Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Resolution problem LG 29UM60
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Desktop Environments
View previous topic :: View next topic  
Author Message
therealjrd
Tux's lil' helper
Tux's lil' helper


Joined: 18 May 2006
Posts: 103

PostPosted: Sun Mar 11, 2018 3:47 pm    Post subject: Resolution problem LG 29UM60 Reply with quote

I bought an LG 29UM60 monitor. It will display up to 2560x1080, and in fact wants to run in that mode.

I've been unable to get my gentoo workstation to drive it at that rez. The box wants to come up in 1920x1080 mode.

xrandr says

Code:

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 798mm x 334mm
   1920x1080     50.00    59.99*   59.94 
   1680x1050     59.88 
   1600x900      60.00 
   1280x1024     75.02    60.02 
   1280x800      59.91 
   1152x864      75.00    59.97 
   1280x720      60.00    50.00    59.94 
   1024x768      75.03    60.00 
   832x624       74.55 
   800x600       75.00    60.32 
   720x576       50.00 
   720x480       60.00    59.94 
   640x480       75.00    60.00    59.94


My display hardware is
Code:

01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS780L [Radeon 3000]


Code tags fixed by NeddySeagoon

I'm running a 4.9.76-gentoo-r1 kernel.

I've tried assorted kernel command line options, for instance "video=2560x1080@60", with and without naming the video connector device, at various resolutions and refresh rates, but so far the only result I've gotten is that with some options video doesn't start at all, and with some it falls back to 1920x1080.

Hints?

Thanks in advance . . .
Back to top
View user's profile Send private message
NeddySeagoon
Administrator
Administrator


Joined: 05 Jul 2003
Posts: 42592
Location: 56N 3W

PostPosted: Sun Mar 11, 2018 4:57 pm    Post subject: Reply with quote

therealjrd,

1920x1080 may be as good as it gets with that graphics system over HDMI.
Google isn't very helpful.

You could try a dual link DVI to display port cable but you won't get sound then.

I have a similar on board graphics card
Code:
Integrated ATI RadeonTM HD3300 GPU
SidePort Memory - onboard 128MB DDR3 1333 memory
- Supports HDMI (TM) Technology with max. resolution up to
       1920 x 1200 (1080p)
- Supports Dual-Link DVI with max. resolution up to
       2560 x 1600 @60Hz
- Supports D-Sub with max. resolution up to
       2560 x 1440 @75Hz


Notice that the HDMI output is at best 1920 pixels wide.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Back to top
View user's profile Send private message
therealjrd
Tux's lil' helper
Tux's lil' helper


Joined: 18 May 2006
Posts: 103

PostPosted: Sun Mar 11, 2018 5:12 pm    Post subject: Reply with quote

Thanks Neddy

Where did you get the display of the capabilities of your video adapter?

Are there DVI-D to HDMI adapters? This monitor has only HDMI input :(

[Later] D'oh. Of course there are.

I guess I could look for a PCI display card. Or I could go find another monitor. Grumble.
Back to top
View user's profile Send private message
NeddySeagoon
Administrator
Administrator


Joined: 05 Jul 2003
Posts: 42592
Location: 56N 3W

PostPosted: Sun Mar 11, 2018 6:12 pm    Post subject: Reply with quote

therealjrd,

My on board graphics capability is in my motherboard user manual.
The PDF for my motherboard is on the web.

dmidecode will tell you a bit about your system, including your motherboard.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Desktop Environments All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum