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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - nouveau: Xorg crashes sooner or later in 3840x2160 mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93405#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - nouveau: Xorg crashes sooner or later in 3840x2160 mode"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93405">bug 93405</a>
from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
<pre>(In reply to Elmar Stellnberger from <a href="show_bug.cgi?id=93405#c16">comment #16</a>)
<span class="quote">> let my HDMI output simply stay black. The support of the hdmimhz parameter
> is an amazing feature that no proprietary driver will give; neat work!</span >
>From the NVIDIA blob readme file:
"""
Option "ModeValidation" "string"
"NoMaxPClkCheck": each mode has a pixel clock; this pixel clock is validated
against the maximum pixel clock of the hardware (for a DFP, this is the maximum
pixel clock of the TMDS encoder, for a CRT, this is the maximum pixel clock of
the DAC). This argument disables the maximum pixel clock checking stage of the
mode validation pipeline.
"NoEdidMaxPClkCheck": a display device's EDID can specify the maximum pixel
clock that the display device supports; a mode's pixel clock is validated
against this pixel clock maximum. This argument disables this stage of the mode
validation pipeline.
"NoMaxSizeCheck": each NVIDIA GPU has a maximum resolution that it can drive;
this argument disables this stage of the mode validation pipeline.
"""
And a whole bunch of others.
(In reply to Elmar Stellnberger from <a href="show_bug.cgi?id=93405#c17">comment #17</a>)
<span class="quote">> By the way does anyone know whether there is a similar feature for the
> radeon driver? I have an XFX Radeon R5 230 card which was advertised as 4K
> ready. However I did never get any of the 4K modes to work.</span >
Wrong place to ask.</pre>
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