[Bug 1907870] Re: Intel UHD Graphics: external monitor detected but black screen (has a preferred mode but no current mode set)

Hi! I have updates on this: ¡IT WAS A CABLE PROBLEM! Same cable and same monitor that works OK with my HP OMEN 15 doesn't work with my HP 440 G7... I tried with a different cable (a shorter one) and everything looks normal. Please, mark this as closed. Thanks everyone for the help, HAPPY 2021.

[Bug 1907870] Re: Intel UHD Graphics: external monitor detected but black screen (has a preferred mode but no current mode set)

HI! I had tested with Fedora 33... same results... Happy Xmass ** Summary changed: - Samsung SMBX2250 monitor detected but black screen (has a preferred mode but no current mode set) + Intel UHD Graphics: external monitor detected but black screen (has a preferred mode but no current mode set)

[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

** 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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.

[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

I tried with Plasma desktop... Same result. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: HDMI monitor detected but black screen (has a preferred mode but no current mode) with Inte

[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

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 b

[Bug 1907870] Re: Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

Just in case... same cable and same external monitor works perfect on my HP Omen 15 with Nvidia GTX1060 and Ubuntu 20.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: Secondary screen

[Bug 1907870] Re: Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

** Attachment added: "Xrandr with Wayland output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907870/+attachment/5444003/+files/xrandrv.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1

[Bug 1907870] Re: Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

** Attachment added: "Xrandr with Xorg output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907870/+attachment/5444002/+files/xrandrv_xorg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs

[Bug 1907870] Re: Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

** Attachment added: "grep . /sys/class/drm/*/modes > drmmodes.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907870/+attachment/5444004/+files/drmmodes.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.l

[Bug 1907870] Re: Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

Using Wayland didn't solve the problem, even worst... it makes the desktop more unstable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: Secondary screen detected but black screen with

[Bug 1907870] xdpyinfo.txt

apport information ** Attachment added: "xdpyinfo.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443212/+files/xdpyinfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] acpidump.txt

apport information ** Attachment added: "acpidump.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443211/+files/acpidump.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] Xrandr.txt

apport information ** Attachment added: "Xrandr.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443210/+files/Xrandr.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: Se

[Bug 1907870] XorgLogOld.txt

apport information ** Attachment added: "XorgLogOld.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443209/+files/XorgLogOld.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Ti

[Bug 1907870] XorgLog.txt

apport information ** Attachment added: "XorgLog.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443208/+files/XorgLog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] UdevDb.txt

apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443207/+files/UdevDb.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: Se

[Bug 1907870] ProcModules.txt

apport information ** Attachment added: "ProcModules.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443206/+files/ProcModules.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870

[Bug 1907870] ProcInterrupts.txt

apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443205/+files/ProcInterrupts.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/190

[Bug 1907870] ProcEnviron.txt

apport information ** Attachment added: "ProcEnviron.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443204/+files/ProcEnviron.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870

[Bug 1907870] ProcCpuinfoMinimal.txt

apport information ** Attachment added: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443203/+files/ProcCpuinfoMinimal.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/

[Bug 1907870] ProcCpuinfo.txt

apport information ** Attachment added: "ProcCpuinfo.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443202/+files/ProcCpuinfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870

[Bug 1907870] MonitorsUser.xml.txt

apport information ** Attachment added: "MonitorsUser.xml.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443201/+files/MonitorsUser.xml.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs

[Bug 1907870] Lsusb-v.txt

apport information ** Attachment added: "Lsusb-v.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443200/+files/Lsusb-v.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] Lsusb-t.txt

apport information ** Attachment added: "Lsusb-t.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443199/+files/Lsusb-t.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] Lspci-vt.txt

apport information ** Attachment added: "Lspci-vt.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443198/+files/Lspci-vt.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] Lspci.txt

apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443197/+files/Lspci.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title: Seco

[Bug 1907870] DpkgLog.txt

apport information ** Attachment added: "DpkgLog.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443196/+files/DpkgLog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870 Title:

[Bug 1907870] Dependencies.txt

apport information ** Attachment added: "Dependencies.txt" https://bugs.launchpad.net/bugs/1907870/+attachment/5443195/+files/Dependencies.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1907870

[Bug 1907870] Re: Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

apport information ** Tags added: apport-collected groovy ubuntu ** Description changed: Hi! I have an HP ProBook 440 G7 with i7-10510U and INTEL UHD GRAPHICS. The problem: When i connect to my external monitor (a Samsung BX2250) via HDMI, the screen is detected (i can see it in di

[Bug 1907870] [NEW] Secondary screen detected but black screen with Intel UHD graphics on kernel 5.9

Public bug reported: Hi! I have an HP ProBook 440 G7 with i7-10510U and INTEL UHD GRAPHICS. The problem: When i connect to my external monitor (a Samsung BX2250) via HDMI, the screen is detected (i can see it in display settings) but the external monitor remains black. Seams like a bad frequency

[Bug 1775065] Re: No brightness controls and /sys/class/backlight empty after upgrade to Bionic on laptop with GeForce GTX 1060 Mobile (kernel parameter acpi_osi= is a workaround)

Hi! I have an Omen by HP 15-ce004la with NVIDIA GTX1060 Q-MAX and the bug is still present. This is my setup: Ubuntu 18.04 with kernel 4.18.13-041813-generic I'am getting acpi errors like this one below in boot time too: [0.104082] ACPI BIOS Error (bug): Failure creating [\_SB.PCI0.XHC.RHUB