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	Comments on: Seeed / 52Pi PiShow 2.8 device tree overlay	</title>
	<atom:link href="https://alpharesearch.de/?feed=rss2&#038;p=384" rel="self" type="application/rss+xml" />
	<link>https://alpharesearch.de/?p=384</link>
	<description>The stuff I do and the stuff I like...</description>
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		<title>
		By: Michael		</title>
		<link>https://alpharesearch.de/?p=384#comment-198</link>

		<dc:creator><![CDATA[Michael]]></dc:creator>
		<pubDate>Tue, 15 Oct 2019 23:49:16 +0000</pubDate>
		<guid isPermaLink="false">http://alpharesearch.de/?p=384#comment-198</guid>

					<description><![CDATA[Hi alpha,
Yes I tried that, the lowest resolution is 720*480 and only appears to change the HDMI output, which says to me that the frame buffer isn&#039;t pushing to the GPIO. I&#039;ve tried all sorts of variations using overscan settings and forcing resolution in the boot config but no joy.
I&#039;ll see if I can get the frame buffer copy working as described in your original post. I&#039;m running a Pi4 with the latest raspbian version.]]></description>
			<content:encoded><![CDATA[<p>Hi alpha,<br />
Yes I tried that, the lowest resolution is 720*480 and only appears to change the HDMI output, which says to me that the frame buffer isn&#8217;t pushing to the GPIO. I&#8217;ve tried all sorts of variations using overscan settings and forcing resolution in the boot config but no joy.<br />
I&#8217;ll see if I can get the frame buffer copy working as described in your original post. I&#8217;m running a Pi4 with the latest raspbian version.</p>
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		<title>
		By: alpha		</title>
		<link>https://alpharesearch.de/?p=384#comment-197</link>

		<dc:creator><![CDATA[alpha]]></dc:creator>
		<pubDate>Tue, 15 Oct 2019 16:02:14 +0000</pubDate>
		<guid isPermaLink="false">http://alpharesearch.de/?p=384#comment-197</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://alpharesearch.de/?p=384#comment-196&quot;&gt;Michael&lt;/a&gt;.

I don&#039;t remember having those issues when I used the display. If I remember right the frame buffer copy tool did take care of this. But it looks like this tool doesn&#039;t work with the latest Raspbian version. Did you try raspi-config advanced option &gt; resolution to change the resolution yet?]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://alpharesearch.de/?p=384#comment-196">Michael</a>.</p>
<p>I don&#8217;t remember having those issues when I used the display. If I remember right the frame buffer copy tool did take care of this. But it looks like this tool doesn&#8217;t work with the latest Raspbian version. Did you try raspi-config advanced option > resolution to change the resolution yet?</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: Michael		</title>
		<link>https://alpharesearch.de/?p=384#comment-196</link>

		<dc:creator><![CDATA[Michael]]></dc:creator>
		<pubDate>Tue, 15 Oct 2019 13:41:53 +0000</pubDate>
		<guid isPermaLink="false">http://alpharesearch.de/?p=384#comment-196</guid>

					<description><![CDATA[Hi,
I realise that this is an old post, however it&#039;s been invaluable in helping me to get my PiShow 2.8&quot; Touchscreen working. I&#039;ve successfully compiled the driver and the screen is working and touch overlay calibrated.
The issue that I have is that it appears as if it is still defaulting to the native screen resolution of 720 x 480. Any windows on the desktop are only partially displayed and a browser window is cut off on the right. 
I&#039;m loading Chromium with a web page and have forced Chromium to a smaller size (DISPLAY=:0.0 chromium-browser --window-size=240,320).

Any suggestions on how to reduce the scale of the desktop to 240x320 (I&#039;m running portrait mode)?

Thanks in advance.
I&#039;ve tried adding Overscan setting to the /boot/config.txt]]></description>
			<content:encoded><![CDATA[<p>Hi,<br />
I realise that this is an old post, however it&#8217;s been invaluable in helping me to get my PiShow 2.8&#8243; Touchscreen working. I&#8217;ve successfully compiled the driver and the screen is working and touch overlay calibrated.<br />
The issue that I have is that it appears as if it is still defaulting to the native screen resolution of 720 x 480. Any windows on the desktop are only partially displayed and a browser window is cut off on the right.<br />
I&#8217;m loading Chromium with a web page and have forced Chromium to a smaller size (DISPLAY=:0.0 chromium-browser &#8211;window-size=240,320).</p>
<p>Any suggestions on how to reduce the scale of the desktop to 240&#215;320 (I&#8217;m running portrait mode)?</p>
<p>Thanks in advance.<br />
I&#8217;ve tried adding Overscan setting to the /boot/config.txt</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>
		By: alpha		</title>
		<link>https://alpharesearch.de/?p=384#comment-169</link>

		<dc:creator><![CDATA[alpha]]></dc:creator>
		<pubDate>Tue, 01 Nov 2016 11:13:49 +0000</pubDate>
		<guid isPermaLink="false">http://alpharesearch.de/?p=384#comment-169</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://alpharesearch.de/?p=384#comment-167&quot;&gt;George&lt;/a&gt;.

If I had to copy the device overlay to a new Pi I would probably open a ssh terminal window and start a text editor. I love mc with mcedit. Just do a suso apt install mc on the Pi. Now just copy and past from the web page in the ssh window where mcedit was started and save via F2 and exit via F10. Give mc a try to copy or move files, I like it to make my life easier.]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://alpharesearch.de/?p=384#comment-167">George</a>.</p>
<p>If I had to copy the device overlay to a new Pi I would probably open a ssh terminal window and start a text editor. I love mc with mcedit. Just do a suso apt install mc on the Pi. Now just copy and past from the web page in the ssh window where mcedit was started and save via F2 and exit via F10. Give mc a try to copy or move files, I like it to make my life easier.</p>
]]></content:encoded>
		
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		<title>
		By: George		</title>
		<link>https://alpharesearch.de/?p=384#comment-168</link>

		<dc:creator><![CDATA[George]]></dc:creator>
		<pubDate>Tue, 01 Nov 2016 02:00:09 +0000</pubDate>
		<guid isPermaLink="false">http://alpharesearch.de/?p=384#comment-168</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://alpharesearch.de/?p=384#comment-167&quot;&gt;George&lt;/a&gt;.

please ignore my previous comment. I have just found the solution to it (http://lallafa.de/blog/2015/03/fbtft-setup-on-modern-raspbian/ )]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://alpharesearch.de/?p=384#comment-167">George</a>.</p>
<p>please ignore my previous comment. I have just found the solution to it (<a href="http://lallafa.de/blog/2015/03/fbtft-setup-on-modern-raspbian/" rel="nofollow ugc">http://lallafa.de/blog/2015/03/fbtft-setup-on-modern-raspbian/</a> )</p>
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		<item>
		<title>
		By: George		</title>
		<link>https://alpharesearch.de/?p=384#comment-167</link>

		<dc:creator><![CDATA[George]]></dc:creator>
		<pubDate>Mon, 31 Oct 2016 23:58:24 +0000</pubDate>
		<guid isPermaLink="false">http://alpharesearch.de/?p=384#comment-167</guid>

					<description><![CDATA[Thank you! This is very useful, but how to do the 1st step? How do you add the overlay that you describe. An extra description on that would make this post perfect :)]]></description>
			<content:encoded><![CDATA[<p>Thank you! This is very useful, but how to do the 1st step? How do you add the overlay that you describe. An extra description on that would make this post perfect 🙂</p>
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