On 08/08/2015 01:58 PM, Daniel Pocock wrote:
I recently started using a 4K display with Debian jessie and GNOME shell The hardware setup was quite straightforward as I chose to buy a new
There is also an understated problem - DPI changing during a session, or even different monitors having different DPI in a multihead situation.
This seems to be particularly poorly supported, but is rather common. My laptop is 1920x1080 in a 12.5" display, with approximately 176DPI. The external monitor on its docking station is a more conventional DPI.
There are many questions here:
There are many things that seem to not handle differences in DPI. Fonts are just the start. What about taskbars and taskbar icons, which become tiny at certain DPIs? We seem to be using pixel heights in these a lot.
graphics card with 4K support and a relatively new monitor. The graphics card and monitor both support DisplayPort 1.2 so I just hook them up with the standard cable. The graphics card vendor supplies a proprietary driver but everything else is currently running using the packages from jessie. However, I've come up against the DPI issues. The actual DPI is about 131x137 on a 32" display. xdpyinfo reports 96x96 It looks like there has been a history of bug reports about DPI in both the Xorg server itself and some individual applications. Some web sites suggested using gnome-tweak-tool to change the window scaling factor. It only appears to accept integer values and changing it from the default of 1 to 2 makes the fonts too big. So, is there any strategy for HiDPI with Debian? Is a BTS tag needed to track such issues perhaps? Or is it already dealt with in unstable and people just have to wait for it? My general feeling is that the 32" 4K display was a worthwhile purchase and it definitely lets me improve my workflow. For example, I can now have all my communication tools (Icedove, IRC and others) arranged in a single virtual desktop, none of them overlap each other and I don't have to use alt-tab to switch between them. In another virtual desktop I no longer need to run Eclipse at full screen, I can just give it two thirds of the screen and use the rest for testing things. However, all fonts are really tiny, they are readable and even pleasant to look at but I would probably like to see them just a little bigger. Regards, Daniel