I have the same problem on Hirsute Hippo. I am on a Lenovo Yoga 730,
connecting to a Coms projector from usb-c through a lenovo usb-c to hdmi
adapter that was included with the laptop.
I have had no trouble before connecting from the same laptop through the
included usb-c to VGA adapter.
I
This still exist. Maybe we can help somehow to resolve it?
Linux insspb-kubuntu 5.4.0-89-generic #100-Ubuntu SMP Fri Sep 24
14:50:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
root@insspb-kubuntu:/home/insspb# xrandr
I have the same exact problem. I'm running a xps 13 (processor/gpu:
intel i7 10510U). I'm using this connector: https://www.dell.com/en-
ie/work/shop/dell-adapter-usb-c-to-hdmi-dp-with-power-pass-
through/apd/470-aegy/pc-accessories#techspecs_section My monitor is a
BenQ EL2870U, I'm using 4K
I couldn't find a way to edit my comment above. But I should add that
I'm running focal fossa (though the same problem was going on in Bionic
Beaver):
rafael@zim:~$ uname -a
Linux zim 5.4.0-51-generic #56-Ubuntu SMP Mon Oct 5 14:28:49 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux
rafael@zim:~$
It affects me too. Dell XPS 9360, tv is a samsung UE32F57000AW
Cable is usb-c to HDMI AUKEY brand (with a sony bravia TV it works).
Active kernel 4.11.0-14-generic, ubuntu version is 16.04.3 LTS.
This is xrandr output for the samsung monitor
DP1 connected 1920x1080+3200+720 (0x1f6) normal (normal
** Project changed: dell-sputnik => linux
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Title:
Wrong colours on some monitors via USB-C to HDMI
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** Also affects: linux
Importance: Undecided
Status: New
** Project changed: linux => dell-sputnik
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Title:
Wrong colours on some
I have just tried Linux Mint 17.3 on a Dell XPS 13 9350 plus a Samsung
TV, no difference as the problem is present there too.
** Attachment added: "Monitor on Linux Mint 17.3"
I did a new test with another laptop with Intel graphics and Ubuntu
16.04, but which has an HDMI port, connected to one of the three Samsung
TVs, and the colors look fine.
Also, for what it's worth, I compared the EDID information (obtained
with "get-edid | parse-edid") from this laptop with the
There is another commonality: Intel graphics.
I even tried the Padoka PPA, but the issue was still present.
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Title:
Wrong colours on some
I think I have the same issue:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1586787
The colors on the TV look weird the same way that your colors look.
I tried your workaround (restart the TV), and it fixed the colors for me
as well. (Thanks!)
Details on my case:
- It happens with two
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-hwe-edge (Ubuntu)
Status: New => Confirmed
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