https://bugs.freedesktop.org/show_bug.cgi?id=34220
--- Comment #12 from johnlu best <johnlub...@yahoo.com> --- (In reply to comment #11) > Sounds like the bug here is that nouveau causes the VGA display to blink > on/off when checking whether it is connected. (And, to exacerbate the issue, > there's something polling every 30s to see if the monitor is connected/what > modes it has or something.) > > Could someone with an affected monitor try to > > cat /sys/class/drm/card0-VGA-0/(In reply to comment #11) > Sounds like the bug here is that nouveau causes the VGA display to blink > on/off when checking whether it is connected. (And, to exacerbate the issue, > there's something polling every 30s to see if the monitor is connected/what > modes it has or something.) > > Could someone with an affected monitor try to > > cat /sys/class/drm/card0-VGA-0/status > > (or whatever card/connector the thing is on) > > and see if that action causes the monitor to blink on/off? If not, check > /sys/.../modes and .../edid and .../dpms. I'm guessing at least one of those > will cause the blinking issue. > > My understanding of the VGA DDC stuff is that the monitor doesn't even have > to be powered on in order to get at that stuff (I guess power is supplied in > the VGA cable itself), much less have to try to show a picture. Although > perhaps not all monitors comply with that ideal. > > BTW, please be sure to test it out with the latest kernel, just in case this > has been fixed. I can confirm that blinking issue after cat /sys/class/drm/card0-VGA-0/status every ~30 seconds. I'm using nvidia 7300 gt. do you need more data? -- You are receiving this mail because: You are the assignee for the bug.
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