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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Images gamma rendering issue"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107482">107482</a>
</td>
</tr>
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<th>Summary</th>
<td>Images gamma rendering issue
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>esebaro@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=140962" name="attach_140962" title="images gamma">attachment 140962</a> <a href="attachment.cgi?id=140962&action=edit" title="images gamma">[details]</a></span>
images gamma
I have a PC with:
MB: Asrock AM1B-ITX
CPU: AMD Kabini Athlon 5350 APU
iGPU: Radeon HD 8400 / R3 Series
Displays: DVI Asus, HDMI Samsung
kernel-4.15/4.16/4.17
xorg-server-1.19.5
xorg-drivers-1.19
xf86-video-amdgpu-18.0.1
xf86-video-ati-18.0.1
libdrm-2.4.92
When I increase the gamma to check the quality of images (xgamma -gamma 3),
some pixels are darker/colorful, it seems like gamma is not applied uniformly
for all pixels. This happens on all kernels with any video driver: radeon,
amdgpu, amdgpu-dc.
I thought there's something wrong with the images so I've edited them on Gimp
by increasing brightness or change hue/saturation. This was fine until the
kernel 4.17 and the amdgpu-dc driver upgrade, images have again the issue. They
are fine with amdgpu.
Is there something I can do about this?
Thanks.</pre>
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