<div dir="ltr">What about keeping display power managment off<div><a href="https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling">https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling</a><br>
</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jul 14, 2014 at 9:17 AM, NickS <span dir="ltr"><<a href="mailto:nicks272@yahoo.co.uk" target="_blank">nicks272@yahoo.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:10pt">
<div class=""><div><font color="black" face="Verdana,Arial,Helvetica"><font color="black" face="Verdana,Arial,Helvetica">> Actually, after re-reading the post, the correct answer for <br clear="none">> your particular problem may be to add <br clear="none">
> <br clear="none"> > Option "UseHotplugEvents" "False" <br clear="none"> ><br clear="none">> to your xorg.conf (or equivalent) file. <br clear="none"></font></font></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal">
<br clear="none"></div></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal"><font color="black" face="Verdana,Arial,Helvetica"><font color="black" face="Verdana,Arial,Helvetica">Thanks
Gary, I'd not come across that before. I tried it (and lots of other
fiddling with xorg.conf) over the weekend and unfortunately it doesn't
seem to work. Here's my current /etc/X11/xorg.conf file:</font></font></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal"><br clear="none">
</div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal"> Section "Monitor"<br clear="none"> Identifier "HDMI-0"<br clear="none">
VendorName "LG"<br clear="none"> ModelName "42LM620T"<br clear="none"> Option "UseHotplugEvents" "false"<br clear="none"> Option "Primary" "true"</div>
<div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal"> Option "DPMS" "false"<br clear="none"> EndSection<br clear="none">
<br clear="none"> Section "Screen"<br clear="none"> Identifier "Screen0"<br clear="none"> Monitor "HDMI-0"<br clear="none"> EndSection<br clear="none"></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal">
<br clear="none"></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal">which appears to be detected:</div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal">
<br clear="none"></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal"> ~$ grep
"xorg.conf" /var/log/Xorg.0.log<br clear="none"> [ 1114.119] (==) Using config file: "/etc/X11/xorg.conf"<br clear="none"></div><div style="color:rgb(0,0,0);font-size:13px;font-family:Verdana,Arial,Helvetica;background-color:transparent;font-style:normal">
<br clear="none"></div><font>but isn't having the desired effect.<br clear="none"><br clear="none">I suspect that the "</font>UseHotplugEvents"
option is NVidia specific, as I can't find any mention of it in the
manpages for xorg.conf or radeon . It looks like EDID options (like
"UseEDID") are nvidia specific too, so xorg.conf with ATI is looking
like a dead-end :(<br clear="none"><br clear="none">I'll
keep searching and trying things (including your EDID kernel
suggestion), but in the end I may have no option but to revert back to a
legacy kernel and proprietary ATI driver that
supports my <font color="black" face="Verdana,Arial,Helvetica"><font color="black" face="Verdana,Arial,Helvetica">Radeon HD 4250. In the meantime any other so</font></font>lutions would be most welcome. Thanks,<br clear="none">
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