<p><b>@fniephaus</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/306#discussion_r246955513">platforms/iOS/vm/OSX/sqSqueakOSXMetalView.m</a>:</p>
<pre style='color:#555'>> +    // Alawys try to fill the texture with the pixels.
+       if ( fullScreendispBitsIndex ) {
+               [self loadTexturesFrom: fullScreendispBitsIndex subRectangle: (clippyIsEmpty ? rect : NSRectFromCGRect(clippy))];
+               //[self loadTexturesFrom: fullScreendispBitsIndex subRectangle: rect];
+               clippyIsEmpty = YES;
+           syncNeeded = NO;
+       }
+       
+       MTLRenderPassDescriptor *renderPassDescriptor = self.currentRenderPassDescriptor;
+       if(renderPassDescriptor != nil && self.currentDrawable)
+       {
+               currentCommandBuffer = [graphicsCommandQueue commandBuffer];
+               currentRenderEncoder = [currentCommandBuffer renderCommandEncoderWithDescriptor: renderPassDescriptor];
+               
+               // Set the viewport.
+               [currentRenderEncoder setViewport: (MTLViewport){0.0, 0.0, lastFrameSize.size.width, lastFrameSize.size.height}];
</pre>
<p>When I change this line to</p>
<div class="highlight highlight-source-c"><pre>[currentRenderEncoder setViewport: (MTLViewport){<span class="pl-c1">0.0</span>, <span class="pl-c1">0.0</span>, lastFrameSize.<span class="pl-smi">size</span>.<span class="pl-smi">width</span> * <span class="pl-c1">2</span>, lastFrameSize.<span class="pl-smi">size</span>.<span class="pl-smi">height</span> * <span class="pl-c1">2</span>}];</pre></div>
<p>the problem I mentioned in <a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="379497788" data-permission-text="Issue title is private" data-url="https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/306" data-hovercard-type="pull_request" data-hovercard-url="/OpenSmalltalk/opensmalltalk-vm/pull/306/hovercard?comment_id=453290159&comment_type=issue_comment" href="https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/306#issuecomment-453290159">#306 (comment)</a> goes away. But this is probably not the right fix.</p>

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