On Fri, Mar 14, 2014 at 9:26 AM, Alex Deucher <alexdeuc...@gmail.com> wrote: > On Thu, Mar 13, 2014 at 6:34 AM, Sebastian Schultz > <sebastian2.schu...@st.ovgu.de> wrote: >> Is there anything I can do to about it? Or is this an upcoming feature? Or is >> it a bug and I should submit a report? > > It would be a new feature. It's not a high priority at the moment, so > I'm not sure how quickly we would get to it.
If you are inclined to play with this yourself, try adjusting the registers in dce5_crtc_load_lut(), in particular NI_OUTPUT_CSC_CONTROL.NI_OUTPUT_CSC_GRPH_MODE. Try setting it to NI_OUTPUT_CSC_TV_RGB or NI_OUTPUT_CSC_YCBCR_601 or NI_OUTPUT_CSC_YCBCR_709. Alex > > Alex > >> >> Sebastian >> >> >> Am Mittwoch, 12. März 2014, 12:18:37 schrieb Alex Deucher: >>> On Wed, Mar 12, 2014 at 10:31 AM, Sebastian Schultz >>> >>> <sebastian2.schu...@st.ovgu.de> wrote: >>> > Hello, >>> > >>> > first of all: I'm using a Radeon 7750 in combination with a monitor via >>> > display port and a tv via the HDMI port. Most of the time I do not want a >>> > picture on the tv, only when wathcing videos, so I use xrandr scripts to >>> > switch that display on and off. And here comes my problem: >>> > >>> > With the arrival of linux 3.13 to the [core]-repo of arch linux I switched >>> > from catalyst to the open source drivers, as they finally provide a >>> > sufficient performance. My only problem now is that the colorspace is >>> > compressed for gray values below 16 (that means every shade of gray >>> > having values of 0 to 16 look just black). That's only the case for my >>> > HDMI-output connected to my TV, which worked without problems with the >>> > catalyst drivers. Also, only the dark grays are compressed, the >>> > near-white grays show up correct. My Xorg.0.log shows that the TV on >>> > HDMI-0 supports the RGB 4:4:4 encoding (just like the monitor does): >>> > http://pastebin.com/PF6sjzu1 >>> > >>> > I found a xrandr-command "--set "Broadcast RGB" "Full"", which can be used >>> > with chips from Intel. Is there something similar for the open source ati >>> > drivers? >>> >>> Not at the moment. >>> >>> Alex >> _______________________________________________ >> xorg@lists.x.org: X.Org support >> Archives: http://lists.freedesktop.org/archives/xorg >> Info: http://lists.x.org/mailman/listinfo/xorg >> Your subscription address: %(user_address)s _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
