[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-17 Thread Daniel van Vugt
** No longer affects: mutter (Ubuntu) ** No longer affects: gnome-control-center (Ubuntu) ** Summary changed: - HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9 + Samsung SMBX2250 monitor detected but black screen (has a

[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-17 Thread Juan Manuel Diaz
** Attachment added: "Xrandr output with Plasma" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1907870/+attachment/580/+files/plasmaxrandr.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu.

[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-16 Thread Daniel van Vugt
That's a good point. We might be able to rule out mutter... Can you please run this command in Plasma desktop: xrandr --verbose > plasmaxrandr.txt and attach the resulting file here? ** Changed in: mutter (Ubuntu) Status: New => Incomplete ** Changed in: gnome-control-center (Ubuntu)

[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-16 Thread Juan Manuel Diaz
I tried with Plasma desktop... Same result. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: HDMI monitor detected but black screen (has a preferred mode but no

[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-15 Thread Daniel van Vugt
That sounds like a different bug. The cause of this bug appears to be related to your HDMI monitor not having a current mode set. Although it does list a 'preferred' mode. That much is clear in the xrandr output. Failing to set a current mode is most likely a bug in 'libmutter'. -- You

[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-15 Thread Juan Manuel Diaz
I read about a bug similar to this affecting mutter 3.34,but said that they can see the poi ter in the second screen. In this case my monitor falls in no-signal after a few seconds of trying to get the correct mode. (pls, sorry for my English) Regards JM -- You received this bug notification

[Desktop-packages] [Bug 1907870] Re: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Intel UHD graphics on kernel 5.9

2020-12-15 Thread Daniel van Vugt
I think this is probably a bug in 'mutter'. Less likely a bug in 'gnome- control-center' or 'xorg-server'. ** Summary changed: - Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9 + HDMI monitor detected but black screen (has a preferred mode but no current mode)