine do the HW cursor show/hide/content changing. > Most likely what is going on is that OpenChrome is not really using one of > the display controller, but the display controller is still functioning. > What this means is that the display controller hardware is still running, > but because OpenChrome is not really using this display controller, it is > not turning on the hardware cursor. So can I understand that current UMS driver does not enable HW cursor? So why not enable SW cursor instead before HW one is working? Thanks, Frank</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>